Posts Tagged ‘handbags’

Advanced phosphorescent pigments make life-saving easier

A specially formulated compound glows in very low light conditions making emergency shears more useful to medical response personnel trying to quickly reach wounds.

A phosphorescent glow-in-the-dark color masterbatch is added to a reinforced nylon compound during
g
New pigments extend afterglow effect by a factor of ten. Photo: RTP

molding to create a glow-in-the-dark effect to the Rip Shears Ripper, which allows EMTs to quickly slice through multiple layers of clothing, equipment and body armor to access and treat wound sites.  The Rip Shears Ripper is attached to a standard trauma shear.

A phosphorescent glow-in-the-dark color masterbatch from compounder RTP (Winona, MN) is added to glass-reinforced nylon compound used by Icon Injection Molding (Phoenix, AZ).

“This was a very specific request; we hadn’t done a glow-in-the-dark product before,” says Steve Kleitsch, Icon’s co-owner. “But, we were aware of RTP Co.’s expertise with visual effects, so we brought them in for assistance.”

The Rip Shears Ripper uses an RTP 200 Series glass fiber reinforced nylon 6/6 compound, which provides the stiffness needed to allow the blade to stay on track and flow through fabric cleanly.  If the plastic were to flex at all fabric could bunch, slowing down access to the wound. Blades are made from stainless steel.

Advanced glow-in-the-dark technology creates an “afterglow” effect that lasts for up to 8 hours, which is about 10 times longer than traditional GITD technologies.

“The inventor loved it and we began production immediately, Kleitsch says.

Phosphorescent pigments absorb ultraviolet light and then slowly emit that energy. They work best with clear or translucent resin systems such as elastomers, acrylics, polycarbonates, styrenics and polyolefins. Color options have increased in recent years.

The specialized compounds are often used to eliminate wiring in signs, railings, armrests, or automotive instrument panels.

Injection Molding Company : The Basic Principle Of Injection Molding

Injection molding is a producing technique for making parts from both thermoplastic and thermosetting plastic materials in top injection molding company. Heated, fluid plastic is injected at high pressure into a mold, which is the complete opposite of the desired product shape. Injection molding is employed generally for manufacturing a selection of parts, from the tiniest part to whole body panels of car.The process of injection molding can be described in 4 straightforward steps. These include Plasticizing, Injection, Chilling, and Ejection. Each one of these steps isn’t like the other and the right procedure is required for the successful completion of the total process.

Plasticizing- iT involves the conversion of the polymer material from its normal hard granular form at room temperatures, to the liquid which is necessary for injection at its correct softening temperature.

Injection- This is the stage in which this melt is introduced into a mold to totally fill a hole or cavities.

Chilling- It is the act of removing heat from the melt to convert it from a liquid consistency back to its original rigid state.

EjectionThe ejection phase is the last phase where the removal of the cooled, moulded part from the mould hole is done.

The Use of Powder Coatings for Plastic and Metal Parts

Right after a plastic piece of office furniture, an appliance or an electronic device is molded, often specialty coatings are added. The coating reinforces the plastic while adding an eye-catching and protective color as well as a clear powder coating. In addition to the above mentioned examples, various other industries make use of these specialty coatings as well, for example automotive, medical, seating, consumer goods and other custom applications.

These plastic powder coatings supply different advantages, like improved resistance to UV exposure and a stronger durability than an uncoated piece. There are a broad variety of color options as well as textures and finishes readily available and making use of this procedure eliminates the requirement to keep large inventories of color resins on hand. This method also offers a lower environmental effect than plating or painting and is capable of big production runs of molded pieces coated in one base color. Using powder coatings also results in a constant color with finished items.

Powder coatings are also applied to metal pieces. With metal pieces, the powder coating, which is a dry, free-flowing powder that does not need to have a solvent, is applied either by making use of a fluidized bed or electrostatically. Then, after the powder is applied, it is placed under heat. This stage enables the powder to freely cover the part and form a strong skin. The skin, which is significantly more durable than paint, is usually either thermoset polymer or thermoplastic.

Again, making use of a powder coating with metal pieces yields several benefits over making use of a liquid coating. To start, it is far more eco-friendly as powder coating emits nearly zero volatile organic compounds and produces less hazardous waste than liquid coatings. Further, 100 percent of overspray can be recycled, which indicates almost all of the product can be used and little to none wasted. The coating is significantly thicker and stronger than a paint coating and will not run or sag.

This technological innovation is an excellent option for plastic and metal pieces. Powder coatings offer you a range of benefits and provide diverse alternatives for customizing the color, finish and texture of an item.

Learn About Molded Plastic Parts and Injection Plastic Molding

Yesterday is really totally different from today specifically in the facet of having a Molded Plastic Parts or elements. An individual can under no circumstances really have her or his needed custom plastic parts without going to a plastic part manufacturer plus paying big bucks. Nevertheless to advancement of the technology currently, presently there already are numerous supplies that will help you in generating plastic molded parts even in the comfort of your own home. The fantastic thing about this is that it simply calls for small investment. The plastic molded parts are only as high in craftsmanship on the grounds that the parts developed by manufacturing plants. Really the only difference depends on the ease of the plastic molding process.

If this is the first time for you to produce your very first plastic mold masterpiece, then you have got a great deal of work to carry out. Before you start performing some thing, you’ll want to prepare yourself the needed supplies first. Be aware that you cant ever start in number two if you’ll not begin in number one. Listed here are the things you need in order to make top quality plastic molded parts: mixing sticks, throw-away mixing cups, rubber gloves, brush, release agent, liquid plastic compound, aerosol acrylic enameled surface, scissors, hot glue, disposable container or even cardboard and silicone molding compound. Work with a glue gun for your ideal object or even figure to generally be molded to generally be attached on a flat work surface. This is very crucial that you assure that your plastic molded parts will probably be intact while they are already finished.

The base of a plastic container should be cut and set over the figure. When it enters in an exclusive or even uncommon shape as well as size, a cardboard strip ought to be utilised alternatively. It’s also advisable to leave a place measuring½-1 inch between the container wall also, the object. In the event the object is already located suitably, you will have the container glued on the work surface. This is the means of acquiring that the silicone will not leak out.

Injection Plastic Molding is a kind of an exceptional system that is utilized in creating plastic material parts. In achieving this, a high pressure can be used in injecting the molten plastic in to a mold. It will eventually then be injected in the inverse blueprint from the client’s ideal design so that you can produce the needed shape. In this style of technique, the items of dissimilar molded plastic are generally engineered from thermosetting plastics plus thermoplastics. To paraphrase, this is a method in which the heat-softened plastic is usually pressed from a specific tube into a cool aperture that is definitely formed within the material’s form. It’s got accomplished popularity and regard and made a terrific impact in numerous sectors just like construction, packaging, domestic plumbing, medical, toys, consumer products, motor vehicle along with aerospace.

Almost all sectors in today’s generation employ plastic molds. So, plastic injection molding is quite sought after. Listed here are just some of the most widespread sectors which are recognized to utilize plastic molds within their day-to-day operations: consumer products, food, automotive, electrical, medical, agriculture, gas and oil construction and more.

An Investigation of Surface Engineering Techniques to Minimize Wear of Thermoplastic Injection Mold Tooling

Wear and corrosion are significant industrial issues resulting in high financial losses. With continuously increasing demands placed on thermoplastic injection molded products with regards to increased mechanical properties, leading to the incorporation of highly abrasive fillers and corrosive additives, and narrow dimensional tolerances, the surface engineering techniques to increase wear and corrosion resistance and improve the lifespan of mold tooling are of paramount concern. Proper surface engineering of expensive injection molds which can cost over 300,000 U.S.D. to fabricate is a technically challenging issue due to limitations imposed by the injection mold, coating deposition processes, the wide array of coating architectures, and coating suppliers available. This study investigates three commercially supplied surface treatments for injection molding, electrodeposited chromium, and PVD TiAlN, and PVD/PACVD DLC containing an interfacial layer of chromium nitride. Testing methodologies for evaluation of the tribological performance of these surface treatments in the plastics processing environment have been developed and employed. Analysis of the pristine coatings is conducted to investigate porosity, surface roughness, inherent defects, frictional properties against nylon and polybutylene terephthalate, and elemental composition. Pin-on-plate wear testing is used to evaluate coating-metal sliding contact. Also, a novel test apparatus has been developed and fabricated to emulate the tribology of flowing polymer compounds 2 against mold tooling during the injection process. The dominant wear mechanisms of the chrome coating in exposure to the flowing polymer compound are micro-milling from the abrasive fillers in the compound and corrosive pitting, while the DLC coating exhibits localized delamination from the substrate material. TiAlN shows superior resistance to both corrosion and abrasion in addition to excellent adhesion to the substrate material. Results indicate that TiAlN is a promising candidate for replacement of electroplated chrome which has long been an industry standard.

Getting Smart in Precise Molding Demands

Getting Smart in Precise Molding Demands

PMC, a fourth-generation, family-owned plastic injection molder based in Cincinnati, OH, does not shy away from the toughest jobs in medical devices.

PMC’s fleet of Roboshot machines enables ultra-precise molding in the company’s Class 100,000 cleanroom.In applications such as orthopedics, spinal, arthroscopic/sports medicine, cardiovascular, tissue biopsy, and more, the company produces components for implantables, handheld surgical instruments, and finished medical electronic devices – both sterile and non-sterile, Class 2 and Class 3. PMC also provides complex assembly and sterile packaging (thermoform and pouch) and manages sterilization for finished devices.

To meet some of these tough manufacturing requirements, PMC must continuously adapt and improve.

This is why company leaders have developed a rigorous system they call SMART (Scientific Manufacturing Assures Reliable Throughput). SMART is a scientific approach that PMC applies to every aspect of product/project development and manufacturing. It focuses on following the value stream from material receipt through delivery to customers, enabling the company to deliver, with consistency, complex, hyper-precision components, and assemblies.

Design, Engineering
The depth of experience PMC has in its technical staff is essential to its SMART approach. The company provides front-end design and engineering support to customers, often working with them in the early concept stage. Services include design for manufacturability to help optimize products for lean, cost-effective manufacturing. It also provides manufacturing engineering services as customers consider scalability and multiple manufacturing options.

PMC engineers use ProEngineer in house, but also work with models from all of the major software programs.

The company has a dedicated Director of Process Innovation to work on both proprietary processing technologies for new applications, and to help solve the most challenging molding applications for customers. PMC’s engineering staff also brings together product design, mechanical, manufacturing, and tooling engineering team members.

Overmolding may be the precision plastic injection molding process

Overmolding may be the precision plastic injection molding process

Nevertheless the plastic injection molding process is fairly a complicated 1 and when performed manually it results in different loopholes, the situation doesn’t exists any far more. A screw-type plunger was invented which produced the process less difficult to finish. This was conceivably the primary key improve that this production process underwent. This was also when the mixing of plastics and colorants was also designed. It is incredible to think about the number of from the solutions in our lives are made with these manufacturing approaches. Regardless of whether we are in your own home, with the store or perhaps getting treated medically, plastic solutions surround us every single day.

Whilst the plastic injection molding process has improved, the basic procedures haven’t altered overly a great deal. When a kind of plastic was designed that might be heated and formed conveniently people today began to seem for any way to develop a few dimensional objects effortlessly and continually. The plastic injection molding process adopted shortly right after.

Overmolding would be the precision plastic injection molding process where by a person materials is molded over a second materials. As an illustration, you shouldn’t method on injection molding the next content onto the very first substance whenever they are usually not compatible for the distinct application. When the correct supplies happen to be decided on, overmolding the part will type a strong bond which is preserved from the end-use atmosphere.

Should you think about the number of plastic merchandise we use daily, you may see why the plastic injection molding process is such an essential 1. The health-related business is additionally an individual area wherever these products and solutions are utilized a great deal. IV tubes, hoses for oxygen along with other instrument components are all made employing the plastic injection molding process. Typically if products are meant to be applied then disposed of instead than sterilized they can be established using plastic injection molding. Often if things are meant being employed after which disposed of rather than sterilized they are developed applying plastic injection molding.

The plastic varieties made use of for your process of plastic injection molding usually are thermoplastics and thermo sets. Some thermoplastics utilized are nylon, polyethylene, polystyrene and rubber, and Bakelite. From time to time a remarkably elastic polymer is additionally utilized, which happens to be referred to as an elastomer. Ordinarily the choice is according to strength and operate expected for the final item. Although before the vast majority of the producers produced use of polymers like thermoplastics, some thermosets, and some elastomers, right now you can find different alloys that are out there for use.

Since that time, plastic injection moulding continues to be employed extensively within the manufacturing of every thing perfect from milk cartons to entire automobile panels and automotive parts. Since it’s not at all a really costly content, it’s finest suited for mass developed products. It truly is interesting to think that precisely the same process has long been applied for nicely through a century to produce the solutions that we use every day. They make our lives less difficult plus more effortless plus the process continues to enhance as manufacturing methods evolve.

Better performance but lower cost in moulding

Better performance but lower cost in moulding

Developments in injection moulding processes continue to improve efficiency and precision and cut costs. European Plastics News looks at the latest advances in in-mould welding, inline sealing, mould steel and micro moulding.

Sonderhoff, the foamed-in-place foam gasket (FIPFG) system and materials specialist, has developed a new Mold’n Seal process that was shown at the open house at Arburg’s German headquarters at the end of March.

Sonderhoff says that compared with its earlier FIPFG systems, Mold ‘n’ Seal, as shown in Lossburg, has a relatively small footprint of 50m2 for the complete production cell. The cell consists of an Arburg 570S injection moulding machine, polyurethane MK600 mixing and DM402/403 dosing equipment, a 6-axis Kuka articulated part handling and gasket material application robot, and line balancing conveyor belt.

The system fully integrates the Mold’n Seal process with the injection moulding machine’s control system as one inline system. A particularly innovative feature is the cell’s use of just one 6-axis robot for part removal and PUR sealing material application. At the sealing stage, the residual heat from the moulding process reduces the curing time needed to form the in-place foamed gasket on the moulded part.

Sonderhoff marketing director Peter Fischer told European Plastics News that in the Lossburg demonstration, injection moulding, part removal and placement for seal application took around 45 seconds.

Following this, it only took another three minutes for the Fermapor K31 seal to become completely cured, eliminating the need for a long balancing belt.

Stoppages for mixing head cleaning are no longer required with the newly optimised K31 polyurethane material in an eight hour production run. During this time, 2,560 parts can be moulded, foam sealed and passed on for further downline processing.

The 40g cover produced in Lossburg was moulded in Tecnoprene A60 K6, a 30% glass fibre reinforced PP from Italian compounder PGroup.

A new means of welding together two injection mouldings within an injection mould has been launched as the Joinmelt process, developed by injection moulding machine producer Engel with mouldmaker Hummel-Formen and welding system specialist KVT. The process was given its premiere on the Engel and Hummel-Formen stands at the VDI plastics in automotive engineering conference in Mannheim in April.

Key to the process is the use of a patented KVT 400oC hot gas welding method under inert gas. The Joinmelt process itself has been patented by Hummel-Formen. KVT claims the process is suitable for all types of thermoplastics, in particular glass fibre reinforced polyamide media ducts in automotive engine compartments, without the bulges conventionally arising from use of other welding techniques.

In the process, two moulded halves are simultaneously produced on left and right sides of a mould. The mould opens after the cooling stage and the movable left half is slid to a position so that the two mouldings face each other. The hot gas heating element enters the open mould area between the cavities and heats the edges of the two mouldings, which are then welded together by renewed closing of the mould. On reopening, the complete welded part is released.

At the VDI conference, Hummel-Formen pointed out the advantages of using Joinmelt, including clean smooth parts free of particles, greater geometric freedom, lower production costs and weight reduction in a “simplification of the production process”.

In the mould making sector, stainless steel mould steel producer Deutsche Edelstahlwerke (DEW) launched its new Corroplast FM steel at the Euromold 2010 fair last December. The new steel addresses the needs of more precise machining capability when making stainless steel moulds, as the number of cavities increases in multi-cavity PET bottle preform moulds up to as many as 192-cavities.

Key to enhanced machining without compromising corrosion resistance has been two years of work spent in optimisation of the steel alloy’s chromium, nickel, manganese and sulphur contents.

According to Jens-Sebastian Klung of DEW’s development, material and process simulation department: “A particular challenge was homogenisation of the structure and the correct sulphur content, which has a positive effect on machining properties, but also decreases performance, especially in the transverse direction.”

The negative effects of the sulphur content were overcome by attention to melting, secondary metallurgical treatment, as well as by minimisation of embrittlement by delta ferrite through thermodynamic calculations. These measures achieved the required enhanced structural homogeneity.

DEW says that the new Corroplast FM steel, with its 290HB hardness and improved microstructure, is available in 1,000mm wide rolled or forged sheet in thickness of between 40mm and 400mm.

In a conference organised by the IVAM microtechnology trade association at the Compamed 2011 fair last November, examples of overcoming challenges in micro moulding medical device and drug delivery components were given by Paul Glendenning, business development manager micro_components and polymer optics at Micro Systems (UK).

Glendenning identified these key micro mould tooling success factors: machining and alignment accuracy, preferential use of three-plate mould systems for auto-degating, and attention to venting. He pointed out that 0.050 - 0.200mm pin gates are used for injection, “unless an attached runner is needed for part handling”.

A new Wittmann Battenfeld MicroPower 15 machine ran on the Micro Systems (UK) stand at Compamed 2011, producing a medical clip as a development part with overall size of 1.5 x 2.6 mm and tooth pitch of 0.3mm. A clip was also produced on the Wittmann Battenfeld stand at the Medtec 2011 fair in Stuttgart in March. The POM part weighed 0.003g and was produced with 4s cycle time in a four-cavity mould supplied by Microsystems (UK).

Micro Systems (UK) has successfully moulded parts with 0.2mm diameter holes in 1.5mm and 0.32mm diameter holes in 7mm thickness “at a compound angle”. Holes as small as 0.04mm diameter have been achieved in thin moulded filter meshes, Glendenning stated.

Applications described by Glendenning included a micro-moulded drug-delivery caplet involving overmoulding in a two-cavity mould of bio-resorbable material. He also described a catheter tip development for a cardiac operation fluid delivery tube in which Pebax plastic is moulded onto a Pebax tube, followed by post-moulding laser drilling to produce a hole in the tip and 600 holes in the Pebax tube walls. Total cycle time amounts to 20s for two catheters.

Dental surgery was represented among Glendenning’s application examples by DFRP’s Smartseal ProPoint obturation device used in root canal treatment. The device applies hydrophilic polymer instead of conventional Gutta Percha, resulting in the first-ever lateral expansion within the root canal to form a complete 3D seal, claims DFRP.

The 43mm long, 0.18mm diameter ProPoint tip is made of a 60% mineral filled polymer that is “radio-opaque” to X-rays in a two-cavity tool. The tip was developed with Bradford University that has received its first MicroPower machine from Wittmann Battenfeld.

Microfluidic and bio-photonic applications were also addressed by Glendenning, with micro-moulding facing challenges as more features are integrated into microfluidic devices, such as use of diffractive optics to shape laser or LED light in, for example, cell interrogation.

With surface nanostructures being used to control wetting ability, “design know-how is needed at the nano level to create functional surfaces on specific materials”, Glendenning concluded.

Wittmann Battenfeld has been active in other application developments with the earlier MicroSystem 50. This has included micro metal-plastic hybrid part moulding, developed together with the packaging technology business unit of roll-clad metal strip producer Heraeus.

But the new MicroPower machine can be equally well integrated as part of a complete production cell producing items such as LED lead frames by overmoulding thermoplastics onto roll-fed metal strips. With cycle time of 5s, the company claims that cost savings of 30 to 50% can be achieved compared to conventional injection moulding machinery used for this purpose.

Some Points About Plastic Injection Molds

Some Points About Plastic Injection Molds

Some blessings of plastic injection molds are high tolerances. High production rates, low labor prices and minimal scrap losses. There are completely different injection molds techniques accessible to accomplish this as well as rotational molding, injection molding, blow molding, and compression molding to call simply some. Every technique has its edges and is best fitted to the creation of specific things. In contrast to the olden days solely when solely contemporary plastic materials were molded to helpful product, nowadays with environmental awareness on the increase, plastic injection concentrates on using recycled materials. Moreover, the advancements in plastic injection technology have created it potential to manufacture product in any sophisticated shapes. There are many companies which provide manufacturing services like lavorazione plastica milano and Stampaggio materie plastiche milano.

Several terms are commonly used for injection molding. Ejection pins are rods that push the half out of the mildew. This force keeps the mildew closed throughout the injection method. Tonnage will vary from but five tons to 6000 tons, with the upper figures employed in comparatively few producing operations.

In broad terms, the method of plastic molds consists of feeding raw material granules and additives like color, into a hopper situated on the molding machine. The raw material enters a heated barrel with reciprocating screw and therefore the molten plastic is then injected at considerable force into a 2 half mould tool specific to the item being made. The method of plastic injection molds typically begins with an industrial designer or engineer who styles a product. For best manufacturing and production services you can go for lavorazione materie plastiche Piemonte and progettazione stampi milano.

This can be followed up by the work of a toolmaker or mould maker who makes the mould to suit the look created. When molten, they’ll then be manipulated to a brand new form. When shaped to their new form they have to then be cooled to solidify them.

Choose For Your Plastic Bottles Requires The Right Blow Molding Machin

Choose For Your Plastic Bottles Requires The Right Blow Molding Machine

Blow molding machine a€“ choose plastic bottles you need the right equipment, casting is a manufacturing blow molding machine has played a leading role in machinery production. process of thermoplastics for the manufacture of hollow objects.

Two types of machines used in a variety of plastic injection molding machine and blower. Choosing the right rapid prototyping machine is first introduced in last yeara€?s. difficult task in the early 90s into the country, if you are not familiar with the concept of hitting.

Entrepreneurs, such as beauty shop owner, pharmaceutical manufacturers and others should do in their daily lives for plastic bottles and the standerd engine blowing. According to China blowing machine plastic injection molding, and large market for this option, it is very difficult from the best manufacturers of equipment. There are options that can be entered in the secret blow, injection machines. It includes an extruder with an extrusion head. It must have a minimum closure. Two deaths were particularly welcome. Query specifications and key features. For example, the barrel, so the ideal screw should be set up steel and nitrification. Extrusion machine structure will be adjusted automatically. PET bottle materials is a relatively small amount of hope for the development and sale of polyester products, heat-formed into a plastic bottle blow molding. PET bottle embryo is usually available in different shapes and sizes. We provide high quality ball you, please contact us. The decisions are high-speed PET plastic bottle blow molding machine is heated preform to hire. The resulting plastic bottles used for various applications, including carbonated beverages, alcoholic drinks, liquid laundry detergent, body lotion, prescription medicines, cosmetics and personal care products. Plastics can be non-metallic compounds. It can be molded into different shapes. As the plastic pipes, toys, bottles, kitchen utensils, protective caps, plastic bottles commonly used mold. Plastic molding process includes several. It is important to understand the various processes that I have. Injection molding and is therefore an integral part of plastic molding. The former includes causing a matrix, which melts the plastic, the product, we can provide you with complete ceramic films can make your kitchen clean. turn format. When cooled mold can be removed. This is a common standard or large-scale production data from the choice of caps, furniture, apart from all of the body. The latter is the same injection molding. Output products embrace plastic bottles, containers and pipes. High quality casting machine to get the final plastic models you.