Thursday, July 27, 2017

Fluoropolymer Tubing

Fluoropolymer Tubing with its unique combination of chemical, physical, and electrical properties, is used in aerospace, automotive, electronics, chemical manufacturing, healthcare, and food processing. Virtually total chemical inertness, plus heat resistance and excellent dielectric stability, give Fluoropolymer & Kynar ® tubing extended life, superior performance, extremely high reliability, and virtually unmatched versatility in many applications.
Fluoropolymer Tubing

Thin-Wall Transparent Fluoropolymer FEP Tubing

Thin-wall transparent fluoropolymer FEP tubing is manufactured from special virgin grade DuPont thermoplastic FEP fluoropolymer. Unlike PTFE tubing, this material can be heat sealed.

PTFE Tubing

The recommended choice for temperature requirements ranging up to 500º F (260º C), It resists “melt-off” by soldering irons when making terminations.

PVDF Tubing

An abrasion resistant fluoropolymer suitable for use in applications requiring chemical resistance with low permeability. It provides excellent chemical resistance.

PFA Tubing

Offers excellent crack and stress resistance.The product of choice for applications involving extreme chemical resistance combined with high temperature exposure.

FEP Tubing

The preferred material in production of small diameter tubing of continuous lengths. Its chemical and dielectric properties are similar to those of PTFE.

Fluoropolymer Tubing Applications:

Aerospace &Transportation Technology, Electronics, Components & Insulators, Chemical & Pharmaceutical Manufacturing, Food Processing, Environmental Sciences, Air Sampling, Fluid Transfer Devices and Water Processing Systems

PTFE Tubing, PVDF Tubing, PFA Tubing, FEP Tubing and various other fluoropolymer products have great chemical inertness and offer superior mechanical and physical properties.

Tuesday, July 25, 2017

Teflon® & Non-Stick Coatings

Teflon non-stick industrial coatings are available in both liquid and powder. The versatility of Teflon® coatings allow almost unlimited application to a wide variety of parts sizes and configurations, always adding value far beyond the inherent nonstick qualities. Versatility unmatched by any other engineered material. Industrial Teflon® coatings spray on like paint and bake to a tough, inert finish. Over the years, technology has extended the family of non-stick coatings to ensure a finish with the ideal combination of properties to meet most design needs. In 2015 the United States accounted for 15.5% of the world consumption of PTFE coatings. From 2015 to 2020, US consumption of PTFE coatings is expected to grow at 2.0% per year.

By combining heat resistance with almost total chemical inertness, excellent dielectric stability and a low coefficient of friction, non-stick industrial coatings offer a balance of properties unbeatable by any other material. With an industrial Teflon® coating, the coefficient of friction is generally lowered to a range of 0.02 to 0.15, depending on the load, sliding speed, and type of coating used. Dry lubricant coatings are special versions of Dupont Teflon®-S technology designed to provide lubrication under high-pressure/velocity (PV) conditions. These products are solvent-based, one-coat systems that are usually cured between 148°C/300°F and 371°C/700°F.

Teflon® coating services can be applied to carbon steel, aluminum, stainless steel, steel alloys, brass and magnesium as well as non-metallics such as glass, fiberglass, some rubber and plastics. Optimum adhesion is obtained by roughening the surface before applying the industrial coating.

Teflon® is a registered trademark of Chemours. Orion Industries, Ltd is a Licensed Industrial Applicator of Teflon®.

Dielux PTFE Filled Copolymer Delrin Sheet Rods

Delrin sheet and rods come in many forms, filled and unfilled. Dielux is a PTFE acetal (filled copolymer) known for the outstanding durability and wear features. Often this material is used in the place of machined metal and plastics when good dimensional stability, minimal friction and excellent resistance to wear are required. The filled PTFE allows this material to be utilized without any form of grease or lubricant. This particular feature is essential for specific industries that do not desire to have added chemical lubricants, such as the food industry. The white Dielux is completely compliant with the FDA and often found in machines used for food processing.

PROPERTIES


APPLICATIONS:Gears;Bearings;Bushings;Pads;Gaskets;Seals.

ADVANTAGES:Excellent performance in wet and dry environments;Low aborption to moisture;Minimal friction;Resistant to chemicals;Dimensionally stable;Ease in machining;FDA compliant (white sheet and rod only);Durable and stiff.

Monday, July 24, 2017

What is injection moulding and how does injection moulding work?

Injection moulding along with extrusion ranks as one of the prime processes for producing plastic articles. It is a fast process and is used to produce large numbers of identical items from high precision engineering components to disposable consumer goods.

Most thermoplastics can be processed by injection moulding; the most common materials used include:
  • Acrylonitrile-Butadiene-Styrene ABS
  • Nylon PA
  • Polycarbonate PC
  • Polypropylene PP
Injection mouldings count for a significant proportion of all plastics products from micro parts to large components such as car bumpers and wheelie bins. Virtually all sectors of manufacturing use injection moulded parts. The flexibility in size and shape possible through use of this process has consistently extended the boundaries of design in plastics and enabled significant replacement of traditional materials thanks to light weight and design freedom.
How Does Injection Moulding Work?
Material granules for the part is fed via a hopper into a heated barrel, melted using heater bands and the frictional action of a reciprocating screw barrel. The plastic is then injection through a nozzle into a mould cavity where it cools and hardens to the configuration of the cavity. The mould tool is mounted on a moveable platen – when the part has solidified, the platen opens and the part is ejected out using ejector pins.
After a product is designed, usually by an industrial designer or an engineer, moulds are made by a mouldmaker (or toolmaker) from metal, usually either steel or aluminum, and precision-machined to form the features of the desired part..
injection moulding machine process
An illustration of an injection moulding machine.
Parts to be injection moulded must be very carefully designed to facilitate the moulding process; the material used for the part, the desired shape and features of the part, the material of the mould, and the properties of the moulding machine must all be taken into account. The versatility of injection moulding is facilitated by this breadth of design considerations and possibilities.
Source: http://www.avplastics.co.uk/what-is-injection-moulding

Friday, July 21, 2017

Plastic Extruded Profiles Available in UHMW and MD-Nylon Materials

Slideways is the expert at providing extruded profiles. Profiles are available in UHMW, High temp UHMW, Oil filled UHMW MD-Nylon and PTFE (Teflon®). Rail covers and snap-ons are stocked in 10 and 20 foot lengths. Some are also stocked in 100 and 500 foot coils.
The extruded profile is also available in MD-Nylon J-Leg, UHMW J-Leg, UHMW Full Round, or UHMW Half-Round.
Extruded profiles can be used as belt guides, guide rails and protective edging.  They are high impact resistant and will not mar most cans or bottles.

Custom Angles and Channels

Slideways can machine custom angles and channels from any material for special applications.  Custom angles and channels are used for guiding plastic modular belts or chains. Slideways can add mounting holes or apply pressure-sensitive adhesive for easy installation.
UHMW guide angles and channels can be used to line the bottoms of steel channel to prevent metal-to-metal contact in wear strip applications.
Slideways machines custom sized angles and channels for specific applications.

Cut Plastic Wear Strip and Cut-To-Size Plastic

Slideways keeps an extensive inventory of plastic materials. The thickness can be planed to a plus or minus .01 inches; saw-cut widths to a plus or minus .03 inches; machined to a plus or minus .01 inches.

High Temperature Applications

Profiles are available in HT-UHMW for applications up to 275°F and PTFE (Teflon®) for applications up to 500°F. Glass Manufacturing, Food Processing, Chemical Processing and Bakeries are typical industries that require higher temperature profiles.

Advantages of PTFE Profiles:
  • Operating temperature – 350°F to + 500°F
  • Higher resistance to chemicals, allows operation in harsh environments
  • Very low coefficient of friction
  • Excellent insulating properties for electrical applications
  • Approved for direct food contact

Thursday, July 20, 2017

UHMW-PE Oil Filled

UHMW-PE (ultra high molecular weight polyethylene) is an extremely tough and abrasion resistant thermoplastic that is used for applications that require durability and/or abrasive wear resistance.
UHMW-PE Oil Filled

A subset of the thermoplastic polyethylene, UHMW (aka UHMWPE) is characterized as one of the miracle polymers of the 20th century. UHMW’s host of exceptional attributes such as high abrasion resistance, low coefficient of friction and unparalleled impact resistance, even in cryogenic environments, make it a favorite among engineers and designers in nearly every industry worldwide. UHMW modified to meet particular application requirements through formulations with additives and fillers create special and premium grades with the enhanced desired property.

Oiled filled UHMW is the material of choice for packaging, bottling, and food processing and handling applications requiring FDA and USDA compliance. This advanced product enhances the dynamic coefficient of friction by adding oil filled polymers which helps to lubricate mating surfaces.

APPLICATIONS:Conveying components: bearings, belt guides;Bushings, rollers, gears;Sprockets;Wear strips;Chutes, hoppers;Chain guides.

ADVANTAGES:Corrosion and wear resistant;Vibration resistant;Easily machinable;High chemical resistance;low coefficient of friction;Light weight;Generally FDA and USDA compliant;Good abrasion resistance;Moisture resistant;Good electrical resistance;Self lubricating.

Wednesday, July 19, 2017

PC(Polycarbonate) Machine Grade

The characteristics of polycarbonate are quite like those of polymethyl methacrylate (PMMA; acrylic), but transparency, excellent toughness, thermal stability and a very good dimensional stability make polycarbonate one of the most widely used engineering thermoplastics in applications demanding high performance properties. This amorphous thermoplastic is highly transparent to visible light – it rates highest among transparent, rigid thermoplastics – and has better light transmission characteristics than many kinds of glass.
Polycarbonate


Machine grade polycarbonate exhibits superior impact strength and rigidity over a wide range of service temperatures and is often used for structural applications where transparency and impact strength are essential. Machine grade polycarbonate is stress relieved, making it ideal for close tolerance machined parts.

Clear, standard, and custom colors are available in coated, laminated, twin walled, patterned, or mirrored stock.

A large number of end use applications, i.e.,special grades that provide specific properties or processing characteristics (weatherability, abrasion/ scratch resistance, heat/flame retardance, UV stability, and static dissipation) for polycarbonate are possible by tailoring grades with specific molecular properties and additives during its manufacture. Contact an Emco Industrial Plastics representative who can help you choose the correct material to meet the needs of your applications.

APPLICATIONS:Manifolds;Glazing;Optical components;Industrial equipment and housing components;Electrical insulators and connectors;Medical equipment components;Machine guards, equipment covers;Non-automotive vehicle windows.

ADVANTAGES:High impact strength;Low moisture absorption;Resists acids;Transparent;FDA compliant;Good dielectric properties;Good mechanical and electrical properties;Transparent up to 2″ in special grades.