Halffabrikaten
PA
GEHR PA-6 C® (GEGOTEN)
Dit is een hoog-moleculair en spanningsarm PA 6, dat zeer taai gedrag vertoont en is geproduceerd door gieten. Onze ronde staven en platen in natuurlijke kleur voldoen aan de voedselcontactvoorschriften volgens 10/2011/EG.
Eigenschappen
Hoge sterkte en stijfheid
Hoge slagvastheid en kerfslagvastheid
Hoge warmtedoorbuigingstemperatuur
Schokabsorberende eigenschappen
Goede glij- en droogloopwerking
Goede chemische stabiliteit tegen organische oplosmiddelen en brandstoffen
Maatverandering door vochtopname moet worden overwogen
Dimensiestabiliteit elektrische en mechanische eigenschappen kunnen worden beïnvloed door wateropname
Toepassingen
Lagerdelen (goede glijeigenschappen)
Tandwielen
Pompdelen
Glijrails
Rollen (geluidsreductie)
Fittingen
POM
GEHR POM-C®
De continue bedrijfstemperatuur van deze technische kunststof ligt tussen -40 °C en +100 °C. Vanwege de taaiheid in combinatie met een hoge dimensionale stabiliteit is er geen neiging tot spanningsscheuren. Het copolymeer heeft een hoge thermische stabiliteit en chemische weerstand. Vooral de verhoogde hydrolytische stabiliteit en weerstand tegen contact met veel oplosmiddelen moet in overweging worden genomen. Dit materiaal wordt vaak gebruikt in toepassingen in de voedingsindustrie omdat reinigingsprocessen weerstand tegen het gebruik van heet water of verschillende chemische middelen vereisen. Onze ronde staven en platen in natuurlijke kleur voldoen aan de voedselcontactvoorschriften volgens 10/2011/EG.
Eigenschappen
Drukgeteste kwaliteit
Hoge sterkte en stijfheid
Hoge stijfheid (tot -40 °C)
Hoge thermische stabiliteit
Lage wateropname
Hoge dimensionale stabiliteit
Goede elektrische isolerende eigenschappen
Zeer goede glijeigenschappen
Hoge oplosmiddelbestendigheid
Zeer hoge weerstand tegen spanningsscheuren
Toepassingen
Lagerelementen
Fittingen
Tandwielen
Onderdelen voor pompen
Schroeven
Spoelen
Onderdelen voor de textielindustrie
Draagconstructies voor coatinglijnen
Voedingsindustrie
Componenten in medische technologie en fotovoltaïsche toepassingen en de elektrotechniek
Onderdelen voor filtratiesystemen
Reactorbehuizingen
Afdichtingsschijven (meestal gemaakt van gekalanderde platen)
PET
GEHR PET®
Polyethylene terephthalate is a semi-crystalline material from the polyester family of plastics and, due to its good thermal and mechanical properties, is counted among the polymer group of engineering plastics. It has a high surface hardness and good sliding and wear behaviour.
The mechanical properties of PET are hard, stiff, strong and tough and are approx. 10 % higher than those of the similar PBT. The good sliding properties and the high dimensional stability also open up a wide range of possible applications. Good results can be achieved in joining processes with two-component adhesives on the basis of e.g. epoxy resins or cyanoacrylates as well as silicones, for example. It is also possible to paint the components. High vacuum coating of the component surface is also possible. The continuous operating temperature ranges between approximately -20 °C and +100 °C. Like all polyesters, PET is also not resistant to hot water (from approx. +60 °C) in the long term.
Eigenschappen
High mechanical resistance and tensile strength
High creep resistance
High surface strength
Easy to varnish and polish
High dimensional stability
High toughness
Good insulations for electrical properties
High chemical resistance
Easy to lacquer
Limited dielectric properties
Sensitive to hydrolysis
Toepassingen
Bearings
Pumps and parts for housings
Frame components
Tank lids
Gear wheels
Insulators for the electrical engineering
Deflection rollers for the filament industry
Levers
Handles
Control discs
PEEK
GEHR PEEK®
Polyetheretherketone can be used at very high temperatures (about +260 °C) and it shows an extraordinary mechanical strength, toughness, hardness, flexural strength, torsional strength. PEEK exhibits excellent chemical resistance, very good dielectric properties up to +260 °C and a very good resistance to all kinds of radiation (even ultraviolet rays only lead to a slight yellow discolouration). PEEK is self-extinguishing properties according to UL 94.
Eigenschappen
Very high mechanical strength
Very high rigidity (also at low temperature)
Very high thermal stability
Very high creep resistance
Very high dimensional stability
Very high radiation resistance
Very high hydrolysis resistance
Relatively low notch impact strength
Low resistance to acetone
Toepassingen
Bearing shells
Piston rings
Valve seats
Gears
Seals
Aviation
Cog wheels
Pump vanes
Fittings
Plug connectors for the chromatography
Wafer carriers
Semiconductor industry
PVDF
GEHR PVDF®
Polyvinylidene fluoride shows a higher tensile strength, pressure resistance and dimensional stability than the related PTFE, but friction and insulation properties are lower. PVDF has a high mechanical strength and toughness at lower temperature and it’s self-extinguishing. The operating temperature ranges from -30 °C to +150 °C. PVDF shows a high resistance to chlorine, bromine and high-energy radiation.
Eigenschappen
High tensile strength
High mechanical strength
High rigidity (also at low temperature)
High chemical resistance
Very low water absorption
Good friction and wear and tear values
Self-extinguishing
High UV-resistance
Toxic fumes when burned
Relatively high coefficient of thermal expansion
Toepassingen
Gaskets
Pump and sealing bodies
Rotation discs
Valves
Check valves
Extraction centrifuges
Fittings
Slide rails
Gear wheels, guide rails and wheels
Adapters
Components in the electrical industry and medical technology
Dosing stations, filter frames, flanges and sleeves
Roller conveyors, adjusting clamps
PC
Transparent polycarbonate sheet is virtually unbreakable with extremely high impact resistance and offers high temperature performance too. POLYCARBONATE CLEAR provides designers, specifiers, and architects with possibilities to use transparent polycarbonate sheets in applications where high clarity and optical performance is required. The consistent high-quality demands from the market helps to improve machining, screen printability and thermoformability.
Toepassingen
machining protection
safety glazing
ice hockey rinks
vandal protection
signs
displays
riot shields
windows
medical equipment
bicycle helmets
Barrier products
Applications
PETG
High impact transparent sheet. The product is easy to fabricate and thermoform without pre-drying offering faster cycle times hence cost saving. The product offers high definition on thermoforming and clarity on cold and hot bending. Can be used in point of sale and point of purchase applications, for applications where food contact is required (without UV). Sheet also offers excellent colour range, UV protected product and also the unique frosty (satin) look.
Toepassingen
Indoor and outdoor signs
shelving and racking systems
food displays/bin/dividers
thermoformed cover
vending machine faces
medical equipment (packaging etc)
industrial equipment (machine coverings, machine protections and many different kinds of technical parts)
HMWPE & UHMWPE
GEHR PE-UHMW®
In the group of polyolefins, the homopolymeric Polyethylene-Ultra-High-Molecular-Weight stands out for its very low density, very good sliding properties and at the same time high toughness. The chemical resistance is very high. Due to the very low dielectric loss factor, high-frequency welding is not possible. However, all other appropriate welding procedures should work without problems. The continuous operating temperature for PE-UHMW ranges between -150 °C and approximately +90 °C. Our round rods in natural, black and blue colour comply with the food contact regulations according to 10/2011/EC.
Eigenschappen
Low density
Very good wear resistance
Very high abrasion resistance
High toughness (also at low temperature)
High elongation at break
Very good electrical and dielectric properties
Very low water absorption
Low steam permeability
High chemical resistance
Good protection against stress cracking
Food safe
Toepassingen
Pumping and valve parts
Gaskets
Slide profiles
Parts for the food industrys
HDPE
GEHR PE-HD®
The homopolymeric Polyethylene High Density has a very low density combined with high toughness. Due to its good chemical resistance, PE-HD is insensitive to most acids, bases, many organic solvents and hot water. The material is a good electrical insulator and, apart from high-frequency welding, can shows good weldability. The continuous operating temperature for PE-HD in natural colour ranges between -50 °C and approximately +90 °C.
Eigenschappen
Low density
High toughness (also at low temperature)
High elongation at break
Very good electrical and dielectric properties
Very low water absorption
Low steam permeability
High chemical resistance
Good protection against stress cracking
Food safe
Soft surface (low tensile strength)
HF welding not recommended
Natural color is not weather resistant
Toepassingen
Transport containers
Pumps and valve parts
Parts in the tank construction
Components with medical applications
Gaskets
Sliding profiles
Components for the food industry
Components for biogas plants
Components in the oil production industry
PVC
Rigid PVC, normal impact strength, chemical resistance
Eigenschappen
Proven material made of PVC-U
Chemical resistance
Proven track record in tank and chemical equipment construction
UV-stabilised and weather resistant (PVC-CAW-UV)
High rigidity
Extensive standard range of products
Toepassingen
Chemical installations
Livestock farming and agriculture
Pharmaceuticals and bioindustry
Structural engineering
Swimming pool construction
PVC HS
Coextruded PVC foam sheet, UV-stabilised, antistatic, outer skins white, with white core
Eigenschappen
Antistatic
UV and weather resistant
High dimensional stability
Excellent processing characteristics
High-quality appearance
Toepassingen
Livestock farming and agriculture
Shipbuilding
Signage, display and exhibition stand design
Stadium construction
Structural engineering
Swimming pool construction
HARDPAPIER
Laminated plastics, on the one side, consisting of different paper and cotton fabrics as base material as well as of particular phenolic resin types. These materials are used for parts within oil-filled transformators, some of them for high voltage duty, for machining parts for mechanical engineering purposes,when outfitted with solid lubricants to be used for friction bearings.
Laminated plastics, on the other side, consisting of glass fibre fabrics or heavy roving fabrics as base material as well as of modified epoxy resins, be it as standar materials or as special materials with particular properties like high temperature endurance, high resistance against tracking, specific combustion behaviour according to UL or to DIN EN 45545-2. Our products do not contain flame retardants based on halogenes. Manufacturing is carried out according to DIN IEC 60893-3-4
TUBES
Laminated plastics out of a range of different base materials and thermosetting resin systems. These plastics are used for manufacturing electrical machines, for friction bearing purposes, for roller bearing cages, as insulating materials and, in general, as a material for manufacturing parts of many different types. DIN IEC 61212-3-1
RODS
Laminated materials out of cotton fabrics and paricular phenolic resin types. DIN IEC 61212-3-1
Elke transparante kunststof heeft zijn eigen unieke eigenschappen.
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