coating technology hard material coatings · and aluminium alloys • tin (titanium nitride) e.g....
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Hard material coatingsCoating Technology
PVD - coatingsPACVD - coatings
Coatin
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Distributor spindle (TT®- DLC)
PVD (Physical Vapour Deposition) is the physical deposition of thin layers through the vapour phase. This process creates coatings with a high proportion of covalent bonds of the layer atoms.
PACVD
(Plasma Assisted Chemical Vapour Deposition) method is a further development of the CVD technique and com-bines the benefits of the PVD and the CVD methods. In the PACVD process, a physical vapour deposition takes place by a chemi-cal reaction through the gas phase at temperatures below 180°C with specific plasma assistance.
PVD coating of high-precision tools and high-quality components in-creases properties such as hardness and thermal and chemical stability. At the same time, properties such as friction coeffi cient, cold welding tendency, bonding and adhesive tendency, corrosion tendency and oxidation tendency are signifi cantly lowered.
Our high-tech coatings have been used in all sectors of industry since 1988.
We have satisfied customers in the
• Automotive industry
• Medical technology
• Aerospace industry
• Electrical industry
• Textile industry
• Machine-building industry
• Tool industry
successful customers are our success
Hardening technology - Nitriding technology - Coating technology with HIGH-TECH KNOW-HOW in application system
Plastics Technology
Our PVD coatings offer the following benefits in plastics technology:
• High level of wear protection of structured tools, also protection against damage to polished surfaces
• Improved ejectability• Faster filling => shorter cycle time
• Less cleaning effort through reduced plastic coats on the mould
• Increased production reliability
• Improved surface finish of the plastic parts
• Reduced warping of plastic parts
We recommend the following coatings for your various plastic applications:
• TiN (Titanium nitride) e.g. for polyamide
• Cr2N (Chromium nitride) e.g. for polysulphone
• TiCN (Titanium carbonitride) e.g. for plastic masses with > 30 % glass fibre
• TT®
-DLC (amorphous materials) e.g. slides and ejectors
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Plastic mould for IT industry (TiN)
Threaded spiral cutter (TiN)
Plastic mould for IT industry (TT®- Cr2N )
Hardening technology - Nitriding technology - Coating technology with HIGH-TECH KNOW-HOW in application system
Forming and Punching
Our PVD coatings offer the following benefits in forming and punching technology:
• Low cold welding tendency
• Considerably longer tool life
• No adhesion and cold welding
• Optimized flow behaviour
• Clean cuts, thus reducing re-works of the components
• Reduced friction co-efficiency, thus lower punching and retraction forces
We recommend the following coatings for your various forming and punching applications:
• CrN (Chromium nitride) e.g. for copper alloys and aluminium alloys
• TiN (Titanium nitride) e.g. for unalloyed steels
• TiCN (Titanium carbonitride) e.g. for medium and high-alloy steels
• Calida®
F (aluminium-chrome nitride) as an alternative to CVD coatings
4Hardening technology - Nitriding technology - Coating technology with HIGH-TECH KNOW-HOW in application system
Stamps and dies for the automotive industry
Punches for the automotive industry
Cutting tools for the automotive industry
Machining
For the use in chip removal our range of appli-cations of PVD coatings show the following advantages:
• Considerably longer tool life
• No material accumulation on the cutting surface
• Temperature dissipation into the chips
• Higher cutting parameters
• Dry machining possible
• HSC machining possible
We recommend the following coatings for your cutting tools:
• UniPlus®
DC (TiAlN) e.g. for dry work and high-speed machining operations
• Calida®
PD (AlTiN) e.g. for drilling
• Calida®
T (AlTiN) e.g. for heavy duty chip removal
• UniCut® (TiAlCN)
e.g. for machining of titanium alloys
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End milling cutters (UniPlus®
DC)
Drills (Calida®
PD f)
Cylindrical milling cutters (Calida®
T)
Hardening technology - Nitriding technology - Coating technology with HIGH-TECH KNOW-HOW in application system
Tribological Coatings for Tooling
We offer the much preferred application of TT ®-WCC® and TT ®- DLC coatings for tool making, mould and die production and aluminium chip removal.
TT ®-WCC® is a wolfram-doped, amorphous, diamond-like carbon coating and shows itself to be quite dif-ferent, particularly resulting in lower amounts of friction, and a good elastic behaviour throughout. As a result of the lower coating temperature (<180°C), also components with a low annealing temperature can be coated without the base material being af-fected. TT®-DLC is a metal-free diamond-like carbon coating, with lower temperatures through the isolated PACVD- process. TT ®- DLC is an ideal surface finishing for tribological heavy-duty components and tools due to the combination of high wear resistance and out-standing friction and non-stick properties.
Coating system
Colour Manufactur-ing process
Micro hardness(HV 0.05)
Coefficient of friction
on steel* to-wards 100Cr6
TT®
- WCC® black-
greymagnetron sputtering 1,500 0.20
TT®
- DLC black-grey PACVD
2,000 -3,500
< 0.15
MoS- glide® black-
greymagnetron sputtering 300 < 0.05
* Measured with pin-on-disc tribometer (DIN 50324)
Test parameter: non-lubricated, T= 23 ± 1°C, r.F = 50 ± 5 % (steel against steel: μ = 0.6-0.9)
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Distributor
Ejection element
Milling cutters for AL machning (TT®
- D LC )
2μm
REM image of TT®
- DLC®
-coating
substratetransition layer
intermediate layer
surface layer a-C:H
Hardening technology - Nitriding technology - Coating technology with HIGH-TECH KNOW-HOW in application system
Service Performances
We guarantee your success - not only through our daily achievements in hardening and surface technology, but also through our wide range of services:
• Pick-up service through our own fleet
• State-of-the-art laboratory equipment
• Material analysis
• Structural analysis
• Hardness testing acc. to Rockwell, Vickers and Brinell
• Coating analysis
• Coating thickness measurement through calotte grinding and X-ray fluorescence
• Coating adhesion acc. to VDI guideline 3198
• Micro hardness measurement
• Roughness measurement
Appropriate are hardened tool steels or steels that have been plasma-nitrided by with annealing temperatures above 500 °C, as well ashard metals.Please ensure that the tools have been given pre-liminary heat treatment suitable for coating in or-der to prevent changes in structure, in hardness and in dimensions. Coating processes below 200 °C are available on request.
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PVD/PACVD equipment
Our pick-up service
Chipping test for the quality control of our layers
Hardening technology - Nitriding technology - Coating technology with HIGH-TECH KNOW-HOW in application system
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UniCut ® = Trade Mark of Fraisa (Switzerland)
Improx®/ UniDur® / UniNox® / UniPlus® / UniTwin® / TT® / WCC®/ Calida® = Trade Marks of H-O-T Härte- und Oberfl ächentechnik GmbH & Co. KG (Germany)
photography & design: www.fi namedia.de
H-O-T Vertriebs- und Logistik-Center GmbH & Co. KG
Kleinreuther Weg 118 Phone: +49(0)911 - 36014-42 Fax: +49(0)911 - 36014-25 [email protected]
Our centers in Germany
Nürnberg (4 x) 04626 Schmölln-Nitzschka 59457 Werl 73095 Albershausen 96155 Buttenheim
97766 Memmingerberg
Our center in Turkey
16250 Bursa
Hardening technology Nitriding technology Coating technology
Vacuum hardening Plasma-nitriding PVD/PACVD coating
Induction hardening Gas-nitriding High-performace coating systems
Controlled atmosphere
hardening
Oxidizing Tribological coating systems
˙ in gas UniTwin® - combination systems
˙ in plasma
Improx® -oxidizing
Service
Laboratory (analyses, sample tests)
Consulting (materials, layouts)
Pick-up Service (with own feet)
HHIIGGHH-TTECH KNOOOWW--HHOOWW iinn aappplicationn syysstteemms
2007
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-O-T
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