24.05.2012 | Observations from Shanghai - Chinaplas 2012
23.05.2012 | Plastic products must now meet higher requirements. In particular, standard plastics reach very quickly their temperature limits odolnosti.Cenovo effective alternative to expensive high-performance durable plastic is radiation cross-linking.
21.05.2012 | PLASTCOM® successfully passed the certification audit by TUV Nord and defended its management systems ISO 9001:2008 (Quality Management System) and ISO/TS 16949:2009 (Quality Management System with application in the automotive industry).
18.05.2012 | We will be glad you met on 17 May the Envirofilm in Kosice and 19 May in the Water Museum in Bratislava
17.05.2012 | Slovak plastics cluster (SPK) invites you to the first seminar of the series "Trends in the plastics industry", which will be held on 13 June 2012 at Brezina in Trencin. Seminar mediates interesting technical issues that professionals in the plastics industry will certainly use in practice.
16.05.2012 | PlasticPortal.eu ® - Media Partner Fair MSV Nitra would like to invite you to visit our stand on 22.-25.5.2012. You can find us in hall M4 stand No 30. Companies also publish invitations have been sent to the editors
VÚHŽ a.s.
Tools and molds with coating CVD and PA CVD COATING CENTER. Production and coating big assortment of tools for pressing, forming, sliting, cutting and upending in cold.
Dobrá, 739 51, CZ
telephone: 558 601 111
fax : 558 601 211
e-mail: vuhz@vuhz.cz
Tax Identification Number DIÈ: CZ27768953
VAT Identification Number IÈ DPH:
Tools production
We produce tools mainly for high-speed and tool steels, including steel smade by powder metallurgy.
Production:
- according to the COATING CENTER production catalogue
- according to the production documentation provided by the customer
Coating
COATING CENTER coatings:
- PA CVD technology (plasma assisted chemical vapour deposition) - NEW!!!
- CVD technology – TiCN, TiC, TiN coatings
- Multi-layer sandwich-type coatings, e.g. with sliding layer
- On tools supplied by the customer
- We supply tools also without coating – heat treated and polished
- We ensure production and coating of tools made of hard metals
Coating of tools with use of PA CVD and CVD method:
METALTEST PA CVD coating is possible to use by applications, where it is not possible to use CVD technology by reason of high temperature of coating. CVD coating is engaged in 1000 °C, PA CVD in 500 °C.
CVD coatings fulfil high requirements to quality, particularly resistance to abrasion, long service life, hardness. Selection of an optimum layer is determined by processed material and working conditions of the tool.
Characteristic and advantages of CVD and PA CVD coatings:
Compact coatings of TiC, TiN and TiCN applied on tools made mainly from high-speed compact and powder steels at high temperatures of approx. 1000°C.
Coatings can be applied on tools up to the diameter of 1000 mm and lengths of 2000 mm (the pieces, the weight of which exceeds 5 kg must be assessed individually) .
Thickness of coating 2 - 20µm depends on purpose of use of the tool.
Hardness of tools with CVD coating – up to 68 HRc (depending on material used for manufacturing of the tool).
Service life of tools with CVD coating is approx. 5 – 15 times higher in comparison with tools without coating, and 3 – 5 times higher in comparison with tools with PVD coating.
High resistance to wear of tools.
Increased productivity of labour.
Higher use of machine time.
Possibility of increasing cutting speed.
Extension of intervals between sharpening.
Enhancement of quality of finish of machined components.
Very good friction characteristics – reduction of friction at machining.
Thermal insulation effects (reduction of transfer of heat generated on cutting edge into the tools body).
High surface hardness.
Prevention of creation of „build-ups“ on edges.
Elimination of breaking off of tool edge.
Applications:
CVD coating
Coatings are designated particularly for tools for cold work
- Shearing tools – e.g. piercing punches
- Pressing and forming tools
- Extrusion tools
- Cutting tools
- Trimming dies for production of bolts
- Blades for cutting of wire and steel strips
- Stamping dies (marking of metallic parts)
- Punches
- Dollies a snap sets
- Extrusion dies
- Other applications, mainly for tools with high resistance to abrasion,
high surface hardness and long service life.
PA CVD coating
- for the firms which inject under pressure aluminium, plastics, gum to the moulds (coating of the moulds and next components of the inject device) - there is a decrease of gluing of aluminium to mould
- precise press tools
- cutting tools
- shearing tools
- sizing tools
- application of anticorrosive coatings
We perform:
Application of coatings on tools made of high-speed steels and selected tool steels, as well as high-speed steels prepared by powder metallurgy.
Application of coatings on tools made of hard metals.
Other services
Removal of coating from used tools:
- we remove the used coating chemically without impacting material surface of the tool
- grinding, polishing and re-coating of tools – regeneration of used tools
- precise 3D (optical) measurement of geometry of tools, including coated or
machinery parts
- preparation of drawing documentation for production of tools (CAD)
Consultancy:
- selection of the moist suitable type of material for the given type of tool
- selection of an optimal coating for the given application
- evaluation of chemical composition and thickness of unknown coating, which
you use at present
- evaluation of properties of tools and processed metallic tools, including their
chemical and structural analysis
- determination of causes of poor service life pf tools and proposal of appropriate
measures to be taken.
02.01.2012 | VÚHŽ Company SpA introduced a new type of coating for plastics - NANOCOMP P coating technology applying PA CVD. The coating is designed for coating injection molds,nozzles cutting tools and dies for subsequent...
+421 911 264 141
