Optical Products and Abrasive Plastics PVD Screw with Tin Treatment

HVOF Coat Screw

HVO ( High Velocity Oxygen Fuel) Coating process is a kind of  thermal spraying technique that melted ( or heated) mateirals are sprayed into the surface.

Advantages

By HVOF techology,  alloy powder spraying is under high pressure and high velocity. The adhesive force is over 10000PSI, and the powder density can be achieved up to 99.8%, which offers outstanding performancein wear & corrosion resistance.

Application:

 Specially for Halogen-free mateial with below 65% glass fibre filling

Technical parameters

Product Name	Full Coating WC screw
Material	G3 + Tungsten Carbide Alloy Coating
Suitable Machine	Injection / Extrusion / Blowing
Availble size	∮14-80mm, L ∠ 2300MM
Process method	HVOF Spray
Surface Hardness	1100-1400 HV

PVD Coat Screw

PVD (Physical vapor deposition) is characterized by a process in which the material goes from a condensed phrase to vapor phrase and  then back to a thin film condensed phrase. we are using this techology on our Tianium nitrdie coated screws.

Advantages

Physical vapour deposition coating is of high hardness and performa & abrasive plastics processing

Technical Parameters

Product Name	TiN-Coating screw
Material	G3 + TN
Suitable Machine	Injection / Extrusion / Blowing
Avaible Size	∮14-80mm, L ∠ 2300MM
Process Method	PVD Coating
Surface Hardness	2200-2500HV

Parameters of Screw Coatings:

Coating Type	Coating Method	Coating Thickness(mm)	Hardness (HV)	MAX. L (MM)	Application
TiN	PVD	0.002-0.003	2000-2200	1900	Optical product & abrasive processing
Chrome Plate	Electroplating	0.02-.0.08	650-720	6000	Transparent product & corrosive plastics processing
Tungsten Coating	HVOF	1.0-1.5	1100-1400	2300	High abrasive plastics processing