Product Attribute:
surface treatment:Nitration,Nitrided chromed and polish Stellited
Certification:ISO9001
Material:4Cr
4Cr9Si2:21-4N
EN 52:SHU3 etc.
Temperature:High Temperature
OEM:offered
Service:Custom Fabrication Services
Color:original
Media:gas
Power:hydraulic
Pressure:high pressure
Sample:free sample freight collect
Structure:control
Head:with customer logo
Applicationt: 
Hongfa
Production Description:
Mitsubishi Engine Valve
Our company has been manufacturing inlet and exhaust engine valves for all kinds of gasoline and diesel engines with the experience of 23 years.
1.We can product the following engine valves:
1).Train series engine valve
2). Car exhaust valve
3).Motor series engine valve
4).Truck series engine valve
5).Marine series engine valve
6).Racing car engine valve
7).Tractor series engine valve
2.Production equipments:
We have advanced production equipment,such as: Profile Grinder, Resistant Welder, PTA Welder, Friction Welder, Chrome Plating line, Salt Bath Nitriding, Electrical Upsetting Machine, Mesh belt furnace for Heat Treatment, Profile Induction Harding Machine.
3.Inspection and Test equipment:
Impact Tester, Tensile Tester, Optical Microscope, Cylindricity Equipment, Bruker, Roughness Tester, Sale Corrosion Test Chamber, Scanning Electronic Microscope, Valve Seat Wear Test Rig, Optical Valve Measurement System, High Speed Carbon,Sulfur Analyzer,etc.
4.Production technology:
The mian production technology are Hollow sodium-filling valve, Stellited valve, Small end welding piece valve, Tuffrided valve, Hard chrome plated valve,etc.
5.The regular treatment:
Nitrided: valves are nitrided to increase the exhaustion strength, corrosion- and wear-resistant
Chrome-plated: valve stems with chromium to increase wear-/corrosion-resistant of stem
Stellite (seat hard faced): valves made by using deposit of stellite to get high hot hardness at seat
Bimetal: valve made by joining together two different valve materials by friction welding wherein high hot hardness alloy steel is used at head and stem made from a upright mechanical properties steel.