stellite_2019_12_14_2

Application of Stellite produced by HY-Industry in the valve industry

(HY-industry technical centre)

 

Automobile intake and exhaust valves are the key components of the engine. The quality of the automobile directly affects the main performance indicators such as engine power and fuel consumption, which greatly affects the reliability of the engine.
Highest temperature during valve operation is on the end face and neck of the valve disc. These parts require high thermal strength and good corrosion resistance.
Conical surface of the valve disc in contact with the valve seat is another dangerous area for the valve. This area has very high requirements for comprehensive performance such as resistance to thermal corrosion, thermal fatigue, and thermal wear.
Both the valve stem and the end belong to the thermal wear zone, which requires superior wear reduction and wear resistance.
Exhaust valve has a particularly harsh working environment. The local maximum temperature during operation can reach 800 ~ 900 ° C. When the valve is seated, it bears a large impact load. For the valve, it also has to withstand high-speed flushing of exhaust gas. Under working conditions, the valve is often deformed, corroded, burned, the valve seat is worn, and the valve is broken.
Cobalt-based self-fluxing alloy powders play an increasingly important role in the automotive valve industry due to their good heat resistance, thermal shock resistance, wear resistance, corrosion resistance, creep resistance, and cavitation resistance.
Shanghai HY Industry Co., Ltd, as a leading domestic cobalt-based alloy powder company, has been committed to the research and development and promotion of materials suitable for valve industry cone surface and valve rod head overlay welding. Now our company provides the following materials and processes:

Grade

product type

product process

HY-Stellite1

Casting rod/alloy powder

Oxyacetylene/plasma

HY-Stellite6

Casting rod/alloy powder

Oxyacetylene/plasma

HY-Stellite6H

alloy powder

plasma

HY-Stellite12

Casting rod/alloy powder

Oxyacetylene/plasma

HY-Stellite12YJ1

alloy powder

plasma

HY-StelliteF

alloy powder

plasma

HY-StelliteFH

alloy powder

plasma

HY-StelliteFS

alloy powder

plasma

HY-Stellite158V

alloy powder

High frequency remelting

HY-Stellite156

alloy powder

plasma

At present, these products are widely used in automotive valve industry customers, supporting Audi, Ford, Volkswagen, Toyota and other auto manufacturers. The quality and stability of the products have been unanimously approved by customers and auto manufacturers.

HY-industry is qualified  Nickelalloy&cobalt alloy materials supplier.

We have more than twenty years experience in kind of High temperature alloy production.

Inconel 718, Monel 400,Stellite 6,Stellite 12,Incoloy 800ht,Incoloy 901,Nimonic 80A,Kovar,Invar 36,Inconel 625,Hastelloy C276, Incoloy 825 are mature productes of us.

When you want to know more about our products, please contact us:

https://hynickelalloy.com