Diesel Engine Valve Exhaust Valve Isuzu 4HL1N intake & exhaust
Engine Valve Style:
|Product name||Diesel Engine Valve Exhaust Valve Isuzu 4HL1N intake & exhaust
|Quality guarantee||12 months|
|Package||1.Neutral packing 2.Our Brand Package 3.Customer Logo Printed|
|Transportation||Sea or air transportation|
|Port of shippment||Guangzhou,Guangdong|
|Payment terms||L/C at sight,T/T,Western Union|
|Leading time||3-7 days|
Engine Valve Materials:
1, Engine valves are one of the components in internal combustion
engines that are highly stressed. The need for reliable engine
operation dictates that engine valves be capable of exhibiting
resistance to repeated and continuous exposure to high temperature,
high pressure from the combustion chamber, and mechanical loads and
stresses from the engine dynamics.
2, The intake valves on internal combustion engines are subjected
to less thermal stress because of the cooling effects of the
incoming air/fuel mixture that passes by the valve during the
intake cycle. Exhaust valves, by contrast, are exposed to higher
levels of thermal stress by being in the pathway of the exhaust
gases during the exhaust cycle of the engine. In addition, the fact
that the exhaust valve is open during the exhaust cycle and not in
contact with the cylinder head means the smaller thermal mass of
the combustion face and valve head has a greater potential for a
rapid temperature change.
3, Intake valves, because of their lower operating temperatures,
are typically made of materials such as chrome, nickel, or tungsten
steel. The higher temperature exhaust valves may use more
heat-resistant metals such as nichrome, silicon‑chromium, or
Valve faces that are exposed to higher temperatures are sometimes
made more durable by the welding of Stellite, which is an alloy of
cobalt and chromium, to the valve face.
4, Other types of material used for the fabrication of engine
valves include stainless steel, titanium, and Tribaloy® alloys.
In addition, coatings and surface finishes can be applied to
improve the mechanical properties and wear characteristics of the
engine valves. Examples of this include chromium plating, phosphate
plating, nitride coating, and swirl finishing.
Isuzu 4HL1N 398130.5 EX 378130.5 engine valve photos:
1- Raw materials:
We only use highest quality primary 21-4N,4CR9SI2 and 40CR.
2- Complete Tests:
The cylinder heads unitary pass by leak test of valves, for water
circuit pressure test and oil circuit pressure test.
Checks controls on the machining are made across different steps of
the manufacturing process and the results are automatically
compared to the specifications registered in our systems.
Finally, in a unified way, a visual check of the entire piece
before packaging is made.
3- ID System:
We have implemented a system of identification and trace-ability of
our products, which makes possible to correctly identify and
separate each and every one of our engine valve.
We also supply Mitsubishi, Toyota, Nissan,Komatsu,Hino,Cummins, ,
Hyundai,Deutz,Steyr engine cylinder head with high quality and fast