Valve, valve, is an important part of the engine. The function of the valve is to specifically input air into the engine and exhaust the burned exhaust gas.

    From the structure of the engine, it is divided into an inlet valve and an exhaust valve. The function of the intake valve is to draw air into the engine and mix and burn with the fuel; the function of the exhaust valve is to discharge and dissipate the burned exhaust gas.

    The material of the valve is generally divided into five types: 40Cr, 4Cr9Si2, 4Cr10Si2Mo, 21-4N and 23-8N. 5Cr8Si2, 4Cr9Si3, 21-2N, 21-12N, 23-8N, XB, etc. have been used in large quantities on some imported models. High-temperature nickel-based alloys are also being used on high-load engine exhaust valves.

    Classified from the finished structure of the valve, it is usually divided into a whole valve, a double metal butt welding valve and a hollow sodium filling valve.

    The additional process is usually top soldering, top surfacing, cone surfacing, surface nitriding, surface chrome plating, and the like.

    Its function is to be responsible for inputting fuel into the engine and exhausting the exhaust gas. The conventional engine has only one intake valve and one exhaust valve per cylinder. This design structure is relatively simple, the cost is low, the maintenance is convenient, and the low speed performance is good. It is difficult to increase the power, especially at high speeds, the charging efficiency is low and the performance is weak. In order to improve the efficiency of intake and exhaust, multi-valve technology is now used. It is common to have 4 valves per cylinder (there are also single-cylinder 3 or 5 valve designs, the same principle, such as the Audi A6 engine), 4 cylinders. It is 16 valves. The “16V” we often see on the car data indicates that the engine has a total of 16 valves. The multi-valve structure is easy to form a compact combustion chamber, and the injector is arranged in the center, so that the oil-gas mixture can be burned more quickly and more uniformly, and the weight and opening of each valve are appropriately reduced, so that the valve is opened or closed. faster.

New valve rod end drilling machine

   This device is suitable for drilling holes before the valve stem ends are welded. The drill bit is homemade.

   This device can be customized.

main feature:

   1. Mitsubishi system, Siemens system, FANUC system are available.

   2. Man-machine interface, easy to operate.

   3. Servo drive. Use a high speed electric spindle.

   4. The drill bit is a self-made drill bit.

   5. Equipped with automatic loading and unloading system, efficient, fast and safe.

   6. Electrical components and pneumatic components are well-known brands to ensure quality.

   7. Except that the loading and unloading part is exposed, the other parts are fully enclosed structure, which is safer and the working environment is cleaner.