Valve body and bonnet leakage treatment methods

1, cast iron casting quality is not high, the valve body and the valve body with trachoma, loose tissue, slag and other defects 2, the day cold cracking; 3, poor welding, there is slag inclusions, welding, stress cracks and other defects 4 , Cast iron valve is hit by heavy objects after the damage to the exclusion method: 1, improve casting quality, strictly in accordance with the provisions of the pre-installation strength test; 2, the temperature of 0 Â° and 0 Â° below the valve should be incubated or mixed heat, stop using The valve should exclude water. 3, the weld consisting of the valve body and valve cover should be carried out according to the relevant welding procedures, after welding should be carried out testing and strength testing; 4, the valve is prohibited to push heavy objects, not allowed to use hand hammer impact on the cast iron And non-metallic valves, large-diameter valve should be installed bracket

Auto Gear Box Parts

Auto Gear Box Parts
1. Auto Gear Boxes Used for car parts, our gear box parts can use in BMW,Range Rover,Benz directly( TS 16949 Certified).
2. As customers' requirements, in perfect condition.
3. Aluminium casting, sand casting, die casting, gravity, low pressure die casting, high pressure die casting, casting foundry.
4. Applied software for specification drawings: Pro/E, Auto CAD, Solid work, CAXA UG, CAD/CAM/CAE.
5. Precision machining: CNC, milling machine, drilling machine, numerical lathe, all types of lathe.
6. Surface finish process: polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, mirror polishing.
7. OEM&ODM service available.
8. Top quality and quick delivery time.

Auto Gear Boxes Advantage:
1. Size precision, smooth surface, high production efficiency.
2. Different surface treatments.
3. Advanced equipment, excellent R&D teams and strict quality control system.

We are the top manufacturers in Ningbo can supply OEM service for Auto Gear Boxes. Welcome to contact us!

Auto Gearbox,Die Casting Gear Boxes,Aluminum Auto Gear Box Parts,Aluminum Auto Gear Box Housing

Ningbo WEIBO Molding&Machine Co.,Ltd. , https://www.diecasting-manufacturers.com