This product is the core part of a medium speed marine diesel engine authorized by man B-W company. It is the first company in China to pass the license production certification of L23 / 30h diesel engine piston of man B-W company. Material QT700-2. Weight 22kg. The rotating speed is 900. The wall is thin, the inner cavity is complex, and the casting and machining are difficult. 300 sets are supplied to the main engine factory every year.
Sand casting is a metal forming process. First, a three-dimensional sand mold is formed, and then the molten metal is poured into the cavity of the sand mold for solidification. After the metal parts are cooled and formed, remove the sand shell. Some sand castings need post processing after casting. Sand casting can produce all kinds of metal materials, including cast iron, special alloy steel and so on. Sand casting is an economical and highly efficient technology, which can flexibly adapt to the requirements of size and structural design. Sand castings usually need secondary processing to improve the accuracy of products.
Marine diesel engines, such as MAN, DAIHATSU, YANMAR, etc. Train internal combustion engines, such as GE, EMD, CRRC, etc.
There are 46 patents related to the research and development of green environmental protection equipment and the manufacturing process of pistons, superchargers, wheels and other products. In 2021, he joined the Changzhou Intellectual Property Strategy Promotion Plan and signed a project contract.
1. What is your company's procurement system?
Modern procurement management system, centralized bidding procurement of bulk materials, planned procurement.
2. What are your company's suppliers?
Benxi Iron and Steel, Maanshan Iron and Steel, Nanjing Iron and Steel. . .
3. What is the standard of your company's suppliers?
Delivery on time, quality meets requirements, and reasonable price.