Knowledge

The chrome hardened bar can be applied to the hydraulic starting when it is used. The processing requirements of the product are relatively high, so the quality of the hydraulic cylinder is mostly the

1. Check the quality of the piston and connecting rod is the same multi-cylinder diesel engine. The difference of the quality of each piston should not exceed lOg; the quality of the connecting rod sh

The quality of the chrome plated steel rod processing technology will directly affect the quality of the piston rod and its service life. The processing of the piston rod is generally performed by rol

Chrome plated steel rods in the work and production requirements according to different situations need to go through different processing techniques, quenching and plating and plating methods are two

The requirements of the chrome steel rod for each part:

The processing steps of honing the rolling tube:

Cold drawn tubes and welded tubes are very different and related. They are a type of steel tube, but they are still difficult to distinguish. They look very similar, but their production methods are d

Cold drawn tubes are more elaborate in processing, and if there is a problem, different effects will appear. Is it necessary to perform shot blasting when the cold drawn tube is made?

Cold drawn tubes also need to be cleaned during use and maintenance. Cleaning cold drawn tubes can make cold drawn tubes relatively clean and hygienic, and play a more important role in the way of use

I believe that the steel pipe has a clear concept in mind, but if we want to obtain a seamless pipe with smaller size or better quality, we must finally cast a cold drawn steel pipe through cold rolli

The seamless cold drawn pipe manufacturing process is generally divided into the following two types:

The first stage is the shedding cutting stage. At the beginning, due to the rough wall of the hole, the contact area between the oil stone and the hole wall is small, the contact pressure is large, an