Content :

The spool of AAK hydraulic valve is made of high-grade tool steel with special heat treatment process. The hardness of the spool can reach 65HRC, which is even 7HRC higher than the 58HRC high-quality of the peers. Carson spent more than 2 months in making samples with 7 hydraulic valve factories. The hydraulic flow valves he got were all below 54HRC, while the hardness of AAK valve spool was 65hrc, which solved his urgent need.

At present, the hardness processing for precision parts from many hydraulic valve counterparts can not reach the high index. It seems to be qualified for domestic market, but far away from the high requirements of hydraulic valve products exported to overseas. First of all, these hydraulic valve factories do not have professional and systematic knowledge about how to choose the most suitable alloy steel material. Then, most importantly, the heat treatment is led by the processing plant, because the heat treatment is outsourcing processing, and 20% of the factory changes the processing plant every time, so the hardness can not be guaranteed, not to mention stability. Because of these common faults in the industry, the spool of hydraulic valve shows the problems of easy deformation, fast wear and so on after being used for a period of time.

Carson, a new customer of hydraulic valves in the United States, left a message on our website at the end of 2020. We have been in a continuous interaction, but never had the opportunity to cooperate. Last month, he has an order for a hydraulic flow valve. His customer had a specific requirement of 64HRC for the hardness of the valve spool. He spent more than 2 months with 7 suppliers to make samples, but the hardness of the spool of the hydraulic flow valve still couldn't pass the test. These suppliers of hydraulic flow valve adjusted the material for many times, but the hardness of the valve spool could not meet the standard.