| Message: | Felix is the purchaser of a hydraulic valve company in Germany. Some time ago, he wanted to purchase a batch of hydraulic flow valves with valve spool hardness of 65HRC. He had consulted more than 30 manufacturers in a month (with great perseverance). Only two hydraulic valve manufacturers said that 58HRC is the limit, and the rest had no sound at all. Felix couldn't resist the pressure of customers urging goods every day and was ready to give up the order. His boss was unhappy after hearing it, so his pressure was even greater.
Felix accidentally saw an article about 65HRC valve spool of AAK hydraulic valve when browsing some B2B websites. Realizing that maybe AAK hydraulic valve could bring him good luck, Felix directly asked by email whether we could produce hydraulic flow valve with valve spool hardness above 65HCR. We replied that we need to know the working scene of your hydraulic flow valve and the drawings before we judged.
It is not the first time for AAK hydraulic valve to receive consultation on the hardness of valve spool. Some hydraulic valve manufacturers can not solve the problem of hardness because of the following reasons. First, without professional and systematic knowledge about material, how can they choose the most suitable alloy steel material? Most importantly, the heat treatment of materials is led by the processing factory, because the heat treatment is processed outside, and 20% of the factory changed the outsourcing processing place with one shot, thus, the hardness can not be guaranteed, let alone the stability.
AAK hydraulic valve selects the most suitable steel according to the working scene of the hydraulic valve, the medium used, and the customer's hydraulic parameters, then combined them with the wear resistance, linear expansion coefficient and deformation of different steel. The High grade tool steel like Cr12MoV, 12CrNi3A, 18CrNiWA and GCr15 are our common materials, and the last and most important link in the hardness of the hydraulic flow valve spool is |
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