AAK INDUSTRY CO., LTD
AAK hydraulic valve using 40Cr as valve sleeve material, successfully remedy the Italian Customer hydraulic market.
2023/6/9 | Other Hot News
The selection of valve sleeve material is directly related to the performance of hydraulic valve. The domestic 1214 steel is easy to cut and has high output. At the same time, the loss of machining blade is relatively small. At present, in order to save cost, the vast majority of peers use domestic 1214 steel as valve sleeve, which often ignores the potential problems, such as brittleness and easy deformation during heat treatment. If the valve sleeve is deformed, it will cause the spring base to jam and malfunction in the process of tightening and loosening, and affect the pressure and flow control. Currently, the valves produced by vast majority of manufacturers have these hidden dangers.
David from Italy is mainly responsible for the purchasing of hydraulic valves in East China in the past two years. Last year, he purchased a batch of pilot hydraulic valves from our hydraulic peers. There was no problem in the production and assembly, even after the test on the pressure test bench. The market sales data of this order was also very optimistic. David's team was planning to re-peat the order and double the qty. However, at the same time, he received complaints from 30% of customers. The problem is all the same that the spring base is stuck and after being adjusted for two or three times, it becomes loose, and the control of pressure and flow almost fails.
He accidentally saw our company website on the Internet. After simple email communication, we suggested that he come to our company for onsite comparison. David came to our company with samples the next day. We could not see any problems from the appearance of these products, so we immediately tested the samples with more precise parameters. After tightening and loosening for 2-3 cycles, there was a phenomenon of stuck and adjusting failure. After checking the test parameters, the original problem was that there was slight deformation on the screw thread inside the valve sleeve, a discrepancy of only a few μm, which cannot be seen by naked eye, but can lead to the phenomenon of stuck in the process of cooperating with spring base. David was surprised that we were so quick to detect the problem and asked how we could avoid these risks.
We compared our valve sleeve material data with his sample material data one by one, and he understood the mystery. In order to avoid another quality problem and lose the Italian market, he requested us to rush a new batch of orders for him to replace the current defective products. With the stable quality in recent years, David's team has been recognized by new and old customers, and our company has gradually become his leading supplier.
All the hydraulic valve sleeve produced by AAK uses 40Cr. The main reason is that after heat treatment at appropriate temperature, 40Cr achieves excellent comprehensive mechanical properties in terms of toughness, plasticity and wear resistance. Especially for surface hardening treatment such as high frequency quenching and tempering of steel, AAK has its own proprietary technology.
If you still have concerns about AAK hydraulic valve, it is normal, but do not miss us, you can try a small order.
Russian customers accepted the suggestion of AAK Industry Co., Ltd for hydraulic oil and successfully restored the trust of their customers
For hydraulic valves in oily medium, oil selection is very important. Russian customers accepted AAK's suggestion on the selection of hydraulic oil, which successfully restored the trust of their customers. The quality of oil will also affect the service life of products. At present, many users ...
The gap error between AAK hydraulic cartridge valve and valve block was reduced to 2 μ M-3 μ m, and the order quantity of American customers increased
The gap error between the hydraulic cartridge valve and the valve block produced by AAK was reduced to 2μm-3μm, and the sealing oil effect surpassed 95% of its peers. The order volume of American customers increased from 30% to 50%, and there was no quality complaint. Because of being used to the ...
An old American customer transferred the order and the hydraulic valve leaked oil. After AAK helped solve the problem, he came back again
The hydraulic valves produced by AAK use nitrile rubber sealing ring, which has better seal performance than most of the peers. Even though the market competition is fierce, there is no old customer transferring orders. Only Tom, an American customer who has cooperated for six years, transferred ord ...
AAK hydraulic valve on the selection of steel is extremely harsh, saving one after another foreign trade customers
AAK hydraulic valve for each part of the steel selection is extremely demanding, which beyond customer's imagination. Only in this point, we've run over most of our peers. In the face of increasingly fierce competition in the hydraulic valve market, the simplest way to break through is to cut co ...