The hydraulic flow control valve is benchmarked with Brevini, and the Italian customer can't refuse
Christopher is from Italian hydraulic company Hydr-app S.p.a. and responsible for the procurement of Beijing office. At the beginning of last month, he wanted to purchase a batch of hydraulic flow control valves urgently from AAK, because they had a batch of hydraulic power units sold to Southeast Asia that needed to replace the hydraulic flow control valves. At the beginning of last year, considering the cost and supply, his boss purchased the hydraulic flow control valves from China, which were originally purchased from Brevini locally. At the beginning, AAK also participated in the sampling of hydraulic flow control valves, but was cancelled because the quotation of AAK was more than 25% higher than that of other hydraulic valve manufacturers. Half a year later, they were complained several times that the hydraulic flow control valve leakage led to the unstable pressure of the hydraulic power unit. The original manufacturer replaced some hydraulic flow control valves, but 6 months later, similar complaints happened again, that is, the stability of these hydraulic flow control valves was only 6 months.
Christopher found that the AAK hydraulic flow control valve samples have been normal for more than 1 year, which is as stable as the Brevini hydraulic flow control valves they purchased before. He persuaded the boss to buy from AAK. Although the price was more than 25% higher than other hydraulic valve manufacturers, but it was about 30% cheaper than that of Italy Brevini. More interestingly, the stability of AAK hydraulic flow control valves were not only more than twice that of its peers, but also benchmarked Brevini.
Christopher wants to find out why the hydraulic flow control valves of every factory samples are qualified at the beginning. Six months later, except AAK, all other hydraulic flow control valves will leak and affect the stability. The leakage of hydraulic flow control valves after half a year is mostly due to the wear of parts, that is, the unstable surface hardness of materials during heat treatment. Most manufacturers adopt conventional heat treatment, which has advantages in processing cost. How does AAK do it?
AAK hydraulic valve has its own heat treatment plant, which can adopt different heat treatment methods in quenching, carburizing and nitriding according to different contents of steel. AAK can achieve the aging temperature of 420 degrees, heat preservation of more than 10H, and can also obtain the material hardness of 65HRC.
The core component materials of AAK hydraulic flow control valves use the industry\'s most advanced EFD Induction Sinac heating power supply for induction heat treatment, with less oxide scale and small deformation. The workpiece is quenched and locally heated accurately to make the surface hardness of each processing element consistent.
In the later stage, AAK test the hardness of each part of the hydraulic flow control valves point-to-point. SonoDur3, a Rockwell hardness tester imported from Germany, is used to perform nondestructive testing efficiently and accurately.
The Italian customer said that the stability of AAK hydraulic flow control valves was benchmarked with Brevini. You can also give it a try!
AAK HYDRAULIC VALVES (223) 2022-05-11
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