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AAK impressed German customer with 3 points for hydraulic cartridge check valve with length diameter

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4 hydraulic valve manufacturers, made samples for 5 samples, but none of them were able to produce the hydraulic cartridge check valve with a length diameter ratio of 25:1 successfully. AAK adopted a special slender shaft processing technology, and the sample passed the testing successfully at one time, the parameters of the hydraulic cartridge check valve were up to standard, and the surface roughness was improved by 0.3%, and the geometric accuracy was improved by 0.8%. German customer was satisfied.

Cheney is a senior buyer of hydraulic cartridge valves in Germany. He is good at dealing with different abnormal conditions of hydraulic valves, such as stuck valves, leaks, cavitation etc. But this time, he was trapped by a hydraulic cartridge check valve with the ratio of shaft length to diameter greater than 25. Four hydraulic cartridge valve manufacturers, made samples for 5 times, spent 10 weeks, but without any results. Compared with conventional valves, this slender shaft hydraulic cartridge check valve has poor rigidity, easy deformation, large vibration, difficult cutting control, and strict requirements for processing technology. This is the root cause of the failure of most hydraulic cartridge check valve manufacturers.

Cheney sourced for nearly 1 week, but still no hydraulic valve manufacturer is willing to take over. When he was browsing B2B, he saw AAK and noticed that AAK had an article about the hydraulic valve with long length diameter ratio, so he left us a message. After several rounds of email communication, Cheney seemed to see the hope and sent the drawing of the hydraulic cartridge check valve to us.

2 weeks later, AAK sent 8 samples of slender shaft hydraulic cartridge check valve. 7 days later, Cheney emailed that the parameters of AAK slender shaft hydraulic cartridge check valve were up to standard, its functions were normal, its surface roughness was improved by 0.3%, and its geometric accuracy was improved by 0.8%, which surprised their engineers. The reason why AAK succeeded in the first time is due to following 3 points:

Selection of drill bit and fixture: match the appropriate long drill bit from 3 aspects of hardness, heat resistance and impact toughness, and adopt the clamping method of one clamp and one top, at the same time use flexible movable center to compensate thermal deformation elongation, so that the slender shaft can stretch freely after being heated to avoid thermal deformation.

Control of cutting amount and cutting fluid: reasonably select the drilling amount according to the length diameter ratio. During cutting, the cutting fluid shall be fully poured to inhibit the rise of working temperature, thus inhibiting the thermal deformation.

Sharp tool control: the tool change frequency is increased by 3 times. Effectively reduce the friction and heat between the trolley knife and the workpiece, and control the thermal deformation from the source.

In recent years, AAK has successively supplied a Spanish customer with hydraulic cartridge check valves with the same length diameter ratio, and it is repeatedly ordered 4 times a year. Although it is difficult to machine the hydraulic cartridge check valve with long length diameter ratio, AAK has unique skills.

The slender shaft hydraulic cartridge check valve of AAK, is purchased by a Spanish customer 4 times a year. Welcome to have a small try!

AAK HYDRAULIC CARTRIDGE VALVES (358) 2022-09-23

Цена: 100 руб.
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