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For the hydraulic valve blocks with 24 deep holes and large holes, AAK replaced the Dutch manufactur

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Torsten is from the Netherlands. As an old purchaser, he is very handy in the hydraulic industry. Unexpectedly, he fell on a hydraulic valve block with 24 deep holes and large holes. In the second half of last year, his company developed a large-scale hydraulic windlass for ships. The hydraulic valve block used was sampled from a hydraulic valve block manufacturer in the Netherlands, but the machine running test was not smooth. After the equipment has been operated for 8 hours, there is leakage at the installation hole of the hydraulic valve block. After eliminating the suspected quality of the hydraulic cartridge valves, the engineer inspected the installation hole of the hydraulic valve block and found that the center position of the hole was offset.

The original manufacturer of the hydraulic valve block feedback that it is caused by the deviation of the drill bit, and a new sample is required. However, although the processing accuracy of the second sample was improved, there was still leakage 1 month later. Now the equipment is waiting to be put into production. Their engineers have push Torsten 3 times. He can only look for new hydraulic valve block manufacturers. Torsten contacted more than 10 manufacturers and asked if they could process the hydraulic valve blocks with 24 deep holes and large holes. Only 2 manufacturers were willing to try, but they were not 100% sure. Torsten left message on AAK website: how to control the accuracy of the hydraulic valve blocks with 24 deep holes and large holes? At first, I thought it was from a peer of hydraulic valve blocks, and ignored it. It was not until Torsten sent three-dimensional and two-dimensional drawings of the hydraulic valve block that I knew the difficulties he had encountered. I told him that AAK had produced similar hydraulic valve blocks with large holes and deep holes.

After 28 days, 5 hydraulic valve blocks were sent. 3 months later, Torsten sent an order for 500 hydraulic valve blocks. He specially reminded that the accuracy of the mass production must be the same as that of the samples. AAK is the only manufacturer of hydraulic valve blocks whose samples passed the test. AAK hydraulic valve blocks, for the processing of deep holes and large holes, there are 3 details:

Before the hydraulic valve block is processed, the clamping stiffness of the tool shall be verified to avoid the insufficient clamping stiffness of the drill bit, which may cause the drill bit to deviate and cause the processing hole to be slightly elliptical.

During the processing of the hydraulic valve blocks, a small drill bit smaller than the processing size is used for pre drilling. The deeper the drill bit is drilled, the easier it is to deviate from the predetermined axis, resulting in the deviation of the center position of the processing hole. The secondary processing of AAK can ensure that the drill bit does not deviate. At the same time, the feed amount and speed setting of the tool are strictly subdivided, so that the cutting chips can be timely excluded from the hole. Most hydraulic valve block manufacturers suffer from this link. Cutting chips are accumulated at the end, affecting the roughness of the valve hole and the processing of the drill bit, leaving hidden dangers for later leakage.

After the hydraulic valve block is processed, the center position, roughness and roundness of the processed hole shall be checked one by one.

AAK hydraulic valve blocks, is not afraid of deep holes, nor slender holes, nor large holes, no deviation. You can also try a small order!

AAK HYDRAULIC VALVES (323) 2022-08-19

Цена: 100 руб.
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