High-pressure hoses often act unstable during production. People who don’t know them well struggle to stabilize them. Using the wrong measures can even backfire. So, what factors affect a high-pressure hose’s stability?
To boost performance and prevent mechanical damage, you need to protect the hose. Smaller high-pressure rubber hoses usually use steel mesh sleeves. The number of steel strip spindles should be an even number of 4 or more. For manual weaving, any number in this range works. For mechanical weaving, though, it’s trickier. Knitting machines have fixed spindle counts that can’t be adjusted. Thus, it’s best to set the steel strip’s spindle count based on the existing braiding machine’s spindle count.
Currently, knitting machines come in 24, 36, and 48 spindle models. These are designed to weave wire mesh covers, creating a “double flower” pattern. Steel belt weaving, however, works best with a “single flower” pattern. With minor modifications, these knitting machines can weave steel belt mesh sleeves.
The steel strip’s actual width must be smaller than its theoretical width. The exact difference depends on how well the mesh sleeve covers the high-pressure water hose. Braiding angles typically range from 30 to 45 degrees. To ensure the hose can bear a certain load, you can reduce this angle. Abroad, the minimum braiding angle is just 15 degrees.
This angle directly impacts the hose’s performance. Using the upper limit (45 degrees) helps the hose stay flexible but limits its load capacity. Using the lower limit (15 degrees) lets the rubber hose bear more weight but makes it less flexible.
The mesh sleeve should cover 75% to 95% of the high-pressure hose. Too much coverage (over 95%) makes the hose stiff. Too little (under 75%) leaves it unprotected.