Press the hydraulic pipe fittings standard need to do what procedures
Be sure to grasp the reasonable degree of withholding, with joint core hole shrinkage degree as the standard, GB joints under compression compression joints under ordinary small 0.1~0.4mm, small 0.1~2mm. Because the hose and the joint coat of different manufacturers, such as the GB standard for most northern rubber hose production plant, 602 standard for the south, foreign SAE standard, the factory hose, joint specific size, material may not be the same, so the buckling parameter table data for reference only, the specific size should be withheld according to the experimental pressure.
The corresponding micrometer scale is 3. Installed with 33mm mold on the mold seat, and rotated to 3 micrometer scale, the hose peeling and joint assembly. After measuring the joint outer diameter of buckling is buckling parameter table after withholding value 33.5mm is withheld. If the diameter does not conform to withhold, after a fine micrometer withhold hose. Withhold hose connector: swage size too much, hose layer broken, causing leakage; too little buckling size, and hydraulic oil spill caused by rushing out of joint.
Press with 19mm four layer steel wire hose (Italy Manul manuli4sp) from the hydraulic tubing buckling parameters in the table look up with four layers of 19mm steel wire hose joint diameter is 37mm before pressing coat, rubber 33.5mm, the die diameter is phi 33mm,
