Hydraulic pipes are common hoses in industrial systems, but many hydraulic pipes often have various problems due to improper crimping. In order to ensure the quality of the hydraulic pipe, the hydraulic hose must be pressed in strict accordance with the process. The following is a professional crimping machine
manufacturer to introduce the specific process of hydraulic hose crimping.
1. Determine the length of the hose to be unloaded
Cutting hose length: The total length of the hose includes the length of the pipe joints at both ends of the hose. The length of the actual hose is to be removed to remove the length of the pipe joints at both ends.
2, cutting tube
Use a pipe cutting machine
to cut the hydraulic hose to the length of the design according to its required specifications. The cut section is required to be vertical and flat without damaging the wire layer.
3, peeling the outer layer
To peel the rubber layer of the outer rubber layer, calculate the stripping length of the outer rubber layer at both ends of the hose according to the size of the joint and the outer sleeve and use a marker to draw the position. After stripping with a stripping machine
, the steel wire can not be damaged, no steel wire is scattered, and the inner wall of the hose is not damaged.
4. Mark the position of the hose inserted into the pipe joint
Place the hose next to the fitting and mark it more than the insertion depth of the hose.
5, Hose insertion pipe joint
Apply a small amount of hydraulic oil or oil to the core of the fitting and insert the tube into the fitting until the marking line is flush with the end of the sleeve.
6, Angle setting
The space angle of the hose assembly is only required to pay attention to the angle of the hose assembly when the pipe joints at both ends of the hose are bent and not in the same direction. (The angle of the hose assembly is: the angle at which the distal bent joint rotates in the clockwise direction to the direction of the proximal end joint, which is the angle of the hose assembly.)
7. Buckle hose assembly
Select the appropriate crimping die to be installed on the crimping machine
, and place the pipe joint to be crimped correctly in the crimping die. Press the crimping switch until the die is fully crimped on the pipe joint and run to the specified position in the supplied parameter list. Loosen the crimping die to take out the hose assembly, check whether the buckle surface of the buckle surface is evenly distributed, and use the vernier caliper to measure whether the buckle size is within the buckle size range.
8, Clean the hose and seal
The hydraulic system must achieve a certain degree of cleanliness. Clean the hose assembly with high-efficiency and convenient pressure cleaning equipment. This equipment uses kerosene to flush the inner wall of the hose assembly, then blow out the cleaning fluid with high-pressure gas, and protect the cleaned hose with a sealing cover or a sealing pocket. Both ends of the hose assembly.
9, pressure detection
If necessary, the hose can be sampled and pressure tested. The pressure test should be carried out on the pressure test bench.
The hose assembly is pressurized to twice the predetermined working pressure. The holding time is 30-60 seconds. There should be no leakage.
10, paste the label strip
The hose assembly completed after crimping should be labeled with a label, which is good for seeing the model and facilitating subsequent replacement of the hose during installation.
The above is the process of the hydraulic hose crimping
process. I hope that everyone can produce a high quality hydraulic pipe in strict accordance with the process.