Several common wall thickness specifications of PU steel wire hose and how to roughly identify the quality of the hose
PU steel wire hose can well meet the requirements of dust collection, ventilation and transportation in all walks of life. The pipe wall is covered with a strong and elastic copper-plated steel wire, which can be stretched and bent; the pipe wall: adopts special top polyether-polyurethane, It has the characteristics of wear resistance, tear resistance, low temperature resistance, etc., suitable for conveying pipes for high flow rate and very abrasive sand, gravel, fine-grained useless glass and chips. It is widely used in the plastics industry to convey particles and powders, particle conveying devices, vacuum hoppers/conveyors, suction conveyors, batching systems, and is the first choice for wear-resistant suction pipes for woodworking machinery.
There are many types of PU steel wire hose, but its main feature is made of high-quality wear-resistant polyurethane PU material and copper-plated steel wire. PU steel wire hoses can be divided into 0.4mm, 0.6mm, 0.9mm, etc. due to different thicknesses. These are several commonly used PU steel wire hoses with different wall thicknesses. PU steel wire hoses with different wall thicknesses have different application fields. PU steel wire telescopic tube 501 (the wall thickness is about 0.4mm, light weight, strong flexibility, suitable for frequently swinging positions, light material suction and transportation, such as woodworking dust suction pipe). PU steel wire hose 502 (the wall thickness is about 0.6mm, can be bent arbitrarily, can be extended and contracted, suitable for the transportation of industrial dust, such as ceramic powder conveying pipe, blanking batching system); high wear-resistant PU steel wire hose 503 (LKE-00503 ) (The wall thickness is about 0.9mm, can be bent arbitrarily, not stretchable, suitable for relatively coarse particles, high friction media, such as drilling machine dust suction pipe, sweeper dust suction, high-speed rail sewage and feces extraction); high tear resistance Crack strength, good mineral oil resistance and chemical resistance, strong resistance to positive and negative pressure, used for the suction and transportation of highly abrasive solid particles).
The quality of the PU steel wire hose during use is related to the safety of production. How to check the quality of the PU steel wire hose? In the absence of any testing tools and testing conditions, we can according to vision, smell, Tactile and other senses roughly identify the quality of the PU steel wire hose.
1. Observe whether the diameter of the PU steel wire hose is regular and whether the wall thickness is uniform. The inner diameter and periphery of the high-quality PU steel wire hose are standard round, and the annular pipe wall is evenly distributed.
2. The wall of the high-quality PU steel wire hose is crystal clear without any impurities. The color of the defective PU steel wire hose is yellowish, which may be caused by decomposition, aging, or long-term improper storage during the production process due to improper handling. Look at the color, the PU tube made of new materials has a natural bright color on the surface and feels very smooth. The raw material of Hangzhou Haikuo PU steel wire hose is made of German imported PU material, which guarantees the quality.
3. The high-quality PU steel wire pipe has no smell of other petrochemical products except a little plastic smell. The inferior PU steel wire pipe has an unpleasant pungent diesel smell, especially in the hot summer, people can't get close. Whether it is industrial grade or food grade PU hoses, the inner and outer pipe walls are smooth and feel good, while low-quality pipes are rough.
Fourth, the structure of the PU steel wire pipe is that the steel wire is embedded in the inner wall of the hose. The good quality pipe should be tightly embedded without gaps, and there will be no room for air and water to enter. If the steel wire of the PU steel wire pipe is inlaid The pressure is not tight enough, and it is easy to enter water and air. Under the dual action of water and air, it will cause the appearance of rust of the copper-plated steel wire. If this happens, if the hose needs to have a certain telescopic movement during use, It will cause the friction between the hose and the pipe wall to increase, and it is easy to cause unnecessary damage to the pipe wall, which greatly affects the service life of the PU steel wire hose.