1. Improper operation: In the welding process, if the operation is improper and the operation process is improper, it will lead to problems such as pipe misalignment or direction deviation during welding, resulting in loose welding of non-woven fabric pipe and infusion catheter and wire leakage.
2. Improper hot melt bonding temperature and time: The hot melt bonding of non-woven fabric tube and infusion catheter requires a certain temperature and time. If the temperature and time are not properly controlled, the bonding strength cannot be guaranteed, resulting in wire leakage during welding.
3. Material problem: If the material used is impure or does not meet the requirements, the surface of the non-woven pipe will not melt or stick easily, which is also one of the reasons for welding wire leakage.
4. Equipment failure: If the welding equipment fails, such as burning of heating coil, improper setting of thermostat, improper pressure adjustment of press, etc., it will affect the welding quality of non-woven fabric tube and infusion catheter, and may also cause welding wire leakage. Cause analysis of welding wire leakage of braided tube of contrast catheter;
5. Braided pipe itself: The fiber structure of braided pipe will affect the welding of pipeline. If the density of woven fibers is too high or the weaving is uneven, it may affect the welding strength and lead to wire leakage during welding.
6. The welding temperature is too high or too low: in the welding process, the pipe ends need hot melting to realize welding. If the welding temperature is too high or too low, or the hot melting time is not enough, it may lead to welding wire leakage.
7. Insufficient pressure: If enough pressure is not applied to the braided pipe before welding, the pipe will not fit completely after welding, which may also lead to wire leakage during welding.
8. Improper operation: Before welding, if the end face of the braided tube is not trimmed flat, or the operator does not align the braided tube with the infusion catheter correctly, the welding wire will also leak.
9. Raw material problem: If the raw material of nylon fiber or polyethylene pipe used for braided pipe has quality problems, such as impurities, impurities, etc. , which may affect the welding effect and may also lead to welding leakage.