The adjustment method of non-uniform copper drawing wire mainly includes the following aspects:
?1. Check and adjust raw materials ? :
Ensure that the material composition of the copper rod is uniform and the diameter is consistent, to avoid the uneven distribution of
impurities inside the material or the uneven tensile caused by the inconsistent size of crystal particles ?.
?2. Check and adjust the device status ? :
? mold inspection ? : to ensure that the drawing mold size is accurate, no wear or deformation. The wear of the die will directly affect the
outside diameter of the drawn copper wire. It is necessary to check and replace the worn die ? regularly.
? tension adjustment ? : reasonably set and adjust the front and rear tension according to the copper wire material and drawing process.
Too much or too little tension may lead to outside diameter deviation, need to test to find the best tension setting ?.
? Lubrication and cooling ? : Ensure that components such as wire storers and drawing dies are well lubricated to reduce friction and wear.
At the same time, check the normal operation of the cooling system to ensure that the copper wire is fully cooled during the drawing process ?.
?3. Optimize drawing process parameters ? :
? speed matching ? : Adjust the speed setting of the wire drawing machine to ensure that the drawing speed matches the annealing speed
and avoid the outside diameter change caused by the speed mismatch ?.
? Annealing control ? : pay close attention to the status of the copper wire on the annealing wheel to avoid the copper wire jitter during the
annealing process, which affects the outside diameter ?.
? mold adjustment ? : according to the actual situation of the wire drawing machine and the principle of wire drawing, re mold drawing machine.
The stability and uniformity of the wire drawing process ? are ensured by adjusting the speed of the annealing wheel and the speed of the constant speed wheel.
?4. Other adjustments ? :
Check the condition of the lead wheel. If it is worn or unbalanced, repair or replace it ?.
Adjust the tension on the lead wheel so that it is properly tight, but not too tight ?.
Adjust the clearance between lead wheel and screw to ensure proper clearance ?.
The above adjustment method can effectively solve the problem of uneven copper large drawing wire, improve product quality and production efficiency.