Matters needing attention in the drawing process of diamond wire drawing die operators:
① ② When wearing the whole mold, firstly arrange the molds according to the size and specifications, check whether the surface quality of the copper-plated steel wire is qualified, and report any abnormality in time. When each mold is worn, ensure that there is lubricating fluid on the surface of the steel wire, and ensure sufficient lubrication as much as possible ( for immersion moulding)
. Also check whether the dimensional tolerance of each mold meets the process requirements.
③ After the die is finished, check whether the die is in the state of three points and one line during the process, and whether the steel wire is in hard friction with any part of the equipment. If it is found that it is not standardized, it should be adjusted in time, otherwise the surface of the steel wire will be damaged, resulting in serious mold expansion and subsequent processes. Twist broken wire.
④ After the comprehensive inspection is completed, the fastening bolts should be locked to prevent the vibration of the machine tool from producing slub threads. Check that the lubricant level is sufficient for lubrication and cooling of the finished mold.
⑤ When starting, first ensure that the low-speed operation of the machine tool makes the surface of the mold fully run in, so as to enhance the wear resistance of the mold and increase the service life.
⑥ replacement die drawing process must meet the following conditions ***:
. A wire diameter when not meet process requirements;
. B mold during drawing or severe rupture pull Mullah marks, to check the status of the wire, three-point line, The lubricating conditions and the tolerance of the front and rear molds do not meet the requirements, resulting in uneven compression rate of some parts, and serious adhesion of the mold surface, which affects the thermal conductivity of the mold;
c. The replaced old mold should be checked and analyzed to make full use of it correctly;
d. When the process is changed The set of molds sent to the mold warehouse should be marked, indicating the drawing time in days and whether the dimensional tolerance of the mold is within the process range, so that the mold warehouse personnel can classify and store them in a short time;