Sewing machine needle fever:

Temperature is the timing by sewing machine needle sewing the material and friction, friction or suture through the pinhole. When the friction between the needle sewing the material and is very small, the suture and the friction between the pinhole is the main (sutures in the pinhole side friction). Needle the limit value of temperature is 130 ℃, but the thread through the pinhole can bring the needle on the heat at work, so by the time the highest temperature of in suture is lower than when no suture through.

Sewing machine needle heat gain is influenced by the following factors:

Sewing the material and the combination of sewing the material and layer number, completion of sewing the material and the speed of the sewing, stitching variety, needle size, surface quality, the shape of the needle.

In some cases, the needle of the highest temperature can reach 400 ℃. The location of the maximum temperature generally is in the pinhole (conical needle or sewing the material thickness and layers except more and have to strengthen the cone machine needle); Along the needle length on the temperature distribution generally similar.

Reduce the sewing machine needle heat can take measures:

Thread lubricating oil and rub in seam an agent on sewing the material and on the needle blow compressed air and silicone oil mixture, reduce speed.