Bow spring and spring net can effectively solve the problem of uneven forming of spring net. Bow spring and spring net can effectively solve the problem of uneven forming of spring net. In daily life, in mattresses, cushions and other products, in order to meet the comfort of use, the interior of the cushion cannot be separated from the support of springs. After the existing springs, whether corrugated or arched, are woven into a net, due to the structural limitations of the spring itself, the spring net will be uneven and one side will be warped.

Key points of heat treatment process for bow spring

The purpose of the first tempering is to adjust the structure of the steel plate. The arch spring blank is 145.5 mm × 14.5 mm × Take 3% samples from each batch of 3 mm plates (sample size is 35 mm × 15 mm × 3 mm). Put the blank and sample into the coater, heat them in the salt bath furnace, cool the oil and discharge it from the furnace. Cleaning, degreasing and sand blasting shall be carried out, and the surface of parts and samples shall be coated with protective coating. Tempering temperature: 720 ℃± 10 ℃, heat preservation: 60 minutes, air cooling from the oven. Check the hardness HRC26 (check the surface hardness of the sample after grinding>0.2mm)

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