Step 1: There are three ways to remove oil and scale the finger spring:
1. Immerse the finger spring in a plastic container diluted with water metal cleaning agent A (the ratio of cleaning agent A and water dilution is about 1:1 or 1:2), the time is appropriate to restore the natural color of the metal without oil on the surface of the spring and no oxide scale, and the soaking time should not be too long, take it out and wash it with clean water. In this way, the surface of the finger spring has a matt effect.
2. Cleaning agent A is put into a vibrating polishing machine with coarse abrasive and spring or hexagonal drum (the volume ratio of spring to coarse abrasive is 1:3, and the amount of cleaning agent is 1%--2% of the spring weight) After grinding and polishing, wash it with clean water, and the scratches on the surface of the spring will be gone, which improves the finish of the spring surface. However, springs with high precision and easy winding are not suitable for this method.
The above two methods can be applied to springs with high precision.
3. The ratio of cleaning agent and clean water in ultrasonic equipment is about 1:30, and the time is appropriate to restore the natural color of the metal on the surface of the spring without oil and scale, and take it out and wash it with clean water, so that the surface of the finger spring can achieve a matt effect.
Step 2: Glaze the finger spring: Put brightener B into a vibrating polishing machine or hexagonal drum with coarse abrasive (the volume ratio of spring to fine abrasive is 1:
3, the amount of brightener B is about 1%-2% of the weight of the spring, the longer the brighter) after polishing, take it out and wash it with clean water to dry, so that the surface of the finger spring is as bright as nickel plating and will never fade.
Dongguan Spring Spring Electronics Co., Ltd. (SiS) was established in October 2011, specializing in the design, testing and manufacturing of elastic conductive electronic components, and moved to Chang'an Town, Dongguan in May 2018. The company has CNC lathe workshop, finger workshop, assembly workshop, laboratory. Based on the increasing requirements of the connector industry for high-current connectors, Spring Springs Electronics has developed a new type of bidirectional coil spring finger (SiS®) and single-turn spring finger , forming multiple columnar deformation contact points (up to more than 300 points). It can meet the service life of more than 100,000 times, the spring contact current density and temperature rise are close to the transmission cable, and the plugging force is about 10N. PCB board connectors (board-to-board USC, board-to-wire), cylindrical quick-swappable self-locking connectors (plastic and metal shells), male and female weight-load connectors, electric vehicle chargers, high-voltage power battery pack series connectors, used in Z advanced high-current energy collectors, energy storage and electrical equipment, such as: electric vehicles, charging base stations, wind energy generators, power supplies, high-speed rail, heavy trucks, etc. The company has a number of national patents, and the products have passed international standard testing.
