wholesale vermeil jewelry
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jewelry designer should i put wholesale prices on lineshettes Advantages: less steel, stable structure, affordable, and disadvantages: in the later period, it is easy to sound, and overweight will deform and cannot be restored.
In Eun Pai Co., Ltd. was established on October 07, 1996. The company's business scope includes: import and export wholesale of machinery, equipment, electromechanical products, and relevant supporting services, business consulting and investment management consulting.
Sub -essence: Spring is a mechanical parts that work with elasticity. The parts made of elastic material deformation under the action of external force. After removing the external force, the original state The types of spring are complex and diverse. According to the shape, there are mainly spiral springs, turbine spring, plate spring, alien spring, etc.
Spring history: Like most other basic mechanisms, metal springs have long -been had a long bronze era. Even metal, wood is used as a flexible bow and arrow and military ejaculation structural component. The precise watch makes the precision spring inevitable for the first time.
Itta:
Note the problem: Due to the limitation of the product structure, multiple springs generally have the characteristics of high strength and good performance. It is required to guarantee the final performance in the spring strength and toughness of the spring.
During the processing process of multiple reeds, it should be noted that:
1, the support circle can choose two methods: cold and heat and heat according to product requirements. Or white, the temperature of the silicon manganese steel should not be higher than 850 ° C. The supporting ring and the valid circle shall be effective in contact, and the gap must not exceed 10%of the nominal gap between the circle.
2, the characteristics of the multi -sharing spring can be determined by the adjustment guide. The cable distance can be adjusted during the winding. The twisting distance can be 3 ~ 14 times the diameter of the wire, but it is generally 8 to 13 times that it is better. Freedom height, parallel circles, outer diameter and steel wire performance, etc., can be changed by adjusting one or several items.
3, springs without supporting rings and springs that are too thin in diameter of the steel wire should not be welded, but the end steel cables should not be obviously loose and should be removed. For multiple springs that need to be welded, the length of the welding site should be less than 3 times the rocked diameter, the heating length should be less than one circle. After welding, it should be polished and smooth.
The above content reference: Spring-Baidu Encyclopedia