The spring sheet has various shapes and structures due to different uses.According to the shape, it can be divided into two types: straight springs and bending springs. According to the shape of the plate, it can be divided into rectangular, trapezoidal, triangle and stage shape, alien, etc.
Spring chip model
How to make spring chips
1. Select the material.The selection of materials is a relatively important link for making springs.The production materials of spring sheets generally require high elastic limit, fatigue limit, impact toughness and good thermal treatment performance.Therefore, the commonly used spring slices are carbon shochri, alloy bullets, stainless steel shots, copper alloys, etc.2. Production.Spring pieces can be cold and hot rolls.Generally, the chilled scroll method with a diameter of the shot wire is less than 8mm.According to the performance of the selected production materials, after selecting the production method, according to the different environments and functions, the spring sheet must be made into different types.3. Due to the different production materials, some springs are made of cold rolls or hot rolls, and it must also be treated with pressure or spraying, so that the role of the spring sheet can be maximized.
Spring chip structure
Because there are many types of springs, I will only give the most common air spring here.The basic principle is to fill the oily mixture or inert gas that has a certain difference pressure from the outside atmospheric pressure, and then use the pressure difference on the cross section of the piston rod to complete the free movement of the air spring.The more important structure of spring pieces is also the structure that is the most prone to occur in its production process is the beeurger.The most important thing on the tin on its film is the upper tin of the middle positive lead. Because it is painted with ceramic powder on it, the electric soldering iron with too large power when it is on the tin will scal the ceramic powder. ThereforeShort, at the same time, it is necessary to use better welded wires. Generally, it is generally used above 60 ° C. This welding wire contains a large tin content, and the liquidity will be better during welding.
Spring film material
Spring pieces can choose flat steel bands with brands such as phosphorus bronze, tin bronze, 65mn, 55SI2MN, 60SI2MNA, 55SIMNVB, 55SIMNMOV, 60CRMN, 60CRMNB, 302, 316 and other flat steel belts.The spring sheet material working at high temperature requires good thermal stability, anti -relaxation or creep capacity, antioxidant ability, and certain media corrosion capacity.The decrease in quantity has caused the stiffness to decrease, and the loading capacity becomes less. Therefore, the spring working at high temperature must understand the change rate (value) of the elastic modulus, and the impact of the decline in the bearing capacity of the spring chip on use. According to GB1239 regulations, ordinary spiralsWhen the work temperature of the spring exceeds 60 ° C, the cutting modulus can be corrected. The formula is: GT = KTG type G -elastic modulus at room temperature; GT -cutting modulus under work temperature T; KT —-The temperature correction coefficient is selected according to Table 2-98.

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