High Class Serpentine Spring

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(1) Ability for the material of spring

^{(2)Ability for the surface finish:}

Electroplate	Zinc plated(while,colour,dacroment),Nickel plated,copper plated,gold plated,chrome(3+Rohs &6+ ) plated,anodic oxidation,etc
Dip plating	black oxide coating,hot dip galvanizing,etc
Flame plating	Light oil,spray coating,electrophoretic coating,etc
Polishing	Grinding and polishing,etc,except mirror finish

^{(3)Ability for the tolerance}

Q:What kind of production equipment does spring factory usually have?: Multi function forming machine, coil spring machine, 580 press spring machine, extension spring machine, etc.Small heat treatment is also needed

Q:What are the categories of springs?: A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under external force and are restored to original shape after removal of external forces. Also made as a spring". Usually made of spring steel. The type of spring is complex and varied. According to the shape, there are mainly spiral spring, scroll spring, plate spring, special-shaped spring and so on.

Q:The glass door spring is generally guaranteed for several years: but once you change the maintenance fees are higher than the artificial spring spring price itself

Q:How to process Spring Steel: The available oxygen converter furnace and open hearth furnace or general production of spring steel; high quality spring steel or better quality with special properties, furnace or vacuum refining furnace. The content of carbon, manganese, silicon and other major elements in spring steel is narrow, and the chemical composition must be strictly controlled during smelting. When the silicon content is high, it is easy to form bubbles and other defects. After the ingot is rolled and rolled, the cooling is not easy. Therefore, the raw materials used for smelting must be dry, as much as possible to remove gas and inclusions, and to avoid overheating of the steel.

Q:What is spring pressure and height?: Press the compression spring to the point where each circle is tightPress height = = (total coil number -0.5) * steel wire diameter

Q:What's the spring material to?: 65Mn, 55Si2Mn, 60Si2Mn, 50CrVA, 75, 85, 55CrMnA, 60Si2CrVA, 60Si2MnA, 70, 65, 50CrMo, 55SiMnMoVNb, 60SiMnMoA, 65Si2MnWA, 70Si3MnA, and so on

Q:How to choose spring steel material?: In determining the cross-section shape and size of spring materials, priority should be given to rejection of the national standards or ministerial standards for size specifications, as far as possible to avoid the use of non-standard specifications of materials. Although the spiral spring square or rectangular cross section material, the elastic deformation can be higher than, can make the small volume of the spring, for spring, in small space or under impact load but because of square or rectangular section material shortage, the price is higher, and the spring forming is difficult, so should be avoided. Ring section spring material diameter series see table 3-9.

Q:Hydraulic diagram of the one-way valve has two kinds of drawing, with a spring, without a spring, what is the difference between automatic reset function is not? Without a spring, it will not be repeated: General one-way valve is spring to reset, as for drawing may be the standard of drawing is not the same. As long as no oil passes, it closes.

Q:What kind of material does spring have?: 65MnSpring steel belongs to the mechanical structure steel; according to the quality grade, it belongs to the special quality steel, that is to say, in the process of production, it is necessary to strictly control the quality and performance of the steel.

Q:What's the manganese content of spring steel?: Manganese content in spring steel is divided into general manganese content (mass fraction) (0.50%~0.80%), such as 65, 70, 85 and higher manganese content (mass fraction) (0.90~1.20%), such as 65Mn two.Excellent performance with spring steel, spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization, precise shape and size).The spring steel is classified according to the chemical compositionAccording to GB/T 13304 standard, spring steel is divided into non alloy spring steel (carbon spring steel) and alloy spring steel according to its chemical composition.

3. Manufacturer Capability
a)Trade Capacity
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b)Factory Information
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