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Product Description

Description	battery leaf spring contact
Material	Steel,carbon steel, Stainless steel, Alloy steel(60Si2Mn ), Oil tempered wire or as your request
Wire Dia	at your request
Surface treatment	Nickel / Zinc / Gold / Silver / Tin / Chromium / Yellow Zinc / Oxide black or according to your needs .
Certificate	ISO:9001
Packing Detail	Inner plastic bag, outer carton box, and advised by customer
Application	Auto industry / Recreational facilities / Elevator/Mining machinery / Crusher / Oil field equipment / electronic products/recreational facilities and other machinery
Technician	>10 they have rich experience and some along with our company from setting up.
Payment terms	L/C , T/T or other payments
Advanced machine	Accurately control tolerance
Equipment	Advanced CNC computer spring machines with high precision and efficiency, high quality heat treatment and testing machine
Company information	Our company is very convenient for transportation , east of Tianjin port. It is the professional manufacturers which combine a set of spring manufacturing, R & D with surface treatment.
All the designs and details can be changed according to customers’ demands

Q:How should we choose the spring material?: In the small spring should be used after hardening spring steel wire, cold drawn steel wire and lead bath oil tempered steel wire with high strength and good surface quality, fatigue performance is higher than the ordinary tempered steel wire, simple processing, good manufacturability, quality and stability.

Q:I buy a spring made of 1.2mm steel wire from a hardware store that needs quenching: The quenching temperature of the spring depends on the critical temperature of the spring material. After quenching, there should be no free ferrite and cementite in the metallographic structure of the spring material, so as not to lead to uneven deformation or fatigue strength. When quenching, the oxidation and decarburization shall be prevented as much as possible.

Q:What kind of spring has the best performance?: Number of coils, coil number is greater than the difference between the 0.25 circle, will directly affect the intensity of emotion.

Q:How to distinguish between spring steel and stainless steel: Stainless acid resistant steel, or stainless steel, is made up of two parts: stainless steel and acid resistant steel. In short, steel that resists atmospheric corrosion is called stainless steel, and steel resistant to chemical corrosion is called acid resistant steel. Spring steel is a quality carbon steel, but it can rust.

Q:What is spring pressure and height?: That is, the spring is compressed to the height of the full circle.

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:Stainless steel and spring steel hardness, who is hard?: To sell the spring steel where seen relatively hard two pliers are very difficult to open

Q:What is an independent bagged spring?: Independent bagged spring is a spring with non-woven package, barrel type design can prevent the spring friction and swinging or noise, no influence between spring, elastic energy in accordance with the size of individual expansion, different weight average and proper support of various parts of the body to keep the spine straight, make sleep more comfortable. Bagged spring than ordinary spring production process is more complicated, the cost is higher, so the price is slightly expensive. But human health is obviously.

Q:Cold rolled coil spring spring and difference ": Coil is to burn the red, generally large diameter to coil

Q:In short, in vibration and wave, it is not easy to make mistakes when we grasp the difference and relationship between "displacement" and "displacement relative to the balance position": In short, in vibration and wave, it is not easy to make mistakes when we grasp the difference and relationship between "displacement" and "displacement relative to the balance position"

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