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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: Is spring steel manganese steel?: Spring steel is not manganese steel, there are many kinds of spring steel, manganese 65 is more commonly used spring steel, as well as carbon spring steel and alloy spring steel.Manganese steel refers to the high manganese content of carbon steel structural steel.

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: 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: Most of the one-way valves are springs, but the springs are usually soft and the flow resistance can be neglected. Normally, a one-way valve with a pressure of more than 0.3 MPa draws a spring mark on the hydraulic schematic.

Q: What are the categories of springs?: The tension spring is a coil spring that bears axial tension. In the case of no load, the coil between the coil and the coil is generally tight and without gaps.

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: I buy a spring made of 1.2mm steel wire from a hardware store that needs quenching: It may be that the wire itself is not made of spring.The main performance requirements of spring steel are high strength and high yield limit and fatigue limit, so spring steel has higher carbon content. However, the hardenability of carbon steels is poor, so alloy steels must be used for springs with larger cross sections. The major alloying elements in alloy spring steels are silicon and manganese. They can increase hardenability and yield strength of steel.Carbon steel is used for spring with smaller diameter, and the process is mostly cold drawing, such as 65#, 75#, 85#.The diameter is a little big, and the spring produced by thermoforming process adopts 60Si2Mn, such as automobile leaf spring and buffer spring of railway vehicle.For high stress important spring can use 50CrV, commonly used in advanced sedan leaf spring, engine valve spring, etc..Other spring steel materials include: 65Mn, 50CrMn, 30W4Cr2V, etc..1.2mm diameter is not fine, so it is not hardened, it is too hard to break.

Q: How to choose spring steel material?: Whether the spring is good or not is of great importance to the choice of the spring material. In general, selection of spring material, should take into account the load properties, spring force, various factors should be size, working conditions and price, etc..

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: The shop glass spring door is too tight, how to adjust?: It is better to ask professionals to deal with the danger!

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.

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