Leaf Spring

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Main Dimension
1. Product name	Truck trailer leaf spring
2. Types	Conventional / parabolic / Z Type Leaf Spring
3. Width	90, 100, 120mm
4. Thickness	11,13,16mm
5. Pieces	Optional
6.Material	Mn, Steel, Alloy
Specification
1.Components	Leaf, clip, center and bolt
2. Color	Black, red, green or customized
3.Materials	Mn, Steel, Alloy
4.Quality	Excellent quality for international market,made in China
5.Certification	ISO 9001
6.Truck, trailer,bus suitable	MAN,VOLVO,TOYOTA,BPW,RANDON,UAZ
7.Our products are popular around the world, exported to North American, South American, European, African

Manufacturing process:

1.Shearing of flat bar

2.Center hole punching

3.End heating process forming

4. Heat treatment:

a. heating

b. camber forming

c. quenching

d. tempering

5. surface preparation:

a. shot penning / stress peening

b. painting

6. Eye bush preparation process:

a. Eye reaming / eye boring

b. Bush insertion / bush reaming

7. Assemble:

a. Presetting & load testing

b. Paint touch-up

c. Marking &packing

Q:What are the categories of springs?: Linear springs, linear springs from top to bottom of the thickness and density unchanged, the elasticity coefficient for fixed values. The dynamic response of spring of this design can make the vehicle obtain more stable and linear, is conducive to better control the vehicle driver, for vehicle performance orientation and competitive disadvantages of vehicles is of course affect comfort.

Q:The glass door spring is generally guaranteed for several years: Quality and price are pretty much the same. Many other miscellaneous brands of spring can be guaranteed for five years, three years it is best to begin with a reliable brand

Q:Is the car short spring good?: Hello! General short spring is not short, but also hard, short effect is to reduce the body, lower center of gravity, hard role is to reduce the body tilt in vehicle cornering, turn faster. The disadvantage is that the chassis is low, through the poor sex, easy to drag the site, hard on the comfort of the.

Q:How to process Spring Steel: Spring steel has excellent comprehensive performance, spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization, precise shape and size).

Q:Stainless steel and spring steel hardness, who is hard?: Hardness is checked by indentation, not by pliers.Stainless steel, of course

Q:How to choose spring steel material?: The cold plastic deformation of the cold drawn spring material is high, and most finished steel wires have reached the required mechanical properties when the steel mill is out of the factory. The surface quality of the steel wire is high, and the spring manufacturing process is simple. For springs of medium or small spring or high fatigue life, the cold spring or cold drawn spring or steel wire or strip shall be selected as far as possible. Carbon spring steel wire (group I, group II, group II A, dish group) and important uses of 65Mn spring steel wire during the cold drawing process caused in large residual stress, the larger the size change after low temperature tempering, and thus affect the dimensional accuracy of the spring. This kind of steel wire should be used preferentially for the tension spring with small bending radius and the compression spring with smaller diameter of steel wire. Oil tempered steel wire for residual stress, cold forming, precision spring is easy to control, low temperature tempering after the size change is very small, especially because there is no residual stress relaxation resistance than carbon spring steel wire lead quenching and cold drawing good. For the spring with higher size precision and the thicker diameter of spring steel and the good spring resistance, the oil quenching and tempering steel wire shall be used.

Q:What is flat steel? Plain carbon flat steel? Spring flat steel: Flat steel, also called flat steel strip, is a long thin steel with a rectangular cross-section. According to the production process, it can be divided into hot rolled flat steel strip, fine shearing flat steel belt and cold drawn flat steel belt.Ordinary carbon flat steel - the component is ordinary carbon structural steel, suitable for wide range.Flat spring - flat steel used for making spring plates of automobiles, containing manganese.

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: Certain large diameter one-way valves have no springs, and steel balls rely on gravity return. These valves usually require vertical mounting.In fact, in the oil flow driven, the ball will always reset, no spring one-way valve can also be closed. Only the closing action has hysteresis, better than the spring back reliable.

Q:What kind of material does spring have?: In some specific occasions, such as pH and humidity, we often use stainless steel to make springs.The material of the die spring is usually made of chrome alloy steel. Chromium alloy spring steel has the characteristics of high temperature resistance, great rigidity and long service life.

Q:What's the manganese content of spring steel?: Refer to Baidu Encyclopedia: in accordance with its manganese content 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 categories.

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