Stainless Steel SS316L Plain Polishing Spring Type Straight Pins DIN1481

Stainless Steel SS316L Plain Polishing Spring Type Straight Pins DIN1481

1,Description:

In the sales of products, cylindrical pins, conical pins and cotter pins are the production of a wide range of commercial fasteners, but also irreplaceable fastener products.

Pins play an important role in the connection of mechanical parts. According to the different shape and function, it can be divided into: cotter pin, conical pin, cylindrical pin, slot pin and so on.

The function of the dowel is to position and fasten the parts; It comes in two types: cylindrical and conical. The installation of the pin generally adopts the pressing method or the soft metal knocking in two methods. A small, usually conical, pointed, or peaked piece of wood or metal used to fasten or fasten (boards, tiles, soles, uppers, furniture molding, and components) or to mend holes.

The type of pin can be selected according to the work requirements. The diameter of the pin used for the connection may be determined empirically according to the structural characteristics of the connection, and the strength shall be checked if necessary. Locating pins are usually not subject to load or only subject to a small load, the number of not less than two. The length of the pin in each connected part is about 1-2 times the diameter of the pin. The positioning pin material is usually selected 35, 45 steel, and hardening treatment, according to the work needs can also be selected 30CrMnSiA, 1Cr13, 2Cr13, H62 and lCrl8Ni9Ti materials; The elastic cylindrical pin is mostly 65Mn, and its notch position should not be installed on the pressure side of the pin, and the direction of the notch should be indicated on the assembly drawing.

When designing the safety pin, it should be considered that the pin is not easy to fly out after cutting and is easy to replace. Safety pin materials can be selected 35, 45, 50 steel or T8A, T10A, etc., after heat treatment hardness of 30 ~ 36HRC; The pin sleeve material can be selected from 45 steel, 35SiMn, 40Cr, etc., and the hardness after heat treatment is 40 ~ 50HRC. The diameter of the safety pin should be calculated according to the shear strength tb of the pin, generally preferable tb=(0.6 ~ 0.7)ðb.

3,Specifications:

4,Feature Advantage:

1, appearance: smooth surface, coated with anti-rust oil, smooth chamfer, no burrs. The surface shall not have black skin, cracks, folds, inclusions.

2, size: according to the drawing or sealed sample inspection.

3, surface roughness: surface roughness is not more than 3.2.

4, hardness: according to the requirements of the drawing or sealed sample inspection.

5, thread: Screw with the nut into the shaft thread end should be moderate tightness.

6, rust test: with 10% salt water test does not rust. Hair width greater than 0.4mm according to crack treatment; Longitudinal hairlines permitted on the surface of the motor shaft; The magnetic trace display length of a single hair stripe is not more than 4mm; The number of hair lines allowed on the same section is not more than 5. Defects with magnetic marks showing a total length of less than 2mm are not counted.

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