1045 Linear Chromed Steel Rod Blow Molding Machines Use

1: What is the difference between bearing steel chrome-plated rod and 45# steel?

The most commonly used bearing steel is GCr15. Comparison between GCr15 and 45# steel: GCr15 is alloy steel, wear-resistant, while 45# is only medium carbon steel, which is generally used to make more mold bases. Compared with bearing steel, No. 45 steel has poor wear resistance. Bearing steel has high and uniform hardness and wear resistance, as well as a high elastic limit.

2: Standards for the diameter of chrome-plated rods

Chrome-plated rods with a diameter of 12 mm, 45 steel after quenching and before tempering, are qualified if the hardness is greater than HRC55 (up to HRC62). The actual application hardness is HRC55 (high frequency quenching HRC58). 2. Do not use the heat treatment process of carburizing and quenching for 45 steel. After quenching and tempering, the parts have good comprehensive mechanical properties and are widely used in various important structural parts, especially those connecting rods, bolts, gears and shafts that work under alternating loads. But the surface hardness is low, not wear-resistant. Tempering + surface quenching can be used to improve the surface hardness of parts. 12 mm diameter chrome-plated rod, high-frequency chrome-plated rod is made of 45# steel with chrome-plated surface, widely used in mechanical equipment, etc., ordinary optical axis (piston rod) hardness is about 20 degrees, high-frequency hardened optical axis (quenching/tempering) Optical axis) has a hardness of about 55 degrees. It can be used in conjunction with linear bearings, shaft bearings or aluminum brackets. The wear resistance and corrosion resistance of the product promote the high precision, high speed, high competitiveness, durability, and large The performance of the equipment is greatly improved; at the same time, it has a considerable price advantage. The 12 mm diameter chrome-plated rod and the high-frequency precision linear optical axis are a new type of standard parts that are gradually adopted by advanced machinery industries around the world in recent years. It is widely used in electronics, packaging, textiles, printing, engineering, transportation, steel, mining, hydraulic cylinders, cylinders, operating rods, adjusting rods, linear motion. The conventional specifications of chrome-plated rods are mainly Φ3, Φ4, Φ6, Φ8, Φ10, Φ12, Φ13, Φ14, Φ15, Φ16, Φ17, Φ18, Φ20, Φ22, Φ25, Φ28, Φ30, Φ32, Φ35, Φ38, Φ40, Φ45, Φ50, Φ55, Φ60, Φ63, Φ65, Φ70, Φ75, Φ80, Φ85, Φ90, Φ100, Φ120 and other high frequency. Chrome-plated rods are divided into two series, namely LM and LME series. Its code-named LM series is used in Asia, Southeast Asian countries, Japan, Korea, China, etc. Taking the metric size as the standard, the outer diameter tolerance of the used linear shaft is generally h7. LME series are mostly used in Europe, the United States, Germany, Italy and other regions. The inch size is used as the standard, and there are also metric sizes. The outer diameter tolerance of the used linear shaft is generally g6. The structural characteristics of the two series are roughly the same except for the different dimensions and aperture tolerances.

Parameters

technical standard:

Outer diameter accuracy: f7, f8, h7
Surface finish: ≦Ra0.4S
Roundness: ≦0.01mm
Straightness: ≦0.15/1000mm
Hard chrome plating thickness: 0.015~0.05mm (can be customized according to customer requirements)
Surface hardness: HB220-260
Standard outer diameter: ￠3~￠120
Standard length: 1000-6000mm
Material: S45C (45#), 40Cr, GCr15, 2Cr13, 42CrMo, SUS304, SUS303, SUS316, etc.

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