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Forklift fork and preparation method thereof

A technology for forks and forklifts, which is applied in the field of forklift parts and its preparation, can solve problems such as production and safety impacts, brittle fractures, fractures, etc., and achieve the effects of ensuring quality, improving weldability, and good overall performance

Inactive Publication Date: 2015-04-29
NINGBO RENBA FORK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, fracture accidents still occur during the use of the fork, and most of them occur in the welding part, which is a brittle fracture, which has a certain impact on production and safety.

Method used

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  • Forklift fork and preparation method thereof
  • Forklift fork and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Weigh the raw material and prepare it into a square columnar steel material conforming to the composition and weight parts of the steel material of Example 1 in Table 1, and then cut off the required cross-section including at least the inclined plane of the fork tine part according to the process parameter requirements, And form a marked area anywhere on the material surface after cutting to obtain rough billet I. Afterwards, the obtained rough blank I was heated to 900°C by intermediate frequency for pretreatment. After the pretreatment, the rough blank I was bent under a pressure of 750T to form the vertical part and the horizontal part of the forklift fork and make the vertical part and the horizontal part of the forklift fork An angle of 89° is formed between them, and green body I is obtained. Then preheat the obtained green body I to 150°C after sawing the back and cutting the head, and then weld the sleeve. After grinding and ultrasonic flaw detection, the gree...

Embodiment 2

[0041] Weigh the raw material and prepare it into a square columnar steel material conforming to the composition and parts by weight of the steel material of Example 2 in Table 1, and then cut off the required cross-section including at least the inclined plane of the fork tine portion according to the requirements of the process parameters, And form a marked area anywhere on the material surface after cutting to obtain rough billet I. Afterwards, the rough blank I obtained is heated to 950°C by intermediate frequency for pretreatment. After the pretreatment, the rough blank I is bent under a pressure of 780T to form the vertical part and the horizontal part of the forklift fork and make the vertical part and the horizontal part of the forklift fork An angle of 89.3° is formed between them, and green body I is obtained. Then the obtained green body I is preheated to 165°C after sawing the back and cutting the head, and then welding the sleeve. After grinding and ultrasonic fl...

Embodiment 3

[0043] Weigh the raw material and prepare it into a square columnar steel material conforming to the composition and weight parts of the steel material of Example 3 in Table 1, and then cut off the required cross-section including at least the slope of the fork fork according to the requirements of the process parameters, And form a marked area anywhere on the material surface after cutting to obtain rough billet I. Afterwards, the rough blank I obtained is heated to 1000°C by intermediate frequency for pretreatment. After the pretreatment, the rough blank I is bent under a pressure of 800T to form the vertical part and the horizontal part of the forklift fork and make the vertical part and the horizontal part of the forklift fork An angle of 89.6° is formed between them, and green body I is obtained. Then the obtained green body I is preheated to 180°C after sawing the back and cutting the head, and then welding the sleeve. After grinding and ultrasonic flaw detection, the g...

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Abstract

The invention discloses a forklift fork, which comprises a vertical part, a horizontal part and a fork tooth arranged at the front end of the horizontal part, the forklift fork is made of steel material, and the steel material is mainly composed of C, Si, B, Cr, Ti, Cu, Mn, Ni, Al, Mg, Nb, V, rare-earth elements, S, P, the balance of Fe and inevitable impurities. A preparation method of the forklift fork includes the following steps: the materials are first prepared into the steel meeting requirement, a needed section is then cut out, so that a rough blank I is obtained, the rough blank I then undergoes medium-frequency heating pretreatment and is then bent into the vertical part and the horizontal part of the forklift fork until an included angle Alpha is formed between the vertical part and the horizontal part of the forklift fork, and after back sawing, head cutting, sleeve welding, grinding, ultrasonic flaw detection, heat treatment, primary shot-blasting grinding, corrective grinding and secondary shot-blasting grinding, the forklift fork is obtained. The properties of the forklift fork produced by the invention, such as strength, toughness, wear resistance and weldability, are good, the safety coefficient is high, and the service life is long.

Description

technical field [0001] The invention relates to a forklift accessory and a preparation method thereof, in particular to a forklift fork and a preparation method thereof. Background technique [0002] The fork of the forklift is equivalent to the manipulator mounted on the forklift, making the forklift a multi-purpose and efficient material handling tool. Widely used in warehousing, papermaking, packaging, printing, tobacco, home appliances, wine and beverages, wool and cotton textiles, ports and terminals, railways, automobile manufacturing, steel smelting, chemical and construction industries, and can handle almost any conceivable handling objects Perform operations such as fork, clamp, push, pull, side shift and rotation, thereby improving logistics efficiency, reducing production costs, avoiding product damage, and saving storage space. [0003] Usually forklifts are equipped with two identical forks, which are stressed and require small cross-section and light weight. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F9/12B23P15/00C22C38/58C22C38/54
CPCB66F9/12B23P15/00C22C38/002C22C38/005C22C38/02C22C38/04C22C38/06C22C38/08C22C38/14C22C38/16C22C38/18C22C38/32
Inventor 姚雅平
Owner NINGBO RENBA FORK
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