CN105710506A - Angle steel butt joint process - Google Patents

Abstract

The invention discloses an angle steel butt joint process. The angle steel butt joint process comprises the following steps that firstly, line marking is conducted, specifically, 1, according to the post-butt-joint length and size, lines are marked on angle steel to be subjected to butt joint, and before line marking, two requirements shall be met that (1) the effect that the minimum length of the angle steel to be subjected to butt joint is larger than 600 mm is ensured; and (2) 2-3 mm allowance shall be reserved in the length direction; and 2, the principles for line marking are that a cutting line on the short edge of the angle steel shall be perpendicular to a top line of the angle steel, and a 45-degree included angle shall be formed between a cutting line on the long edge of the angle steel and the top line of the angle steel; secondly, cutting is conducted, specifically, blanking is conducted through a semi-automatic flame cutting machine along the marked lines, and after blanking, a 45-degree single V-shaped groove is cut in the inner side face of the angle steel through the semi-automatic flame cutting machine or a grinding machine; thirdly, assembly is conducted, specifically, during assembly, the complete long angle steel is put on a platform upside down, then the angle steel needed to be assembled is put on the long angle steel upside down, the gap between the long angle steel and the angle steel needed to be assembled is adjusted, and spot welding fixation is conducted; and fourthly, welding is conducted. According to the angle steel butt joint process, the working procedures are reasonable, the manufacturing cost is low, all parameters are matched reasonably and coordinately, and the product quality and the production efficiency can be effectively improved.

Description

A kind of angle steel butt-joint process

Technical field

The present invention relates to a kind of angle steel butt-joint process.

Background technology

Existing angle steel butt-joint process exists that procedure arrangement is unreasonable, operation is various, and technological parameter selects unreasonable, and the collocation of each technological parameter is unreasonable and operator's skill requirement is higher so that production cost is higher, product quality is on the low side, yield rate is not high.

Summary of the invention

Because the drawbacks described above of prior art, the technical problem to be solved be to provide a kind of operation rationally, the angle steel butt-joint process of low cost of manufacture.

For achieving the above object, the invention provides

A kind of angle steel butt-joint process, comprises the steps:

1), line:

1. according to the length dimension after docking, line on the angle steel preparing docking, two requirements should be met before line:

(1) ensure that the minimum length of docking angle steel is greater than 600mm；

(2) length direction should leave the surplus of 2 ~ 3mm；

2. the principle rule is that on the minor face of angle steel, line of cut should be perpendicular to angle steel top line, and on the long limit of angle steel, line of cut should angle at 45 ° with angle steel top line；

2), cutting: with semiautomatic flame cutting machine along line blanking, open 45 ° of single V-butts with semiautomatic flame cutting machine or abrasive machine at angle steel medial surface after blanking

3), assembled:

Time assembled a complete long angle steel back-off on platform, then needing assembled angle steel to be buckled on long angle steel two, adjust the gap of two angle steel, spot welding is fixed；

4), welding:

Adopting gas shielded arc welding (GMAW) welding, before welding, angle steel back-off is a certain in plane, first weldering groove side, from the bottom up welding, in angle steel top end blow-out；Rear back side gouge back chipping has been welded in groove side, then proceedes to welding, and postwelding reinforcement should be less than 2mm.

The invention has the beneficial effects as follows: operation of the present invention is reasonable, low cost of manufacture, each parameter collocation reasonable coordination, it is possible to be effectively improved product quality and production efficiency.

Detailed description of the invention

Below in conjunction with embodiment, the invention will be further described:

A kind of angle steel butt-joint process, comprises the steps:

1), line:

1. according to the length dimension after docking, line on the angle steel preparing docking, two requirements should be met before line:

(1) ensure that the minimum length of docking angle steel is greater than 600mm；

(2) length direction should leave the surplus of 2 ~ 3mm；

2. the principle rule is that on the minor face of angle steel, line of cut should be perpendicular to angle steel top line, and on the long limit of angle steel, line of cut should angle at 45 ° with angle steel top line；

2), cutting: with semiautomatic flame cutting machine along line blanking, open 45 ° of single V-butts with semiautomatic flame cutting machine or abrasive machine at angle steel medial surface after blanking

3), assembled:

Time assembled a complete long angle steel back-off on platform, then needing assembled angle steel to be buckled on long angle steel two, adjust the gap of two angle steel, spot welding is fixed；

4), welding:

Adopting gas shielded arc welding (GMAW) welding, before welding, angle steel back-off is a certain in plane, first weldering groove side, from the bottom up welding, in angle steel top end blow-out；Rear back side gouge back chipping has been welded in groove side, then proceedes to welding, and postwelding reinforcement should be less than 2mm.

Claims (1)

1. an angle steel butt-joint process, is characterized in that: comprise the steps:

1), line:

1. according to the length dimension after docking, line on the angle steel preparing docking, two requirements should be met before line:

Ensure that the minimum length of docking angle steel is greater than 600mm；

(2), length direction should leave the surplus of 2 ~ 3mm；

2. the principle rule is that on the minor face of angle steel, line of cut should be perpendicular to angle steel top line, and on the long limit of angle steel, line of cut should angle at 45 ° with angle steel top line；

2), cutting: with semiautomatic flame cutting machine along line blanking, open 45 ° of single V-butts with semiautomatic flame cutting machine or abrasive machine at angle steel medial surface after blanking

3), assembled:

Time assembled a complete long angle steel back-off on platform, then needing assembled angle steel to be buckled on long angle steel two, adjust the gap of two angle steel, spot welding is fixed；

4), welding:

Adopting gas shielded arc welding (GMAW) welding, before welding, angle steel back-off is a certain in plane, first weldering groove side, from the bottom up welding, in angle steel top end blow-out；Rear back side gouge back chipping has been welded in groove side, then proceedes to welding, and postwelding reinforcement should be less than 2mm.