a. When carrying out automatic cutting, when lifting the steel plate to the gas cutting platform, the distance difference between the two ends of the steel plate and the guide rail should be adjusted within 5mm. When performing semi-automatic cutting, the guide rail should be placed on the plane of the steel plate to be cut, and then the cutting machine should be gently placed on the guide rail. Make the side with the cutting torch face the operator, select the cutting nozzle according to the thickness of the steel plate, and adjust the cutting straightness and cutting speed.
b. According to the different automatic cutting and semi-automatic cutting methods, adjust the distance of each cutting torch, determine the rear drag amount, and consider the gap compensation; in the cutting process, the size and direction of the cutting torch angle are mainly determined by the thickness of the steel plate. The relationship between the inclination angle of the cutting nozzle and the thickness of the cutting piece and the cutting margin are shown in the following table: The relationship between the inclination angle of the cutting nozzle and the thickness of the cutting piece The thickness of the cutting piece <10 ≥10 The inclination direction backward inclination angle number 10°-15° 0° Steel plate cutting Margin table Cutting method Material thickness mm Cutting gap width (mm) Remarks Gas cutting material ≤10 1~2 10~20 2.5 20~40 3.0 40 or more.
c. Adjust the cutting parameters according to the plate thickness. The cutting parameters include cutting nozzle model, oxygen pressure, cutting speed and energy of preheating flame, etc. The selection of process parameters is mainly based on the type of gas cutting machine and the thickness of the steel plate that can be cut. For steel plates of the same type, test cutting of similar steel plates should be conducted to determine the cutting parameters and check the air patency of the cutting nozzle.
When performing thick plate gas cutting, keep the cutting nozzle perpendicular to the surface of the workpiece. After the entire section is cut through, move the cutting nozzle and switch to normal gas cutting. When the gas cutting is about to reach the end, the speed should be slightly slowed down to completely cut the lower part of the cut.
The loading and unloading of steel plate cutting lines (flame cutting, plasma cutting, laser cutting, etc.) usually requires only one whole plate to be lifted when loading. After cutting, all the cutting workpieces are lifted from the cutting table at one time or as many as possible In response to this requirement, Hanwei Magnet has developed matrix and dense electric permanent magnet spreader systems.
Our company is an innovative enterprise focusing on precision sheet metal parts manufacturing and mechanical finishing, integrating R&D, production and trade. It can provide professional supporting services for environmental protection, construction machinery, industrial control, electric power, medical treatment, communications, transportation rail, food equipment, architectural decoration engineering and other industries. The main products include various chassis cabinets, industrial consoles, molds, equipment accessories And non-standard metal products. According to the parts drawing and structural characteristics of the above parts. There are several processing technology options available:
(1) Die stamping;
(2) Wire EDM;
(3) High pressure water cutting;
(4) Laser cutting.