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镀锌钢板的剪切加工的注意事项

返回列表 来源: 发布日期: 2020.06.03

镀锌钢板的剪切加工的注意事项

天物彩板专注彩板行业16年——山东镀锌钢板加工厂家_淄博彩涂卷压型厂家请拨打网站上方电话咨询

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镀锌钢板、彩钢板应进行剪切、下料、冲孔、切边。影响剪切的因素如下:
(1) 材料力学性能
(2) 刀具形状和间隙
(3) 材料支撑条件
(4) 刀具表面的摩擦与润滑
(5) 加工速度和温度
一般来说,这方面的适当条件与冷轧和热轧钢板的切削加工条件相同。但在切割过程中,应特别注意以下三点:
一。试着把切割部分的毛刺剪短
如果切割断面毛刺较大,与加工钢板重叠或在其他钢板上滑动会划伤其他钢板或使漆膜脱落,造成外观或耐久性差等问题。
特别是用电动圆锯机或切割磨床加工时,毛刺容易增加,所以切割后需要去除毛刺。
2。切割时清除切屑和金属粉末
使用切割机、电锯、切割磨床等工具时,切屑和金属粉末会附着在钢板表面。如果这些东西不消除,钢板堆放起来,钢板表面就会有疤痕,或者是造成外观不好或生锈的原因。因此,切屑和金属粉末需要迅速清除。
三。润滑油的选择
随着切削次数的增加,使用普通刀具进行切削时,切削刃会磨损。如果用磨损的工具切割钢板,会使切割表面变得粗糙,毛刺增多,严重时甚至会产生裂纹。为了减少刀具磨损,延长使用寿命,需要润滑油。
在切割镀锌钢板时,也可使用用于切割冷轧钢板和热轧钢板的润滑剂。但是,在彩涂板和塑料溶胶彩涂钢板上,不允许使用会导致薄膜和涂层膨胀、溶解和变色的润滑剂。最好的选择方法是指定加工条件和用途,并与制造商讨论。
加工
镀锌钢卷,除了原(宽)加工使用外,还有很多场合需要根据需要对产品进行加工。如雨水沟、顶梁、卷帘板、c.z型钢等。此外,音响设备的外壳也可以用钢卷连续冲压。在分切过程中,必须特别注意弯曲问题。

Galvanized steel sheet and color coated steel sheet shall be subject to shearing, blanking, piercing and trimming. The factors affecting the shearing are as follows:

(1) Mechanical properties of materials
(2) Tool shape and clearance
(3) Support conditions of materials
(4) Friction and lubrication of tool surface
(5) Processing speed and temperature
In general, the appropriae conditions in this regard are the same as the cutting processing conditions of cold-rolled and hot-rolled steel plates. However, in the process of cutting, the following three points should be paid special attention to:
1. Try to make the burr of the cut section short
If the burr of the cutting section is large, overlapping the processed steel plate or sliding on other plates will scratch other plates or make the film fall off, which will cause problems such as poor appearance or durability.
Especially if the electric circular saw or cutting grinder is used for processing, the burr is easy to increase, so it is necessary to remove the burr after cutting.
2. Eliminate chips and metal powder during cutting
When using the cutting machine, electric circular saw, cutting grinder and other tools, the chips and metal powder will attach to the steel plate surface. If these things are not eliminated and the steel plate is piled up, the surface of the steel plate will have scars, or it is the cause of bad appearance or rust. Therefore, chip and metal powder need to be eliminated quickly.
3. Selection of lubricating oil
With the increase of cutting times, the cutting edge will be worn when using general cutting tools for cutting. If the steel plate is cut by the worn tool, the cutting surface will become rough, and the burr will be increased, and even crack will be caused in serious cases. In order to reduce the tool wear and prolong the service life, lubricating oil is needed.
When cutting galvanized steel plate, the lubricant used for cutting cold-rolled steel plate and hot-rolled steel plate can also be used. However, on the color coated plate and the plastic sol coating color coated and coated steel plate, it is not allowed to use the lubricant that will cause the film and the coating to expand, dissolve and change color. The best way to choose it is to specify the processing conditions and use, and discuss with the manufacturer.
4. Strip processing
Galvanized steel coil, in addition to the original (wide) processing use, there are many occasions to be used according to the needs of the products to be processed. For example, rain gutter, ceiling beam, shutter board, c.z-shaped steel, etc. In addition, the shell of the sound equipment can also be processed by continuous stamping with steel coils. In the process of slitting, special attention must be paid to the bending problem.

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