联系我们收藏本站在线留言网站地图欢迎进入唐山天物彩板有限公司官网!

彩板厂家_彩涂板价格_彩涂卷厂家_彩涂板价格_唐山彩涂板厂家

天物彩板-始于2004 专注功能性高端彩板生产销售
服务热线: 400-060-9166
服务热线: 13931586578
彩板厂家

合肥彩涂板加工厂家在加工成形性方面主要要求

返回列表 来源: 发布日期: 2020.09.17

合肥彩涂板加工厂家在加工成形性方面主要要求

彩涂板加工厂家的成形性和耐腐蚀性是主要的选择项目。在加工成形性方面,主要要求如下:
(1) 屈服特性。如果彩涂板放置时间较长,考虑到老化的影响,成型前必须将其整平。当涂层烘烤温度升高时,会加剧老化现象。当严格要求不时效时,应使用含碳量很低的钢。

(2)彩涂板加工厂家 形状保持特性。一般来说,当屈服应力较小,加工硬化指数n较大时,弹性回复现象减小。在板料成形过程中,由于成形表面的弹塑性应力变化不均匀,会出现弹性回复不均匀的现象。一般来说,低屈服比(65/6b)的材料有利于形状保持。
(3) 成形性。彩涂板冲压成形性不仅与材料和模具的形状有关,而且与材料本身的特性有关。屈服应力小、延伸率高的材料具有良好的拉伸成形性能。此外,较高的N值有利于均匀的延伸率和良好的拉拔成形性。塑性应变比y与拉深性能关系最为密切。y值越大,拉深性能越好。
(4) 彩涂板加工厂家僵化。这里的刚度是指在垂直方向上施加压力时成型板的刚度。曲率小、形状平坦的面板容易出现凹陷和凸起。因此,在确定合理厚度时应考虑曲率。基体的耐蚀性主要包括裸板的耐蚀性、成形后的耐蚀性和刃口的牺牲保护图。
通过对各种涂层钢板的耐腐蚀性能比较,认为在不耐高温(350~50℃)的条件下,推荐热浸镀锌铝钢板(Zn+5%Al+re(mg)商品名Galfan)为最佳。其耐蚀性比热镀锌板高2~4倍。其加工性能与电镀板相当,成本与常用热镀锌板相当。

The formability and corrosion resistance of color coated sheet are the main items to be selected. In the aspect of processing formability, the main requirements are as follows:

(1) Yield characteristics. If the color coated sheet is placed for a long time and the effect of aging is considered, it must be leveled before forming. When the temperature is increased by coating baking, the aging phenomenon will be aggravated. If steel with very low carbon content should be used when non aging is strictly required.
(2) Shape preserving properties. Generally speaking, when the yield stress is small and the work hardening index n is large, the elastic recovery phenomenon is reduced. In the process of sheet forming, because of the non-uniform change of elastic-plastic stress in the forming surface, uneven elastic recovery will occur. Generally, the material with low yield ratio (65 / 6b) is beneficial to shape retention.
(3) Formaility. The formability of color coated sheet stamping process is not only related to the shape of material and die, but also to the characteristics of material itself. The material with small yield stress and high elongation has good tensile formability. In addition, high N value is conducive to uniform elongation and good drawing formability. The plastic strain ratio y is the most closely related to the deep drawing property. The higher the y value is, the better the deep drawing property is.
(4) Rigidity. Here the rigidity refers to the rigidity of the formed plate when the pressure is applied in the vertical direction. The panel with small curvature and flat shape is prone to sag and bulge. Therefore, the curvature should be considered to determine the reasonable thickness. The corrosion resistance of the substrate mainly includes the corrosion resistance of the bare plate, the corrosion resistance after forming and the sacrificial protection diagram of the cutting edge.
After comparing the corrosion resistance characteristics of various kinds of coated steel sheets, it is considered that under the condition of no high temperature (350 ~ 50 ` C) oxidation resistance, hot dip galvanized aluminum steel sheet (Zn + 5% Al + re (mg) commercial name Galfan) is recommended as the best. Its corrosion resistance is 2 ~ 4 times higher than that of hot-dip galvanized sheet. Its processability is equivalent to that of electroplated sheet, and its cost is almost equal to that of commonly used hot-dip galvanized sheet.

咨询热线

400-060-9166