Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hard stone-plastic backing plate for PCB drilling and preparation method thereof
The invention discloses a hard stone-plastic backing plate for PCB drilling and a preparation method thereof. The preparation method comprises the following steps: (1) weighing 10-30% by weight of thermoplastic plastic, 60-85% by weight of mineral powder and 5-11% by weight of an assistant, and performing mixing; (2) extruding the mixed raw materials at 160-180DEG C by adopting a PVC plate extrusion production line; and (3) adjusting the thickness between 1mm and 5mm as required, conducting rolling and forming, cooling, and cutting into the required specification, thereby obtaining the hard stone-plastic backing plate for PCB drilling. The product disclosed by the invention is very good in flatness, does not deform or warp and is not influenced by weather, and the shore hardness can be randomly adjusted between 70 degrees and 100 degrees. Various requirements of PCB drilling on the backing plate can be met; and the defects that the drilling quality is influenced and a drill bit is not favorably protected due to the conditions of sand marks, concave-convex parts, scratches, warping deformation, insufficient hardness and the like of the wood fiber backing plate are avoided. And meanwhile, after drilling is used, waste can be recycled, no garbage is generated, and environmental protection is facilitated.
本发明公开了一种PCB钻孔用硬质石塑垫板及其制备方法。其制备方法包括以下步骤：（1）按重量百分比计，称取10~30%热塑性塑料、60~85%矿物粉和5~11%助剂并混合；（2）采用PVC板材挤出生产线将上述混合原料在160~180℃下挤出；（3）厚度根据需求在1mm到5mm之间调整，经辊压成型、冷却、裁切成所需规格，即得PCB钻孔用硬质石塑垫板。本发明的产品平整度非常好，产品不变形，不曲翘，不受气候影响，邵氏硬度可以在70度至100度间任意调整。可满足PCB钻孔对垫板的各项要求；避免了木质纤维垫板因砂痕、凹凸、划伤、曲翘变形、硬度不足等情况，影响钻孔质量及不利于保护钻头的缺陷。同时，在钻孔使用后，废料可回收再利用，不产生垃圾，利于环境保护。
Hard stone-plastic backing plate for PCB drilling and preparation method thereof
The invention discloses a hard stone-plastic backing plate for PCB drilling and a preparation method thereof. The preparation method comprises the following steps: (1) weighing 10-30% by weight of thermoplastic plastic, 60-85% by weight of mineral powder and 5-11% by weight of an assistant, and performing mixing; (2) extruding the mixed raw materials at 160-180DEG C by adopting a PVC plate extrusion production line; and (3) adjusting the thickness between 1mm and 5mm as required, conducting rolling and forming, cooling, and cutting into the required specification, thereby obtaining the hard stone-plastic backing plate for PCB drilling. The product disclosed by the invention is very good in flatness, does not deform or warp and is not influenced by weather, and the shore hardness can be randomly adjusted between 70 degrees and 100 degrees. Various requirements of PCB drilling on the backing plate can be met; and the defects that the drilling quality is influenced and a drill bit is not favorably protected due to the conditions of sand marks, concave-convex parts, scratches, warping deformation, insufficient hardness and the like of the wood fiber backing plate are avoided. And meanwhile, after drilling is used, waste can be recycled, no garbage is generated, and environmental protection is facilitated.
本发明公开了一种PCB钻孔用硬质石塑垫板及其制备方法。其制备方法包括以下步骤：（1）按重量百分比计，称取10~30%热塑性塑料、60~85%矿物粉和5~11%助剂并混合；（2）采用PVC板材挤出生产线将上述混合原料在160~180℃下挤出；（3）厚度根据需求在1mm到5mm之间调整，经辊压成型、冷却、裁切成所需规格，即得PCB钻孔用硬质石塑垫板。本发明的产品平整度非常好，产品不变形，不曲翘，不受气候影响，邵氏硬度可以在70度至100度间任意调整。可满足PCB钻孔对垫板的各项要求；避免了木质纤维垫板因砂痕、凹凸、划伤、曲翘变形、硬度不足等情况，影响钻孔质量及不利于保护钻头的缺陷。同时，在钻孔使用后，废料可回收再利用，不产生垃圾，利于环境保护。
Hard stone-plastic backing plate for PCB drilling and preparation method thereof
一种PCB钻孔用硬质石塑垫板及其制备方法
LIU TIANYU (Autor:in)
09.04.2021
Patent
Elektronische Ressource
Chinesisch
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