塑胶模具等级分类.doc

塑胶模具等级分类塑胶模具等级分类塑胶模具等级分类 模具分类：美国塑胶工业学会 (SPI AN-102-78)，将模具分为五大类这五大类型模具各有其不同的要求标准，而这种模具分类只适用于配 400吨或以下的注塑机的模具a) 101 型周期可达 100 万次，用于极高生产量的产品选用最好模具材料制造，因此价钱极昂贵要求标准如下：(1) 需要有详尽的模具设计资料2) 模胚硬度要求最少要有 BHN280 (HRC 30) 3) 模具表面（包括上模和下模）必定最少要在 BHN450 (48RC )硬度范围所有其它配件如滑块、斜顶、压顶等应使用硬工具钢4) 顶出机备须有导向件5) 侧滑块一定要装有损耗板6) 上模、下模、滑块或模具上可能的地方要装上温度控制器7) 在模具寿命上，因冷却运水管道的侵蚀而做成产品质素下降和增加注塑周期，建议有冷却运水的嵌入件或模板做防侵蚀处理8) 所有此类型之模具皆要装有分模线锁模机构b) 102 型周期可达 50 万次至 100 万次用于高生产量的产品，选用较好质量的模具材料制造，价钱贵要求标准如下：(1) 需要有详尽的模具设计资料。

2) 模胚硬度要求最少要有 BHN280 ( HRC30 )3) 上模和下模表面硬度应在 BHN540 ( HRC 48 )范围所有其它功能配件应做热处理4) 上模、下模、滑块或模具上可能的地方装上温度控制器5) 所有此类型之模具皆要装有分模线锁模机构6) 以下项目可能性需要或不需要，取决于最后生产数量的考虑建议这些项目同样做一份确认的报价单· 顶出导向件· 滑块损耗板· 已做防侵蚀处理的控制器管道· 电镀上模(c) 103 型周期可达 50 万次用于中生产量的产品，价钱合理要求标准如下：(1) 需要有详尽的模具设计资料2) 模胚硬度要求最少要有 BHN165 ( HRC17 )3) 上模和下模必定最少有 BHN280 ( HRC30 ) 硬度或以上4) 所有其它配件自由选择d) 104 型周期可达 10 万次用于低生产量的产品，模具材料耐磨性不高，价钱低于一般合理水平要求标准如下：(1) 建议有模具设计资料2) 模胚可以是软钢或铝金属3) 上模可以是铝金属，软钢或其它可认定的材料4) 所有其它配件可自由选择e) 105 型周期不超过 500 次。

用于生产有限度数量之首板，价钱非常便宜 要求标准如下：模具结构可能是压铸材料，环氧树脂或其它可提供足够强度生产最低数量首板之材料SPI Mold Classifications:SPI Class 101 Molds: (Rated for one million or more cycles) Mold design required. Mold base should be a minimum hardness of 280 BHN. Molding surfaces (cavities and cores) must be hardened to a minimum of 48 RC. All other details, such as slides heel blocks, gibs, wedge blocks, etc., should also be of hardened tool steels. Ejection should be guided. Slides must have wear plates. Temperature control provisions to be in cavities, cores and slides wherever possible. Over the life of the mold, corrosion in the cooling channels decreases cooling efficiency thus degrading part quality and increasing cycle time. It is therefore recommended that plates or inserts containing cooling channels be of a corrosive resistant material or treated to prevent corrosion. Parting line locks are required on all molds.SPI Class 102 Molds: (Rated for no more than one million cycles) Molds design required. This mold is identical to the type 101 with the following items not required: guided ejection, hardened slide wear plates, plated water channels, and wear plated cavities. All other extras are optional. This tool is a medium to high production tool that is good for abrasive materials and / or close tolerance products.SPI Class 103 Molds: (Rated for under 500,000 cycles) Mold design recommended. Mold base should be a minimum hardness of 165 BHN. Cores and cavities must be 280 BHN or higher. All other extras optional. SPI Class 104 Molds:(Rated for under 100,000 cycles) Mold design recommended. Mold base can be of mild steel or aluminum. Cores and cavities can be of aluminum, mild steel or any other agreed upon metal. All other extras optional.SPI Class 105 Molds: (Rated for no more than 500 cycles) The mold base may be constructed from cast metal or epoxy or any other material offering sufficient strength to produce the minimum prototype pieces. This tool is only for prototype purposes only. All other extras are optional.。