故障对策一览表.doc

故障对策一览表BS（黑点）BS(Black Speck)降低树脂温度 To lower resin temperature 缩短滞留时间（加快成型周期）To shorten residence time ( To make molding cycle faster ) 确认粒料是否受到污染To make sure if there is any contamination in pellet 麻点 提高树脂温度 To raise the resin temperature 提高模具温度 To raise the mold temperature 加快注射速度 To increase injection speed 提高保压 To raise holding pressure 增大浇口尺寸 To expand gate size 增大分流道尺寸 expand runner size 降低制品厚度To reduce wall thickness 熔合纹Weld line 提高树脂温度 To raise the resin temperature 提高模具温度 To raise the mold temperature 加快注射速度 To raise the mold temperature 提高保压 To raise holding pressure 增大浇口尺寸 To expand gate size 增大分流道尺寸 To expand runner size 更改浇口位置 确认在熔合部周围是否To change gate position 有难以排气的结构。如果认为难以排气，则应设置或增强该部分的排气口 To check mold design near by weld if its hard to leak gas from vent. If its not, add new vent near there or resize existing vent 改善材料的流动性To use a material of the high flowability type 气体烧焦 降低树脂温度 To lower the resin temperature 降低模具温度 To lower the mold temperature 减慢注射速度 To decrease injection speed 确认在发生气体烧焦的部位周围是否有难以排气的构造。如果认为难以排气，则应设置或增强该部分的排气口 To check mold design near by weld if its hard to leak gas from vent. If its not, add new vent near there or resize existing vent. 重新考虑分流道和浇口的配置review if gate and runner is appropriate.光泽不好Haze 提高树脂温度 To raise the resin temperature 提高模具温度 To raise the mold temperature 加快注射速度 To increase injection speed 提高保压 To raise holding pressure 增大浇口尺寸 To expand gate size 改善材料的流动性To use a material of the high flowability type 冷料Cold Slag 提高树脂温度，尤其是要提高喷嘴的设定温度 To raise the resin temperature especially, nozzle temperature 增大模具的冷料阱（冷料积存处）To expand slag well which is trap hole for cold slag喷射纹Jetting 提高树脂温度 To raise the resin temperature 提高模具温度 To raise the mold temperature 减慢注射速度 To decrease injection speed 增大浇口尺寸 To expand gate size 更改浇口位置 To change gate position 降低制品厚度 To reduce wall thickness 改善材料的流动性To use a material of the high flowability type 充填不足Short shot 提高树脂温度 To raise the resin temperature 提高模具温度 To raise the mold temperature 加快注射速度 To increase injection speed 提高保压 To raise holding pressure 确定是否有缓冲量。如果没有，则应增加计量值 To check if there is a cushion. if not, to increase metering value. 调整切换位置 To adjust P-V switch-over point 增大浇口尺寸 To expand gate size 增加浇口点数 To increase number of gate 增大分流道尺寸 To expand runner size 重新考虑分流道配置 To review runner position 确认排气口是否容易堵塞。如果容易堵塞，则应增强排气口 To look if the vent is stuck. if it is, to expand the vent size. 加厚制品厚度 To thicken wall thickness 改善材料的流动性 To use a material of the high flowability type银纹Silver 降低树脂温度To lower the resin temperature 提高成型前的干燥温度，并延长时间 To raise temperature and extend time of pre-drying 减慢注射速度 To decrease injection speed 减慢螺杆转速 To lower screw rotation speed 提高背压 To raise back pressure 确认是否残留有以前的材料。如果是，则应重新清洗 To check if pre-molded material is existed in cylinder. if it is, to purge again. 缩短树脂在成型机内的滞留时间（加快成型周期） To shorten residence time ( To make molding cycle faster ) 增强排气口 To expand vent size 确认有无污染To look if there is contamination 压花不均匀Poor transcription of emboss 提高树脂温度 To raise the resin temperature 提高模具温度 To raise the mold temperature 加快注射速度 To increase injection speed 提高保压 To raise holding pressure 增大浇口尺寸 To expand gate size 增大分流道尺寸 To expand runner size 改善材料的流动性To use a material of the high flowability type 滑痕Slipping 更改模具温度（不得过高或过低。应逐渐调整） To adjust mold temperature (Dont set much higher or much lower value. Adjust little by little) 更改注射温度（不得过快或过慢。应逐渐调整）To adjust injection speed (Dont set much higher or much lower value. Adjust little by little) 更改浇口位置 To change gate position 更改制品形状（转角处的R等）To modify product shape (for example, R of corner) 飞边Flash 降低模具温度 To lower mold temperature 降低保压 To decrease holding pressure 减慢注射速度 To decrease injection speed 提前VP切换位置 To set VP switching timing early 确认合模压力是否充足。如果不充足，则应提高模压或改用大型的成型机 To confirm if mold closing pressure is sufficient. If not, to raise closing pressure or change molding machine larger class. 重新考虑分流道和浇口的配置To review the position of runner and gate 使排气口变薄 To reduce vent thickness 凹痕Sink mark 降低模温 To lower molding temperature 提高保压 To raise holding pressure 确定是否有缓冲量。如果没有，则应增加计量值 To look if there is the cushion. If not, to increase metering value. 采用多段保压 To use multi holding pressure 增大浇口尺寸 To expand gate size 扩大分流道尺寸 To expand runner size 将浇口位置移动到有问题的部To change position of gate near the sink mark, or set new gate near the sink mark 位附近或重新设置浇口位置 To reduce wall thickness 降低厚度 须状斑纹POM树脂固有的问题Gate brush. This is POM specific issue. 提高模具温度 To raise molding temperature 减慢注射速度 To decrease injection speed 增大浇口尺寸 To expand gate size To use a material of the high flowability type改善材料的流动性表面剥离Delamination 更改树脂温度（不得过高或过低。应逐渐调整） To adjust resin temperature (Dont set much higher or much lower value. Adjust little by little) 提高模具温度 To raise molding temperature 提高成型前的干燥温度，并延长时间 To raise temperature and extend time of pre-drying 加快注射速度 To increase injection speed 降低保压 To lower holding pressure 加快螺杆转速 To raise screw rotation speed 提高背压 To raise back pressure 确认是否残留有以前的材料。如果是，则应重新清洗 To check if pre-molded material is existed in cylinder. if it is, to purge again. 缩短树脂在成型机内的滞留时间（加快成型周期） To shorten residence time ( To make molding cycle faster ) 增大浇口尺寸 To expand gate size 如果是厚度1t以下的薄壁成型品，则请尝试增加制品的厚度 To thicken wall thickness if thickness of product is less than 1mmt. 如果等级不属于标准材料并且用的是回收塑料，则应尝试降低回收塑料的比例To reduce the ratio of recycled material if it is the grade except standard one. 气泡Blister 降低树脂温度 To lower resin temperature 提高模具温度 To raise mold temperature 提高成型前的干燥温度，并延长时间 To raise temperature and extend time of pre-drying 减慢注射速度 To decrease injection speed 减慢螺杆转速 To decrease screw rotation speed 提高背压 To raise back pressure 增大浇口尺寸 To expand gate size To thicken wall thickness增加成型品的厚度 变色 降低树脂温度 To lower resin temperature 确认粒料在成型前的干燥中是否变色（干燥条件是否过于严格） To look if the pellet is discolor by pre-drying (Is drying condition too hard 减慢注射速度 To decrease injection speed 减慢螺杆转速 To decrease screw rotation speed 缩短树脂在成型机内的滞留时间（加快成型周期）To shorten residence time ( To make molding cycle faster ) 空洞 Void降低树脂温度 To lower resin temperature 提高模具温度 To lower mold temperature 提高成型前的干燥温度，并延长时间 To raise temperature and extend time of pre-drying 减慢注射速度 To increase injection speed 提高保压 To raise holding pressure 确定是否有缓冲量。如果没有，则应增加计量值 To check if there is a cushion. if not, to increase metering value. 采用多段保压 To use multi holding pressure 减慢螺杆转速 To lower screw rotation speed 提高背压 To raise back pressure 缩短树脂在成型机内的滞留时间（加快成型周期） To shorten residence time ( To make molding cycler faster 增大浇口尺寸 To expand gate size 增大分流道尺寸 To expand runner size 将浇口位置移动到有问题的部位附近或重新设置浇口位置 To change position of gate near the void, or set new gate near the void 确认在出现空洞的部位周围是否有难以排气的构造。如果认为难以排气，则应设置或增强该部分的排气口 To look if the vent is stuck. if it is stuck, to expand the vent size or add new vent. 降低制品厚度 To reduce the thickness of wall To use a material of the high viscosity type 波纹 提高模具温度 加快注射速度 增大浇口尺寸 Especially nozzle To lower mold temperature To decrease back pressure To use a material of the high viscosity type To use shut-off nozzle To shrink hole diameter of nozzle 降低厚度To use special nozzle against Stringiness (Consult with man