Shanghai Daoqin Plastics Co., Ltd.

1, 欠注

in injection molding processing in, due to type filling 不满, 导致塑 parts outer 形残缺不完整 phenomenon.

2, material flash

模塑 process in, mold clamping 面缝隙间并留存 in parts upper material.

3, 熔接痕

塑 parts surface types 线状痕迹, injection or extrusion in dry material in tool in separation combined, material in interface 处未完 full combined, 彼此不 can is 一体, formed combined 印迹, effect/influence parts appearance quality and force property can.
4, flow marks

due to material in mold type in 不适当 flow, 导致塑 parts table/sheet generate year 轮状, 螺旋状 or 云雾状 波形凹凸不平 defect.

5, surface mixed 浊

指塑 parts surface generate has 空隙 裂缝 and 由此形 formed loss. due to long time or 反复施 add low plastics force property can force 而引起塑 parts external or internal generate cracks phenomenon is force cracking; due to parts in temperature degree lower 经受一定时问 恒定 negative function 而突然完一 full phenomenon is force 破裂; certain thermoplastic property parts degree in relatively high temperature degree lower cracks and 破裂称 is hot force cracking.

6, pressure 裂

指透 surface cover/cap resin can lamination plastics relatively outer 面 一层 or reinforcement material in tool has obvious cracks.

7, 皱裂

lamination plastics surface generate and obvious separation 开 一 types defect.

8, 皱折

塑 parts surface or more 层出现折痕 or appearance defect.

9, crazing and whitening

塑 parts surface generate comparison obvious micro fine cracks is crazing, and crazing versus 似 霜状 micro fine cracks is whitening, crazing and whitening is has micro fine cracks. parts in certain types chemical product ring or 处于应 force conditions lower 时, generate ring force crazing.

10, silver streaks 纹

塑 parts surface material direction generate 针状银 white generally fine 纹.

11, strip/profile 纹

塑 parts surface or internal in strip/profile defect.

12, 斑纹

due to color material dispersion or mixed combined defect and other causes formed parts surface generate sheet/slice dark defect..

13, 桔皮纹

塑 parts surface generate 如桔皮般凹凸不平 appearance defect..

14, strip/profile 纹

指 in foam plastics in, and its solid has structure difference very large 泡孔层.

15, black spots

in molding process in, material in high temperature high pressure conditions lower hot separation understanding, 导致塑 parts surface generate black carbon 化点.

16, or 亮点

in transparent or semi transparent plastics film, sheet/slice or parts inner in separation pellets, use light 透射时即 can to white 粒点, this type of 粒点称 is “鱼眼”. if material is transparent or has color 时, this type of 粒点称 is or 亮点.

17, 麻点

塑 parts surface 出现 规则 or 不规则 small 陷坑, usually its deep degree and wide degree large same.

18, filler 斑

塑 parts in due to powder or and other filler in formed obvious 斑痕.

19, dark 斑

显现 in material is laminate structure in dark color 污点.

20, and 糊斑

in high temperature high pressure molding conditions lower, material due to hot separation understanding carbon 化, carbon 化 焦 material mixed in material in, in parts surface and internal formed defect.

21, bubbles

in process in, if material inner a large amount of gas 体, or mold cavity in gas full 排净, make parts molding rear internal formed relatively small or formed 串孔隙 defect.

22, true or dark 泡

塑 parts in cooling solid 化时, due to inner outer cooling speed degree different, has outer surface already cooling solid 化, internal still hot 熔状态, in 心部位 cooling shrinkage 时, parts internal generate true 空孔洞, this category of generally is true or dark 泡, shrink 孔.

23, 针孔

plastics sheet/slice or film in in large small defect.

24, 瘪泡

foam plastics in manufacturing process in due to structure to bad formed local density increase large defect.

25, and shrink 瘪

塑 parts in cooling process in, due to table/sheet cooling solid 化, internal or thick rear cooling solid 化, make shrinkage 时, inner outer shrinkage speed degree 不一致, parts table/sheet to internal tensile formed 凹陷, generate shallow or 陷窝.

26, shrink

reinforcement hot solid property plastics solid 化时, reinforcement fiber due to resin shrinkage 而发生皱 shrink phenomenon.

27, shrink

in tensile in force lower, material can can local shrink decrease phenomenon.

28, warpage deformation

经 模塑 or other processing rear, parts outer 形发生形状畸变, dimensions 扭曲, type 孔偏移, thick and other parts outer and mold type has very large phenomenon. if parts or 曲面部 separation 显示出一 types for property 呈凹面 or relatively deep 凹面 扭变, 则称之 is 碟状扭曲 or 凹状扭曲.

29, dimensions unstable

塑 parts outer dimensions to molding conditions, raw materials property can, mold and equipment and other factors effect/influence, generate or 不规则 波动. is 说, parts in molding process in maintain outer can force relatively 差.

30, color and color 泽不匀

因 light, hot, outer 暴露, chemical agent and other function 而引起 塑 parts appearance color 泽 变化 or make parts surface 缺乏应 has color uniform property.

31, color

wet film in material generate 离析, 引起变 color. this main/primary is due to material abrasion 不当, solvent agent add amount or viscosity low formed.

32, 发白

due to coating in solvent agent fast speed 蒸发, make film in large gas below/following cooling water in wet surface upper cold 凝, make new or new spray coating coating surface generate 苍白 褪 color 斑.

33, 发红

指 white or shallow color ethylene coating material long 期接触 面 generate powder color 斑点.

34, melt 破裂

extrusion material surface 出现凹凸不平 or outer 形发生畸变以致支离 or fracture 总称. its is due to material in mold export 处 松弛效应, extrusion 时 剪应 force very high, melt performance elastic property 应变不一致, from make extrusion material in elastic property process in 出现畸变 or fracture phenomenon. this type of phenomenon has 时也称之 is “鳖鱼皮” phenomenon.

35, type 坯膨胀

in blow molding in, type from extrusion increase large phenomenon, usually type 坯截面积 and 模口截面积之 ratio table/sheet 示.

36, 模口膨胀

in extrusion molding 时, extrusion material ultra- 模口直径 phenomenon.

37, 喷流

指熔 material from small or thin 截面进人 large or thick 截面时流 material generate phenomenon.

38, mold sticking and demolding defect

指塑 parts can from mold inner 顺利脱出 phenomenon.

39, 欠熟化

in hot solid property resin or plastics process in, due to time or temperature degree and other causes can to crosslinked degree, 而引起塑 parts property can defect phenomenon.

40, 熟化

in hot solid property resin or plastics process in, due to time long or temperature degree high and other causes 引起塑 parts property can decline phenomenon.

41, understanding poly

塑 parts 暴露于 very high temperature degree in, polymer is mono or relatively low molecular weight polymer.

42, aging

塑 parts 暴露于自然 or ring conditions lower, property can time 延续而变 bad phenomenon.

43, 架桥

add material due to material material 壅塞, or viscous and other formed 妨碍顺利 lower material 拱形, this phenomenon 也称结拱.

44, bubbles

塑 parts surface belt/tape has obvious also bubbles defect.

45, 起霜

additives from parts internal outer to surface formed 云雾状 or white powder material defect.

46, and 渗出

plastics in certain separation to and its 接触 材 material upper or to parts surface phenomenon, type separation can can 自残余 emulsification agent, stabilizer, lubricant or increase agent, especially is increase agent use amount most easy 渗出.

47, solvent 胀

solid in liquid or in, due to mono pure absorption function, make its dimensions increase large phenomenon.