SIPA设备如何保证瓶坯质量(缺陷原因解决方案).doc

HOW TO OBTAIN PREFORM QUALITY如何保证瓶坯质量代码瓶坯缺陷 原因 解决方法P1Diffused opaqueness放射状不透明C15C29S19S7, see causes/solut.P8参照原因/解决方案P8P2aAll opaque — thread includedC11S12全部不透明一包括螺纹部分C48S48P2bAll opaque — thread excludedC35S27全部不透明一螺纹部分除外C29S21，S7, see causes/solut. P8参照原因/解决方案P8P3Bent as a"banana^C4S25, S3b香蕉状弯曲C26S22, S14, S39C17S15C34S10, S8C10S24P4Crystallized in the ring under theC6S3b, S40thread （support ring）螺□下部结晶（支撑环）C7S2P5Crystallized in the injecting point注塑点结晶C28S20, S9, S18P6aIncomplete in the threadC33S24螺□不完整C19S1C27S13C5S3a, S1C14S15C13S14C3S5C7S2P6bIncomplete in the bodySee P6aSee P6a坯体不完整C38S36P7Of yellowish color a) allC8S12, S30淡黄色 整体C25S21b) on the bottomC27S30底部C30S18bP8Too hot (> 100+120 C)C32S6过热 （:>100—120 度）C2S8, S31, S41C27S30, S19bC34S8, S10C35S26C12S28C31S6P9Too cold (< 100 C)C32bS6b过冷 （<100度〉C35S27C37S8P10Flash on the joint lip-cavity模唇与模腔的合模线有凸起C1C21C36C27C20C2C39S14, S22, S31S3bS3bS13, S18b，S21S22, S31S8S42P11Flash at the edge of the mouth嘴部边缘有凸起C1C1cC27C21C39S14, S22, S31C43S13, S30S3bS42P12Random hollow marks不规则的凹痕C10C15C14C13S24S13, S30S11S11, S15P13Vertical flash in the thread - only 1螺□部分有垂直的凸起 -只有一个-all-全部C1As P11S14As P11P14aOpaque diffused bubbles不透明散布的气泡C24S12, S34, S19P14bNot opaque diffused bubbles透明散布的气泡C12S28, S33, S32P15Defective injection point (presence of flashes, threads or deformation in the center)注塑点欠缺(出现凸起，螺旋或中部变形)C14C13C33 &/o C33b C30C38S11S11, S37S25, S24S18, S18bS36P16Thread deformed or flattened螺□变形或变平C16S29, S31P17aVertical opaque continuous stripe连续的不透明的垂直纹线C30C14S18S11P17bVertical opaque not continuous stripe with local flakes不连续的带有局部薄片的不透明垂直纹线C23S18, S21P18Black impurities (spots)黑色杂质(污点)C9C22C23S35S35S30P19White impurities (spots)白色杂质(汚点)C24C23S12, S34S30, S18, S21P20Too much acetaldehyde (> 4-5 ppm) 乙醛含量过高(:>4-5ppm)C8C22C12S12, S30, S23S17S28P21Deformed on the top and bottom顶部及底部变形C44S44P22Totally deformed整体变形C15C45C46S13545546P23Preform inserted in another瓶坯插在另一个上C41S47P24Deformed on the ring and mouth环部及嘴部变形C47S29P25Presence of water drops出现水滴C48S48P26Incomplete perform瓶坯不完整C3S5P27Presence of formerly injected material in the cavity模腔中出现以前注射的原料C13C14S11S11P28Too long太长C49S49P29Too short太短C50S50P30Scratches on the thread螺纹有擦痕C51S51Pxx = Preform 瓶坯 no xx Cxx = Cause 原因 n xx Sxx = Solution 解决方案 no xxHOW TO OBTAIN PREFORM QUALITY： CAUSES如何保证瓶坯质量：原因编码 原因C1Incorrect lip closure due to mechanical defect or damage由于机械错误或损坏导致模唇关团错误C1bIncorrect lip support bar closure with core support plate模唇支撑杆及模芯支撑板的错误矢闭C1cIncorrect coupling between lip and core support模唇与模芯支撑的错误连接C2Mold temperature too high模具温度过局C3Insufficient injector charge注射器装料不足C4Flexing of injection core due to too high values of PET pressure or PET injection speed由于PET压力过高或者PET注射速度过快导致模芯弯曲C5Injection too slow注射过慢C6Injection too fast and holding time incorrect注射过快及保压时间错误C7Insufficient air escape in the lips模唇内气体排出不畅C8Degraded material原料变质C9Presence of foreign material in the resin树脂中混有异物C10Badly compacted material严重压实的原料C11Badly dried material过度干燥的原料C12High speed of extruder screw挤压机螺杆过速C13Needle valve movement slowed due to dirt or oil in the supply air line由于气路中有油或杂质导致针阀运动过慢C14Needle valve movement with working pressure lower 6-5+8 bar 针阀运动工作气压低于6.5-8 barC15Incorrect melt temperature错误的熔料温度C16Preform not inserted correctly on conveyor belt瓶坯没有正确地插到钢带上C17Water in melt during injection stage在注射阶段熔料含水C18Extruder loop pressure too high挤压机压力曲线过高C19Insufficient injector pressure注射压力不足C20Incorrect closing pressure in injection press注塑模关闭压力不正确C21Injection pressure/speed too high注射压力及速度过高编码 原因C22Poor quality of PETPET品质不好C23Residual material of the previous perform前一个瓶坯剩余残料C24Delay in fusion of the PET chips in the extruder挤压机中的PET粒子熔化延迟C25Excess temperature in the hot channels热通道温度过高C26Irregular wall thickness (eccentricity max 15 hundredths)壁厚不匀(偏心最大C27Melt temperature too high熔料温度过高C28Melting set point temperature too low熔化设定温度过低C29Preform temperature too high瓶坯温度过高C29bPreform temperature too low瓶坯温度过低C30Incorrect nozzle temperature注嘴温度错误C31Incorrect cycle time循环时间错误C32Mold movement cycle time too long模具运动循环时间过长C32bMold movement cycle time。