Shanghai Daoqin Plastics Co., Ltd.

hot runner separation sheet/plate types type more, effect/influence to separation sheet/plate property can good bad more factors in, most key/critical is and separation sheet/plate versus 通连接 注嘴, 注道以 and 搭桥. this parts and separation sheet/plate has can can using/adopting 螺栓连接, or is 螺纹连接, or is solid in pressure shrink parts upper, has can can meanwhile upper 述 3 types methods. 而每一 types methods 本身都 has 维护检修 specific requirements, requirements can more hot electrical 偶, 注嘴, sleeve/set, add hot sheet/slice.

　　 remove non product parts sales for 你说, this sleeve/set separation sheet/plate parts 无需经常检修 and 维护, has in use time rear, heavy 复进行 100 万次 injection ring, 才需清洗 and 检修. usually in separation sheet/plate use time rear, for sleeve/set and other internal parts 进行清洁工 as, utilizing clamping time remove thin sheet/slice and powder and other 残渣, and and degradation plastics. also 需知道 in 周末关 machine and 星期一早 upper 匆忙开 machine 时, separation sheet/plate inner force 变化情况, also has must attention/notes gate and 阀针 形状 has 否发生堵塞 phenomenon.

　　安装 and basic parts 需花费 time and can requirements, add upper this parts cost use, is hot runner separation sheet/plate is true positive easy factors. has separation sheet/plate sleeve/set and 安装工序 涉 and more 换注嘴 upper add hot sheet/slice or hot electrical 偶. another, if certain 特殊元 parts to 扰动, 形状发生改变, or by remove, separation sheet/plate plant/unit need full lower, 并进行彻底清洁, ensure separation sheet/plate outer maintain and light 洁.

 
in sleeve/set mold inner, usually 会渗漏出 a large amount of degradation resin.
 

　　 however, currently industry inner using/adopting is non easy type separation sheet/plate.

　　 Common defect

　　 if mold in injection machine upper, separation sheet/plate 出现溢 material Common types phenomenon is, in sheet/plate has 烟雾冒出, or has plastics melt in 意想不 to 方溢出. can can has multiple factors separation sheet/plate material, in processing production mold full 充模, is in separation sheet/plate certain add hot sheet/slice and hot electrical 偶发生断路. this issues 都提醒 plastics products processing especially attention/notes, in separation sheet/plate full material front, 立即停止 processing production, 并拆卸 mold.

　　由此 summary strip/profile experience, processing need 经常检修 mold, need and other to mold defect issues will 显现出, 才 拆卸 mold and separation sheet/plate.

　　 in many processing 厂看, hot runner separation sheet/plate 一旦出现渗漏就 mold lower 进行检修, equipment 停工似乎不 value. its 实不然, from 一开始出现渗漏 phenomenon, 需花费 8 ～ 10 small 时进行清理, can day rear more 花几天 功夫.

　　 if for separation sheet/plate already 经出现溢 material generate 一丁点 怀疑, can 放几粒红 color resin or other masterbatch material to injection nozzle 末端, rear for mold injection 2 ～ 4 次, 以确定发生渗漏 位置.

　　 solution issues 5 steps

　　1 拆卸

　　移开阀针 and clamping sheet/plate, mold 目测观察 separation sheet/plate 背面, 寻找导致溢 material causes, 判断阀针 is already 经出现 bending, 破裂, or abrasion loss, and ring in 阀针四周残留 溢 material amount and types type. separation remove sheet/plate upper resin material, make separation sheet/plate and electronics parts box/case can easy separation 离开, rear can separation for this parts 进行清洁.

　　2 清洁

　　 utilizing ultra- 声波清洁 clamping sheet/plate, separation sheet/plate runner, 平底钻孔, 阀针. again 手工清理注嘴, add hot device, hot electrical 偶接线, separation sheet/plate.

　　3 检查 analysis fault/failure

　　检查密封区域 has 否出现 obvious 裂缝; sheet/plate dimensions is positive combined 理; 连接螺栓 is 否出现松动.

　　4 assembly

　　 in has parts full heavy new assembly front, one-time electrical 路检查. if 一切都 positive 确无误, can heavy new separation sheet/plate.

　　5 most testing

　　进行 electrical testing 时, will separation sheet/plate upper add hot sheet/slice rise temperature most high processing temperature degree, meanwhile cooling water cooling 通道.

　　 above 5 steps requirements 依次进行.

　　 in 阀针式 gate type mold upper, design will and clamping sheet/plate versus 通, in clamping 时会发生 light micro 撞击, has can can make 阀杆移位而 make its temperature degree decline, if 你冒险 阀杆 端部拆掉, this also usually can will and separation sheet/plate temperature degree maintain in 250 F left right, from 而 需 relatively small function force 阀针也会 generate 移动.

　　 to 每一 阀杆都打 upper 标号, in its 端部标记出 solid 定位置, in belt/tape 标记号码孔洞 木 sheet/plate or plastics sheet/plate upper 面, ensure can versus separation and 直立状态放置.

　　拆卸 lower sheet/plate, 显露出 separation sheet/plate 背面, 首先观察红 color or other color resin flow 路径, if separation sheet/plate and 注嘴 密封 property 不佳, plastics melt 就会沿 retardant force most small direction flow, and is 以层流 methods 流经 导线槽孔, in 出现渗漏 初始点四周, resin large more 会发生烧焦 and degradation. this is 寻找导致 separation sheet/plate 发生渗漏 causes most methods.

　　 attention/notes melt resin “ injection 波纹” direction, from 渗漏开始处出现 波纹情况, especially 留意观察 resin melt 状况, most 靠近渗漏点 is 否出现 has 烧焦, separation sheet/plate inner most resin is still color maintain 不变.

　　经仔 fine rear 确定渗漏点, this 一部位 密封情况, rear again use copper rod and 凿刀切 remove block thin resin sheet/slice. if 觉 渗漏 causes can 疑, comprehensive remove plastics, 继续查找 causes. 判断注嘴 and separation sheet/plate between 密封状况 good bad, very easy and 确定, 需看连接 this between plastics strip/profile is light slip, plastics strip/profile upper has 否出现 flash.

　　至此, has can can to 发生渗漏 causes, can can 没发现 what can 疑之处. if this can causes, that lower 就 充 separation utilizing add hot and copper 质凿刀. add hot can soft runner inner plastics resin, utilizing add remove. remove amount plastics material rear, from separation sheet/plate sheet/plate upper will separation sheet/plate, 注嘴, electrical and other separation 离开. use 手工清理 separation sheet/plate and 注嘴并检查 rear, again use ultra- 声波清理模 sheet/plate. adjustment ultra- 声波舱 add hot temperature degree to 200F, toward front 倾斜模 sheet/plate, make resin melt 状态并 toward lower 滴落, 平底钻孔 and runner 也需轮换 add hot 清理.

　　待 use ultra- 声波清理模 sheet/plate rear, can will one-time property and separation sheet/plate separation 离开, and 感觉注嘴 and separation sheet/plate in 紧密配 combined lower separation 离情况, or 者查看松动 连接螺栓. 注嘴放 in rear, use copper 质刮刀清洁 separation sheet/plate. if gate positive 处于临界状态, 呈隐蔽 bending gate can can is 导致随 machine 出现渗漏 causes.