輪胎外觀缺陷分析

1、輪胎外觀缺陷分析apparent defect analysis of tire外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution缺膠lack of rubber胎側(cè)缺膠 sidewall lack of rubber半成品部件材料不足 insufficient materials for semi-finished part在半成品部件生產(chǎn)過程中 保證部件尺寸、重量符合工 藝標(biāo)準(zhǔn)make sure dimension and weight can meet the technological standard during manufacturing proce

2、ss of the semi-finished part胎胚放偏deflected green tire裝胎時(shí)要放正，合模時(shí)多松 壓幾次make sure the tire is installed correctly, and release and press the tire for multiple times during mould closing胎側(cè)表面臟，白灰塵、油污 等surface of the sidewall is dirty and covered with dust, oil dirt, etc.裝胎前仔細(xì)檢查胎側(cè)表面， 保證胎胚清潔check the surfac

3、e of the sidewall carefully before installing the tire, make sure the green tire is clean部件停放時(shí)間過長，影響表 固黏性和流動(dòng)性part has been placed for a long time, and the surface stickiness and fluidity are affected胎胚必須按先后順序及時(shí) 硫化the green tires should be cured sequentially in time胎側(cè)有氣泡sidewall has bubbles刺破后壓實(shí)、壓平pi

4、erce the bubbles, then compact and flatten the sidewall模型內(nèi)積水mould is internally provided with accumulated water裝胎前模具吹干、吹凈，保 證模具清潔，氣孔流暢外觀缺陷apparent defect產(chǎn)生原因cause解決措施solutiondry and clean the mould by blowing before installing the tire, make sure the mould is clean, and the air holes are smooth模具跑氣孔

5、位置不當(dāng)incorrect positions of mould air holes增加跑氣孔increase the number of air holes硫化壓力、溫度過低curingpressure andtemperature are too low提高硫化溫度、壓力，保證 硫化溫度、壓力分布均勻， 使之符合工2規(guī)定improvethecuringtemperature and pressure make sure the vulcanization temperature and pressure are evenly distributed, so as to meet the t

6、echnological regulations膠囊夾盤泄漏bladder chuck is leaked重新上火盤reinstall the chuck胎圈缺膠 bead lack of rubber胎圈部位排氣孔堵塞exhaust holes in the bead are blocked保證模具清潔、氣孔流暢make sure the mould is clean, and the exhaust holes are smooth氣密層、耐磨膠厚度或?qū)挾?不夠thickness or width of the inner liner and the wear rubber is insu

7、fficient保證氣密層、耐磨膠厚度或 寬度穩(wěn)定、達(dá)標(biāo)make sure thickness or width of the inner liner and the wear rubber can meet the standard簾布寬度過小，硫化時(shí)簾布 拉伸，鋼絲圈局部上抽，造 成該部位膠料不足width of textile cord is too small, the cord fabric will be保證簾布寬度穩(wěn)定、達(dá)標(biāo)make sure the width of the cord fabric is stable and can meet the standard外觀缺陷a

8、pparent defect產(chǎn)生原因cause解決措施solutiontensioned during curing,bead will be pulled upwards partially, namely, the rubber compound at that portion will be insufficient鋼絲圈反包不實(shí)bead is turned up weakly成型反包壓實(shí)form a shape, turn it up, and compact it鋼絲圈直徑過大，鋼絲圈底 部相應(yīng)部位需要更多的膠料 來填充diameter of the bead is too larg

9、e, and corresponding portions at the bottom of the bead need to be filled with more rubber compounds保證鋼絲圈直徑穩(wěn)定、達(dá)標(biāo)make sure the diameter of the bead is stable and can meet the standard其余相應(yīng)同胎側(cè)缺膠other corresponding sidewalls lack of rubber其余相應(yīng)同胎側(cè)缺膠other corresponding sidewalls lack of rubber雜質(zhì)impurities

10、胎胚表卸粘有油污，硫化時(shí) 脫落，輪胎表面肩雜質(zhì)印痕 surface of the green tire has oil dirt and will be fallen off during curing, surface of the tire has impurity marks強(qiáng)化員工責(zé)任心，嚴(yán)格落實(shí) 互檢查工作，出現(xiàn)油污必須 用汽油等揮發(fā)劑處理控制 后再生產(chǎn)strengthen the sense of responsibility of the staff, strictly implement the mutual inspection operation, and use prop

11、ellant, such as gasoline, to process and control oil dirt before production膠料或者胎胚在搬運(yùn)過程中 后落地現(xiàn)象，導(dǎo)致粘后雜物 rubber compound or green tire is fallen to the ground during handling, therefore,加強(qiáng)生產(chǎn)過程現(xiàn)場管理，保 證胎肌表面清潔strengthenthesitemanagementduringproduction, make sure the外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution

12、the rubber compound or the green tire is covered with impuritiessurface of the green tire is clean胎胚架臟，有雜物green tire rack is dirty and covered with impurities加強(qiáng)胎胚架衛(wèi)生清理，及時(shí) 消除異物strengthen the sanitation anc cleaning of the green tire rack, and remove foreign objects in time膠料本身有雜物，硫化時(shí)露 出rubber compoun

13、ds are provided with impurities, and the impurities are exposed during curing加強(qiáng)對(duì)原材料、膠料各類半 成品生產(chǎn)時(shí)的控制，避免混 入雜物，發(fā)現(xiàn)雜物及時(shí)剔除 strengthen the control for raw materials, rubber compoundsandsemi-finishedproductsduring production to prevent impurities from mixing, and remove the impurities in time裝胎前模具內(nèi)有異物未消除fore

14、ign objects in the mould are not removed before installation of the tire加強(qiáng)硫化自檢及清模，保證 設(shè)備清潔strengthen self-inspection of curing and mould cleaning, make sure the equipment is clean圓角round corner花紋圓角patternedroundcorner模具花紋氣孔堵或設(shè)計(jì)不合 理、排氣/、暢patterned air holes in the mould are blocked or the design is un

15、reasonable, and the air cannot be exhausted smoothly加強(qiáng)模具清洗及氣孔疏通， 對(duì)設(shè)計(jì)不合理氣孔進(jìn)行改 進(jìn)或追加strengthen the cleaning of the mould and unclogging of the air hole, improve the air holes with unreasonable design, or increase the number of air holes模具表面粗糙，膠料流動(dòng)困對(duì)模具表面粗糙進(jìn)行整修，外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution難su

16、rface of the mould is rough, the rubber compounds are difficult to move及時(shí)淘汰外觀不好模具repair the mould with rough surface, remove unattractive mould in time胎胚胎面粘有油跡或內(nèi)噴涂 液等雜物tread of the green tire is covered with oil dirt or is internally covered with spray liquid, etc.保證胎胚表面清潔make sure the surface of th

17、e green tire is clean膠料焦燒時(shí)間短、流動(dòng)性差scorch time of the rubber compound is short, and the liquidity is poor改善胎回膠料流動(dòng)性能，延 長膠料的焦燒時(shí)間improve the liquidity of the tread rubber compound, prolong the scorch time of the rubber compound模具表面有油等污物surface of the mould is covered with dirt, such as oil保證模具清潔make sure

18、 the mould is clean子口圓角chafer round corner膠囊與夾盤涂隔離劑太多， 子口部位膠料不能充分模腔 bladder andchuck arecovered withtoo manyseparant, rubber compounds at the tire bead are not sufficient for mould cavity隔離劑噴灑適度，不能過多spray separant properly夾盤螺紋未上緊有間隙the chuck threads are not tightened and have clearance旋緊火盤螺紋 rotate

19、the chuck thread tightly子口直徑過大，圈口部位膠 料不足diameter of the tire bead is too large, rubber compounds at the tire ring are insufficient保證子口直徑穩(wěn)定、達(dá)標(biāo)make sure the diameter of the tire bead is stable and cai meet the standard裝胎時(shí)胎圈定位/、止，胎圈裝胎時(shí)要放正，合模時(shí)多松外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution部位空隙過大the bead is i

20、ncorrectly positioned during installation of tire, and the gap in the bead is too large壓幾次make sure the tire is installed correctly, and release and press the tire for multiple times during mould closing定型高度過高，膠囊與夾盤 內(nèi)壓蒸汽泄露the molding height is too high, the internally-compressed steam in the bladder

21、 and chuck is leaked確保定型高度合理make sure the molding height is reasonable胎側(cè)或胎圈包布諄度偏小導(dǎo) 致子口膠料不足the flipper thickness of sidewall and bead is too small, which results in the fact that the rubber compounds at tire bead are insufficient保證胎側(cè)或胎圈包布尺寸 穩(wěn)定、達(dá)標(biāo)make sure the flipper thickness of sidewall or bead is

22、stable and can meet the standard氣泡bubble胎側(cè)或胎體線表面有雜質(zhì)或 揮發(fā)分surface of tire body line or sidewall is covered with impuritiesor volatilecomponents保證半成品部件清潔make sure the semi-finished part is clean膠料各類半成品未壓實(shí)，有 氣泡semi-finished products made from rubber compounds are not compacted and have bubbles胎體線接頭處易有泡，

23、必須 壓實(shí)the joint of tire body lines is prone to suffering from bubbles, therefore, it should be compacted胎側(cè)、胎體簾布、胎圈包布、 氣密層膠等膠料黏性差，導(dǎo) 致成型時(shí)各部件間存有氣體保證各工序膠料黏度穩(wěn)定、達(dá)標(biāo)make sure the stickiness of外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution過多rubber compounds, such as sidewall, carcass ply, bead chafer and inner line

24、r, are poor in stickiness, which results in the fact that gas between parts is too much during moldingrubber compounds in each procedure is stable and can meet the standard模具排氣/、佳mould is poor in exhausting改進(jìn)模具結(jié)構(gòu)improve the structure of the mould硫化溫度、壓力不達(dá)標(biāo)curing temperature and pressure cannot meet

25、the standard確保硫化溫度、壓力穩(wěn)定、 達(dá)標(biāo)make sure the curing temperature and pressure are stable and can meet the standard變形deformation主要出現(xiàn)在出模后抽真空效 果差，膠囊拉直所致 deformation is mainly caused by poor vacuuming effect after mold stripping and straightening of bladder對(duì)硫化機(jī)抽真空進(jìn)行檢查， 出現(xiàn)性能下降立即整修 check vacuuming of curing ma

26、chine, and repair it as soon as the performance is reduced由于噴涂不均造成硫化結(jié)束 后，胎里局部匕膠囊脫離困 難造成tire inside parts and bladder are difficult to be separatee due to uneven spraying after curing提高噴涂質(zhì)量，使表面噴涂 均勻improve the spraying quality, and spray the surface evenly開模時(shí)硫化膠囊的影響effect on curing bladder during mou

27、ld opening確保開模時(shí)內(nèi)壓為零make sure the internal pressure is zero during mould外觀缺陷apparent defect產(chǎn)生原因cause解決措施solutionopening硫化膠囊老化，胎圈區(qū)周向 膨脹不均一the curing bladder is aged, expansion at the bead area is uneven裝胎前檢查膠囊質(zhì)量，確保 有問題的及時(shí)更換check the quality of the bladder before installing the tire, and replace the de

28、fective bladder in time硫化定型壓力不足，導(dǎo)致膠 料不能合理流動(dòng)the curing molding pressure is insufficient, which results in the fact that the rubber compound cannot flow reasonably確保硫化定型壓力穩(wěn)定、達(dá) 標(biāo)make sure the curing molding pressure are stable and can meet the standard硫化裝模時(shí)對(duì)胎胚子口部位 的機(jī)械損傷the chafer at the green tire is m

29、echanically damaged during curing mould filling正確、適度地裝模，嚴(yán)禁遠(yuǎn) 距離扔、甩carry out mould filling correctly and appropriately, do not throw or swing the mould remotely開模圖度過局mould opening height is too high根據(jù)/、同規(guī)格設(shè)定/、同開 模圖度set different mould opening heights according to different specifications輪胎軌道運(yùn)輸時(shí)擠壓變形tir

30、e is deformed by squeezing duringtracktransportation保證運(yùn)輸軌道暢通make sure the transportation track is unblocked胎圈露線exposed cord in bead胎胚子口直徑過小，硫化裝 模時(shí)火盤擠壓子口材料嚴(yán)重diameter of green tire bead is too small, and the material at the tire bead is seriously squeezed by the chuck during保證子口直徑穩(wěn)定、達(dá)標(biāo)make sure the di

31、ameter of the tire bead is stable and cai meet the standard外觀缺陷apparent defect產(chǎn)生原因cause解決措施solutioncuring mould filling成型機(jī)頭寬度偏小the building drum width is relatively small調(diào)整施工標(biāo)準(zhǔn)adjust the construction standard裝胎高度過低或硫化定型尺 寸過大。胎胚子口處夾盤非 正常接觸，外壓作用卜膠料 非正常流動(dòng)將鋼絲暴露出來 the mould filling height is too low or t

32、he curing molding dimension is too large. the chuck at the green tire tire bead is abnormally contacted, the rubber compounds are driven by the external pressure abnormally to expose the steel wire確保定型高度、尺寸適度make sure the molding height and dimension are appropriate裝胎時(shí)間過長，子口包膠在 模具上停留時(shí)間過久，子口 包膠發(fā)軟流失，引

33、起胎圈露 線the time for mould filling is too long, the tire bead rubber coating has been reserved on the mould for too long, and the tire bead rubber coating is softened and drained, which results in the fact that the cord in bead is exposed及時(shí)硫化，及時(shí)卸胎carry out curing in time, and remove the tire in time胎圈

34、橢圓度過大，短軸方向 會(huì)經(jīng)常出現(xiàn)露線ovality of the bead is too large, cord in the short axle direction is often exposed確保胎圈形狀穩(wěn)定、達(dá)標(biāo)make sure the bead shape is stable and can meet the standard裝胎時(shí)裝偏造成胎圈局部偏確保裝胎裝正外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution薄引起露線the tire is deflected during installation, which results in the f

35、act that cord will be exposed due to thinner parts of the beadmake sure the tire is installed correctly窩氣air clogging硫化膠囊選型不合理，膠囊 與胎胚不匹配type of the curing bladder is selected unreasonably, the bladder cannot match with the green tire合理選用膠囊，使其尺寸與 胎肌匹配select bladder reasonable make sure the dimension

36、car match with the green tire一、二次定型壓力偏低primary and secondary molding pressures are low適度提高一、二次定型壓力appropriately improve the primary and secondary molding pressures模具排氣堵塞exhaust of mould is clogged改進(jìn)或修改模具improve or modify the mould合模速度過快the mould closing speed is too fast減緩合模速度，多松壓幾次slow down the mou

37、ld closing speed, and release and press the mould for multiple times骨架與膠料界面溶劑揮發(fā)不 盡solvent between skeleton and rubber compound interface is not completely volatilized骨架涂膠后要干燥dry the skeleton after glue coating新膠囊(膠囊使用次數(shù)少)new bladder (the bladder is used for fewer times)胎面與帶束層曲率不匹配 curvature of tread

38、 cannot match with the curvature of the breaker調(diào)整胎面尺寸adjust the tread dimension外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution設(shè)備抽真空功能下降vacuuming function of the equipment is declined檢修抽真空機(jī)構(gòu)check and repair the vacuuming mechanism鋼絲圈上抽(寬窄不一)upward pulling of bead (differentwidth)胎側(cè)、氣密層、胎體簾布、 鋼絲包布等組合件厚度過大 或過

39、小thickness of assembly parts, such as sidewall, inner liner, carcass ply, bead wrapper, is too large or too small確保胎側(cè)、氣密層、胎體簾 布、鋼絲包布等組合件厚度 穩(wěn)定、達(dá)標(biāo)make sure the thickness of the assembly parts, such as sidewall, airtightness layer, tire body cord fabric, steel wire flipper, is stable and can meet the s

40、tandard膠囊充氣膨脹不均勻，造成 胎圈周向材料分布/、均 inflation and expansion of the bladder are uneven, which results in the fact that the peripheral materials at the bead are unevenly distributed確保膠囊充氣膨脹均勻make sure the bladder is evenly inflated and expanded定型高度過低或過高，子口 材料非正常流動(dòng)the molding height is too low or too high,

41、 the tire bead materials flow abnormally確保定型高度適度、達(dá)標(biāo)make sure the molding height is appropriate and can meet the standard裝胎/、止，子口與火盤不能 很好吻合the tire is installed incorrectly, the tire bead cannot match with the chuck裝胎裝正，定中定正install the tire correctly, and set the center correctly爛邊broken edges硫化溫度降低c

42、uring temperature is lowered檢查熱板溫度check the platen temperature模具凹處窩氣air clogged at the concave portion in the mould改進(jìn)模具結(jié)構(gòu)improve the structure of the mould外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution裝模時(shí)模具溫度過低mould temperature is too low during installation of the mould模具充分預(yù)熱sufficiently preheat the moul

43、d焦痕scorch胎胚存放時(shí)間過長the green tire has been store for too long嚴(yán)格控制胎胚存放時(shí)間，及 田寸生產(chǎn)硫化control the storage time of the green tire strictly, and carry out production and curing in time合?？p處或接頭處開 裂cracks in mouldclosing seam or joint胎胚被污染the green tire is polluted加強(qiáng)物料管理，保證膠料清 潔strengthen the material management

44、, make sure the rubber compound is clean壓力不足insufficient pressure提圖硫化壓力，檢查是否啟 掉壓improve the curing pressure and check if pressure is dropped胎胚存放時(shí)間過長the green tire has been store for too long嚴(yán)格控制胎胚存放時(shí)間，及 田寸生產(chǎn)及時(shí)硫化control the storage time of the green tire strictly, and carry out production and curing

45、in time隔離劑(脫模劑)噴涂過多spray too much separant (releasing agent)脫模劑噴涂應(yīng)適量spray the releasing agent appropriately接頭處未壓平、壓實(shí)joint is not flattened and compacted確保接頭處壓平、壓實(shí)make sure the joint is flattened and compacted欠硫（起泡呈海綿狀）insufficient vulcanization膠料中含揮發(fā)性物質(zhì)較多there are plenty volatile substances inrubber嚴(yán)格控制各工序，減少揮發(fā) 性物質(zhì)外觀缺陷apparent defect產(chǎn)生原因cause解決措施solution(sponge-like bubbles)compoundstrictlycontroleachprocedure, reduce volatile substances模具型腔不潔the mould cavity is not clean清潔模具型腔clean the mould cavity硫化溫度過高curing temperature is too high調(diào)整硫化溫度，使之符合