Rubber product tam tak chu molded a ni a, molding hnuah, vulcanization, products qualified physical property neia thil siam chhuah, a hmel lan dan chuan defect lian tak tak a nei lo a, mahse conventional trimming method chuan product appearance requirement a siam tha thei lo, burr te te a awm thei lo, manual repair emaw scrapping emaw a awm thei a, hei hian economic waste tam tak a thlen thei a ni.

Hetih lai hian, a thil siam chhuah mold clamping line structural design hi a pawimawh hle a, lip, overflow line leh overflow groove, etc. design dan tur a ni a, hetah hian sawifiah a ni lo ang, 'rubber mold design manual' tih hi i en thei ang.

He thuziak hian a tum ber chu formula leh process atanga sawifiah a ni a, a chhan chu mold hi design a nih fo avangin mold (economic waste) chu a siam danglam thei lo va, a tichhe thei lo bawk a, formula siam danglam tur formula engineer a zawng fo thin a, chu chuan a process chu a thlak danglam thei a, chu chuan tearing awlsam tak a thlen thei a ni.

Hetah hian formula siam that fo a tha lo, a chhan chu formula siam danglamna hian a chhunga physical leh chemical indicator tam tak chu rubber products hman dan tur a tlin leh tlin loh, a dang sawi belh ngai lovin, a solution-ah direct-in a tlin em tih a huam fo thin a ni:

1. Process temperature sang tak (mixing, smelting, parking) avang hian, rheometer hian vulcanization history chart ML, TS1 leh initial fluidity leh fluctuation dangte a en thin a, chu chuan trimming-ah harsatna a thlen thin.

Solution: Mixer cooling water system-a flow rate tihsan emaw, cold mold temperature machine hmang emaw (pipeline-a calcium scale tihfai fo) Mill hian roller chhunga cooling water flow tihpun nan roller chu a drill thei a, chu chuan temperature a tihniam thei (mixer method pawh a practical bawk) Parking a rang thei ang bera room temperature thlenga tihtlem nan chuan a tam zawka stack a tha lo va, chu chuan awlsam takin intermediate temperature sang tak a thlen thei a, a kang thei bawk.

2. Rubber material theh darh dan chu a inang lo va, local material sang tak avanga a sir lam chu tihchhiat a harsa hle.

Solution: Material delivery, material dispersion leh melting te chu a kalphung leh a hun hman dan tur ang taka ruahman dan tur ruahmanna siam dan tur angin, leh rubber dispersion additives te chu formula design-ah a ha zawngin dah theih a ni.

3. Vulcanization temperature a sang lutuk a, chu chuan brittle edges a thlen thin.

Solution: Vulcanization temperature chu product structure tling tak neiin thlang la, mitdel takin production capacity chu a zawm thei lo va, rubber entropy leh degree of vulcanization local structure a tichhia thei a ni.

4. Vulcanized rubber edge chu a thuk zawng a inang lo va, mold lip error pawh a lian hle.

Solution: Design error mamawh phuhruk nan mold chu siam danglam la, production mamawh phuhruk rawh.

5. Rubber material Mooney chu a lian a, rubber material 'green strength' chu a lian hle bawk.

Solution: Plastic-a siam a ni thei a, plasticity a tihziaawm thei a, rubber-a fluidity a ti ṭha thei bawk; Formulation hian Mooney viscosity leh Mooney te chu compound a kang a ni tih a ngaihtuah a.

6. Rubber material a fluidity a tha lo hle.

Solution: Formula design-naah hian fluidity ngaihtuah la, flow additives, dispersants, softener leh resins, etc., te chu rubber material-a fluidity siam that nan, mahse a pum puia inzawmkhawm chuan product design parameter leh production process mamawh a tlin tur a ni.

7. Rubber material a luang chhuak chu a thick a, a chhe thei lo.

Solution: Vulcanization mold pressure tihsan; thil siam chhuah ngai phuhrukna atana mold siam danglamna; Compound-a Mooney (stiffness) chu tihtlem la, chutiang chuan rubber chuan 'softness' leh fluidity tha zawk a nei ang.

8. Formula design hi a dik lo hle.

Solution: Formula hi kawng tam takah ngaihtuah a nih avangin, production mamawh, product design parameters leh qualification rate, etc. te phuhruk nan kan studio ah hian design bik kan hmu thei a, chu chuan cost-effective leh factory-friendly practical formulations a siam thei a ni.

9. A chhan dang: thil awmdan dik lo, a chhiat emaw, a agglomeration emaw a thil siamte; Raw rubber thlan chhuah hun chhung chu a nghet lo hle a; Blending glue hian 'liquid phase mixing'-a thil mamawh a tlin thei lo; vulcanization kalphung; accelerator matching; filler particle size insem darh dan; Resin melting leh a dangte.