Rubber product tam tak chu mold a ni a, molding, vulcanization hnuah qualified physical properties nei products hmuh theih nan product hmel lan danah hian chhiatna lian tham a awm lo a, mahse conventional trimming method hian product hmel lan dan mamawh chu a siam tha thei lo va, burr te te a awm a, chu chu lakchhuah theih loh a ni a, manual repair emaw scrapping emaw hian economic waste nasa tak a thlen thin.

Hetih lai hian, product-a mold clamping line structural design hi a pawimawh hle a, lip design dan tur, overflow line leh overflow groove, etc. te hi hetah hian sawifiah a ni lovang, 'Rubber Mould Design Manual' hi i en thei ang.

He thuziak hian a tum ber chu formula leh process atanga sawifiah a ni a, a chhan chu mould hi design a nih fo avangin mold chu a siam danglam thei lo va, a scrap thei lo (economic waste), formula engineer a zawng fo thin a, formula siamthat emaw, a kalphung thlak danglam emaw chuan awlsam taka tearing a awm theih nan.

Hetah hian formula siamthat fo hi a tha lo, a chhan chu formula siam danglam hian a chhunga physical leh chemical indicator tam takin rubber products hman dan tur a tlin leh tlin loh a huam fo thin a, sawi belh ngai lovin, solution-ah direct-in:

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

Solution: mixer cooling water system flow rate tihsan emaw, cold mold temperature machine hmang emaw (pipeline-a calcium scale chu tihfai fo ang che) Mill hian roller chu a drill thei a, chu chuan roller chhunga tui lum luang chhuak a tipung thei a, chu chuan temperature a tihhniam thei a ni (mixer method pawh a tangkai hle); Parking a rang thei ang bera temperature chu room temperature thlenga tihhniam nan, a tam thei ang ber stack a tha lo a, hei hian awlsam takin intermediate temperature sang tak a thlen thei a, scorching a thlen thei bawk.

2. Rubber material dispersion chu a inang lo va, local material sang lutuk avanga a sir chu tihchhiat a harsa hle.

Solution: Material delivery order leh hun tur chu a remchan dan angin ruahman la, material dispersion leh melting chuan process mamawh a tlin a, formula design-ah rubber dispersion additives pawh a remchan dan angin dah theih a ni.

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

Solution: vulcanization temperature thlang la, product structure mumal tak nen, mitdel takin production capacity a zawm thei lo, rubber entropy a tichhia a, vulcanization degree local structure a danglam bawk.

4. Vulcanized rubber edge hi a thickness a inang lo va, mold lip error pawh a lian hle.

Solution: Design error mamawh ang zela siam danglam leh production mamawh phuhruk turin mold chu siam danglam rawh.

5. Rubber material-a Mooney hi a lian a, rubber material-a 'Green strength' a lian bawk.

Solution: Plasticized a ni thei a, plasticity a tihtlem thei a, rubber fluidity a ti tha thei bawk; Formulation-ah hian compound-a Mooney viscosity leh Mooney scorching te ngaihtuah a ni.

6. Rubber material a fluidity a tha lo.

Solution: Formula design dawnin fluidity ngaihtuah la, flow additives, dispersants, softeners leh resins, etc. te dah la, rubber material fluidity tihchangtlun nan, mahse a pum puia combination hian product design parameter leh production process mamawh a tlin tur a ni.

7. Rubber material a overflowing edge chu a thim a, a chhe thei lo.

Solution: vulcanization mold pressure tihpun; Production mamawh phuhruk nan mold siam danglam; Compound Mooney (stiffness) tihtlem la, chutiang chuan rubber hian 'softness' leh fluidity a nei tha zawk ang.

8. Formula design hi a dik lo.

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

9. A chhan dang: thil awmte chu a dik lo taka dah, a chhiat emaw, agglomeration emaw; Raw rubber thlan chhuahna scorching period hi a nghet lo hle a; Blending glue hian 'liquid phase mixing' mamawh a phuhruk thei lo; vulcanization system hmanga siam chhuah; Accelerator nena inmil; filler particle lian leh te insem dan; Resin melting leh a dangte.