1、Foaming hole 1、kut 1 .

A chhan:

(1) Foaming agent-a quality lama harsatna awmte;

(2) rubber material plasticity hniam;

(3) mixing temperature sang lutuk leh foaming agent a early decomposition;

(4) Rubber chu rei lutuk emaw, a lum lutuk emaw a nih chuan, foaming agent thenkhat chu a bo emaw, a chhe emaw a;

(5) Rubber-a vulcanization speed chu a rang lutuk a;

(6) Pressure a sang lutuk a, foaming agent gas-in a siam internal pressure a phak lo va, chu chuan foaming holes a tling tawk lo a;

Countermeasures: 1.1.

(1) foaming agent chu hun bituk chhunga a awm leh awm loh leh a tlin leh tlin loh enfiah;

(2) Rubber material plasticity chuan standard a tlin leh tlin loh enfiah la, plasticity a hniam lutuk chu mixing hmanga tihpun tur a ni a, hole siam awlsam zawk nan plasticity tihpun tur a ni

(3) Mixing machine-a discharge temperature a sang lutuk em tih te, roll temperature a san lutuk em tih te, rubber a kang em tih te enfiah rawh. Rubber material thenkhat mixing temperature sang tak nei te chu treatment tlemte nen an pawlh thei a, add foaming agent heavy industry nen pawh an inhmeh thei bawk;

(4) Rubber chu parking hun rei lutuk hnuah supplementary processing atan refining-ah dah leh tur a ni;

(5) Formula siamthat, vulcanizing agent-a critical temperature leh foaming agent-te decomposition temperature chu an inhnaih em tih enfiah la, vulcanization speed leh foaming speed match-a siam turin an inzawm khawm ang

(6) Machine pressure chu siamrem rawh.

2. Filling mold tling lo .

A chhan:

(1) Rubber hman tlem;

(2) Mold finish emaw mold emaw tling lo, tihfai ngai lovin hman rei lutuk, rubber luang chu a do theih loh tur a ni;

(3) Cavity structure chu a buaithlak a, rubber flowability chu a inmil lo va, hole a chhuah hnuah pawh mold chung lam a luah khat thei lo fo va, defect a siam a

(4) mold cavity kil thi tawha boruak chu a chhuak thei lo va, chutiang chuan rubber chu cavity-in a khat lo va, chu chuan glue tlakchhamna kil a thlen a

Countermeasures: 1.1.

(1) glue material rit zawng a awm theih nan pakhat leh pakhata rit;

(2) rubber-a tui awm dan (fluidity) siam hat;

(3) Mold siam danglam, air venting holes, mold structure, etc. design mumal tak siam.

3. Foaming holes inang lo (a lian lutuk emaw, a te lutuk emaw) .

Foam hole a lian lutuk a, a hardness leh density te chu standard a ni lo, closed hole chu joint hole a lo ni ang a, micro hole chu small hole a lo ni ang a, part thenkhat a collapse emaw part thenkhat chu a rawn thawn thei lo ang.

A chhan:

(1) foam agglomeration emaw particle emaw a coarse lutuk;

(2) mixing inang lo;

(3) compounding agent-a tui tamna, boruak emaw, rubber-a bawlhhlawh paih emaw;

(4) Vulcanization tling lo, mold hnuah pawh khur siam chhunzawm zel;

Countermeasures: 1.1.

(1) Foaming agent chu enfiah la, agglomeration phenomenon chu sieved tur a nih chuan, coarse particles chu a hmin theih nan a hmin tur a ni a, a pumin a inhmeh (or thin pass) tur a ni

(2) Agent tui chu a vawt hnuah a sang lutuk tur a ni a, rubber material-a boruak emaw, bawlhhlawh emaw chu la chhuak la, chutiang chuan a vulcanized kim vek ang.

4. Over-vulcanization emaw under-vulcanization emaw .

(1) Over-vulcanization .

General surface discoloration, eyelet te tak te, hardness sang, product edge cracking, operation dik lo avanga lo awm, emaw temperature sang lutuk avanga lo awm, vulcanization hun rei lutuk emaw instrument failure emaw chuan valve leh instrument te hian harsatna an neih leh neih loh an enfiah tur a ni a, chutah chuan operating rules chu khauh taka kalpui tur a ni.

(2) Vulcanization hnuaiah .

Vulcanization a tling tawk lo a nih chuan, mold chhuahsan hnua pawn lam pressure aiin pore chhung lam pressure chu a sang zawk a, rubber-in khur a thawn chhunzawm zel chuan êng chuan harsatna a nei tlem ang a, chakna a tha lo ang a, deformation lian tak a siam ang A rit chuan a khur a ti puak ang. Instrument leh valve-ah harsatna a awm leh awm loh a enfiah tur a ni a, operation rules chu khauh takin a kalpui tur a ni.

Note: Foam Products Control Quality Indicators .

(1) apparent density, a te zawk chuan a tha zawk;

(2) Mechanical chakna chu a tlangpuiin 0.5-1.6mpa a ni a;

(3) Static compression chu a nghet lo (permanent deformation);

(4) Harsatna;

(5) impact elasticity;

(6) Dynamic fatigue chhunzawm zel;

(7) Kum upa lam test (70 degree * darkar 70; degree 100 * darkar 24);

(8) Temperature hniam test.