1、Foaming holes tling lo

A chhan: 1.1.

(1) foaming agent quality lama harsatna awm;

(2) rubber thil siam plasticity hniam tak;

(3) mixing temperature sang lutuk leh foaming agent chu a chhe hma lutuk;

(4) Rubber chu rei lutuk emaw, temperature sang lutuk emaw-ah dah a ni a, foaming agent ṭhenkhat chu a vawt emaw, a chhe emaw a;

(5) Rubber vulcanization speed a chak lutuk a;

(6) pressure a sang lutuk a, foaming agent gas-in a chhunga pressure a siam aia tam a nih avangin foaming holes tling lo a awm a

A do let dan tur: 1.1.

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

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

(3) Mixing machine atanga discharge temperature a sang lutuk em tih te, roll temperature a sang lutuk em tih te, rubber a kang em tih te enfiah thin ang che. Rubber material thenkhat mixing temperature sang tak chu treatment tlemte nen emaw, foaming agent heavy industry dah belh emaw pawh a ni thei;

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

(5) formula adjustment, vulcanizing agent critical temperature leh foaming agent decomposition temperature te chu a inhnaih em tih enfiah a, vulcanization speed leh foaming speed inmil turin an inzawm khawm a

(6) machine pressure chu siamrem rawh.

2. Filling mold tling lo

A chhan: 1.1.

(1) Rubber hman tlem;

(2) Mold finish tling lo emaw, tihfai loha rei tak hman tawh mold emaw, rubber luang chhuak chu a dodal thei a;

(3) Cavity structure hi a buaithlak a, rubber flowability pawh a inmil lo va, a tam zawkah chuan hole chhuah hnuah mold chunglam chu a luah khat thei lo va, chhiatna a siam thin

(4) Mold cavity dead corner-a boruak chu a chhuak thei lo va, chutiang chuan rubber chu cavity-ah a khat lo va, chu chuan a sir chu glue awm lohna a thlen a

A do let dan tur: 1.1.

(1) Glue material rit zawng hriat chian nan pakhat hnu pakhata rit;

(2) rubber-a fluidity tihchangtlun;

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

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

Foam hole hi a lian lutuk a, product hardness leh density hi standard a ni lo a, closed hole chu joint hole a lo ni ang a, micro hole chu hole te tak te a lo ni ang a, a then chu a chim emaw a then chu a chho thei lo emaw a ni.

A chhan: 1.1.

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

(2) inhmeh lo taka inhmeh lo;

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

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

A do let dan tur: 1.1.

(1) foaming agent chu enfiah la, agglomeration phenomenon chu sieved tur a nih chuan, coarse particles chu crushed tur a ni a, fully mixed (or thin pass) tur a ni a, a ruala theh darh tur a ni

(2) with agent moisture chu a vawt hnuah a sang lutuk tur a ni a, rubber material-a boruak emaw bawlhhlawh emaw chu paih chhuak tur a ni a, chutiang chuan a vulcanized kim thei ang.

4. over-vulcanization emaw under-vulcanization emaw tih a ni

(1) Vulcanization tam lutuk

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

(2) vulcanization hnuaiah

Vulcanization a tlem chuan mold atanga a chhuah hnua pore chhung lam pressure chu pawn lam pressure aiin a tam zawk a, rubber hian khur a thawn chhunzawm zel chuan light hian hardness a ti hniam ang a, a chakna a tichhe ang a, deformation lian tak a siam ang a rit chuan a zungte chu a puak darh ang. Instrument leh valve-ah harsatna a awm leh awm loh a enfiah tur a ni a, operation rules khauh takin a kalpui tur a ni.

Note: Foam products hian quality indicator a control thin

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

(2) mechanical strength chu a tlangpuiin 0.5-1.6Mpa a ni a;

(3) static compression hmanga tihdanglamna awm reng;

(4) a khauhzia;

(5) thil thleng (impact elasticity) a awm a;

(6) chakna (dynamic fatigue) chhunzawm zel;

(7) tar test (degree 70 * darkar 70; degree 100 * darkar 24);

(8) temperature hniam test.