General wan hkru ai lam gaw masa masum hpe hkan sa ra ai:
① Wan hkru ai arung arai ni nga ai.
②Katsit ai shara de du wa ai.
•ok jep ai lam law law nga ai. Shanhte kaw na langai mi n nga mat ai aten du hkra, wan hkru mat na re. Rai sai, wan n-gun hpe shayawm kau ai lam hpe lawu na lam ni hku nna galaw mai ai.
1. Helithermic reaction gaw ntsa kaw byin pru wa nna, katsi ai hpe shabyin ya lu ai.
Dai wan n-ga hpe n-gun n-gun shayawm ai lam gaw, n-gun n-gun n-rawng ai (sh) n-gup n-gu n-gun yawm ai lam hpe substrate hte hkrum katut chye ai, wan hkru ai lam a matu ra ai nbung katsi ai lam hpe shayawm ya lu ai; shing nrai, wan n-gun n-gun yawm mat ai majaw byin pru wa ai free radicals (sh) molecules ni gaw, The substance hte matut mahkai lu ai, dai gaw n-gun n-gun hte n-gun rawng ai hku bai htang ai, dai hku nna wan hkru ai lam a katsi ai rap ra lam hpe pat shingdang kau ya ai.
2. Non{1}} n-gun n rawng ai gas
Maga mi hku nna, non{0}} n-gun n rawng ai gas hpe shapraw ai gaw, polymer a ntsa kaw na oxygen hpe shapraw kau ya lu ai; maga mi de, wan hkru ai gas hpe shayawm kau nna, n-gun n rawng ai hte wan hkru ai lam hpe non{1}}combustible gas shapraw ai maga de galaw shangun ai.
3. Carbonized layer hpe npu kaw byin pru wa ai
Ntsa kaw na pru wa ai carbonization layer gaw nbung, katsi ai, etc. ni hpe daw kau ya lu nna, wan hkru chye ai arung arai ni hte oxygen ni a lapran na garan ginhka ai lam hpe pat shingdang lu ai, dai aten hta sha, polymer hpe n-gun n rawng hkra pat shingdang lu ai, "fuel" byin pru wa ai a lawan ai hpe shayawm ya lu ai.
4. Wan n-gun rawng ai arung arai ni hpe pat shingdang ai
Hpa majaw nga yang, phosphate, etc. ni hta carbonization hpe n-gun jaw ai akyu nga ai, wan hkru ai gas hpe shapraw ai lam hpe pat shingdang da ai.
5. N-gun n law ai ga hpe shabyin ya u .
Relative density law ai gas gaw wan hkru ai gas hte nbung hpe galai shai ai lam hpe pat shingdang lu ai.
Nang gaw wan n-ga retardant resin hpe myit lawm ai rai yang, anhte hpe matut mahkai mai ai!
