Ukucaciswa kosayizi we-GB kokujwayelekile izitini ezikhanyisayo

Ubukhulu bangaphandle bezitini eziphikisayo ngesikhathi sokukhiqiza ngokuvamile buhlukaniswa ngamacala amabili. Esokuqala senziwa ngokuhambisana nosayizi we-GB wesitini esiphikisayo futhi okwesibili: usayizi we-non-GB. Osayizi abangewona ama-GB banosayizi wezitini ezimise okukhethekile, isibonelo, usayizi wangaphandle mkhulu, futhi umumo awushintshi kakhulu. Kodwa-ke, ubukhulu obukhethekile buyisimo sezinguquko ezinkulu kusayizi wangaphandle, futhi i-trapezoidal prismatic round noma i-concave-convex surface enezimbobo eziyindilinga yizitini ezimise okukhethekile. Lapho ukhiqiza, kuyadingeka ukunciphisa ukukhiqizwa kwezibunjwa ngoba izindleko zokukhiqiza ziphezulu kunosayizi we-GB. .

Izitini ezijwayelekile eziphikisayo zihlukaniswe ngezindinganiso ezijwayelekile kanye nokucaciswa okumise okukhethekile ngokuya ngokucaciswa, ubukhulu kanye nemingcele yezitini eziphikisayo. Ngokusho kwezinto ezihlukahlukene, izitini ezijwayelekile zokuphikisa kufanele zihlangabezane nezimo ezilandelayo;

(1) Izikali zokulinganisa zingadluli kwezine;

(2) Ingxenye yobukhulu bangaphandle bezitini eziphikisayo ingaphakathi kobubanzi obungu-1:4;

(3) Awekho amakhona ayimigede, imigodi nemigodi;

(4) Isisindo singama-2-8 kg (isitini sobumba) kanye no-2-10 kg (isitini esiphezulu se-alumina) ngokulandelanayo.

Okwezitini ze-silica, izitini ze-magnesia nezitini ze-alumina ze-magnesia, imikhiqizo evamile idinga ukuhlangabezana nalokhu okungenhla (1), (2), (3), futhi isisindo sihlukile: isisindo sesitini senhloso jikelele ye-silica singu-2- 6 kg. , isisindo sesitini se-magnesia nesitini se-aluminium magnesia singama-4-10 kg.

Izitini eziphikisayo ezinomumo okhethekile ziyimikhiqizo yezitini ephikisayo enobukhulu obuhlukene kusukela ekucacisweni okujwayelekile:

(1) Isilinganiso sobukhulu bangaphandle singaphakathi kwebanga elingu-1:6;

(2) Ayinawo amakhona ama-concave angaphezu kwamabili (okuhlanganisa namakhona amise okwe-arc) noma i-engeli ebukhali engu-50o kuya ku-75o, noma ingekho ngaphezu kwezingu-4;

(3) Isisindo singama-2-15 kg (isitini sobumba) kanye no-2-18 kg (isitini esiphezulu se-alumina) ngokulandelanayo.

Izitini ze-silica, izitini eziphikisayo ezimise okukhethekile kufanele zihlangabezane nezimo ezilandelayo;

(1) Isilinganiso sikasayizi sisonke singaphakathi kwebanga elingu-1:5;

(2) Ayinayo i-engeli ye-concave engaphezu kweyodwa, noma i-engeli ebukhali engu-50℃ˉ75℃, noma engekho ngaphezu kwezingu-2 (ngokwenani eliphelele);

(3) Isisindo singu-2-12 kg.

Ezitini ze-magnesia nezitini ze-alumina ze-magnesia, zonke ezinye izitini ze-magnesia nezitini ze-aluminium ze-magnesia ezingakwazi ukufakwa encazelweni yezitini eziphikisayo ezijwayelekile zibizwa ngokuthi izitini eziphikisayo ezimise okukhethekile.