Dhuumaha birta ee caagga ah
Tuubooyinka birta ah ee caagga ah waxaa loogu talagalay in lagu isticmaalo codsiyada bamgareynta ee kala duwan.Codsiyada sida dareeraha wax lagu shubo, bambooyinka cadaadiska sarreeya, khadadka dabada dheer, codsiyada bamka qulqulaya iyo tuubooyinka culeyska.Dhamman kasta oo leh shaabad vulcanized ah oo caag go'an.
Dhuumaha birta dahaarka leh ee xidhashada u adkaysta iyo daxalka u adkaysta waxay ka samaysan tahay tuubo bir ah oo caadi ah oo ah walxo qaabaysan oo isticmaalaya sifooyin aad u wanaagsan oo ah xidhashada u adkaysta, daxalka u adkaysta iyo kulaylka u adkaysta sida lakabka dahaarka.Waxaa lagu daray tignoolajiyada gaarka ah oo leh dhejis heersare ah.Inta badan loo isticmaalo biraha, tamarta korontada, warshadaha kiimikada, batroolka, dhuxusha, sibidhka iyo meelaha kale ee warshadaha.Shaqada macdanta, waxaa si weyn loogu isticmaalaa habka gudbinta dabada miinada, dhuxusha dib u buuxinta iyo goobaha nidaamka dhuumaha ee la xidhiidha.Gaar ahaan, dhuumaha ayaa aad ugu habboon gudbinta heerkulka u dhexeeya -50 ° C ilaa +150 ° C dhexdhexaad ah, taas oo ay fududahay in la xidho iyo daxalka.Waxaan kordhin karnaa dhumucda derbiga ee geeska tuubada iyadoo loo eegayo baahida macaamilka, sidaas darteed kordhinta nolosha adeegga.Dhanka kale, nolosha adeegga ee tuubada birta ah ee caagga ah waxay gaari kartaa 15-40 sano guud ahaan.Tuubbada waxa la rogi karaa ku dhawaad 90 darajo 6-8 sano oo adeeg ah kadib.Mar kasta oo wareeg ah waxay kordhin kartaa nolosha adeegga, birta birta ayaa si isdaba joog ah loogu dhejin karaa caag saddex ilaa afar jeer, sidaas darteed waxay yaraynaysaa isticmaalka kharashyada dheeraad ah.
Qaybaha qeexitaanka tuubada caagga ah
| OD/mm | Dhumucda gidaarka tuubada/mm | Cadaadiska shaqada/MPa |
| 450 | 10 ~ 50 | 0 ~ 25.0 |
| 480 | 10 ~ 70 | 0 ~ 32.0 |
| 510 | 10 ~ 45 | 0 ~ 20.0 |
| 530 | 10 ~ 50 | 0 ~ 22.0 |
| 550 | 10 ~ 50 | 0 ~ 20.0 |
| 560 | 10 ~ 50 | 0 ~ 21.0 |
| 610 | 10 ~ 55 | 0 ~ 20.0 |
| 630 | 10 ~ 50 | 0 ~ 18.0 |
| 720 | 10 ~ 60 | 0 ~ 19.0 |
Tilmaamaha jireed ee tuubada caagga ah
| Shayga | Heerka |
| Dhumucda dahaarka (MPa)≥ | 16.5 |
| Dahaarka iyo qalfoofka 180° diirka diirran (KN/m) ≥ | 8 |
| Kordhinta dahaarka (%) ≥ | 550 |
| Dahaarka dahaarka ayaa fidsan (300%, MPa) ≥ | 4 |
| Lakabka dahaarka ah ee luminta abrasion (cm³/1.61km) ≤ | 0.1 |
| Dahaarka adag (Nooca Sauer A) | 60±5 |
| Heerka isbeddelka xoojinta da'da kulaylka ee dahaarka (70 ℃ x 72 h,%) ≤ | 10 |
Astaamaha
1. Dhisme heersare ah
2. Xirashada wanaagsan oo iska caabin ah iyo nolol adeeg oo dheer
3. Xoog sare iyo iska caabin saameyn sare leh
4. Iska caabin daxalka wanaagsan
5. Kala duwanaanta heerkulka ballaaran
6. Xiriir degdeg ah iyo rakibid fudud
