GB/T5310-2017 Chubu chosasunthika cha boiler yothamanga kwambiri
Kugwiritsa ntchito
Amagwiritsidwa ntchito kwambiri pakuthamanga kwambiri komanso kutentha kwambiri kwa boiler (chubu chapamwamba chotenthetsera, chubu chotenthetsera, chubu chowongolera mpweya, chubu chachikulu cha nthunzi yama boiler okwera komanso okwera kwambiri). Pansi pa kutentha kwa mpweya wa flue ndi mpweya wa madzi, chubucho chidzasungunuka ndi kuwononga. Ndikofunikira kuti chitoliro chachitsulo chikhale chokhazikika kwambiri, kukana kwambiri makutidwe ndi okosijeni ndi dzimbiri, komanso kukhazikika kwadongosolo.
Main Grade
Kalasi apamwamba mpweya structural zitsulo: 20g, 20mng, 25mng
Kalasi ya aloyi structural zitsulo: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, etc.
Mulingo wosiyana pali Makalasi osiyanasiyana
GB5310 : 20G = EN10216 P235GH
| Zakuthupi | C | Si | Mn | P | S | Cr | MO | NI | Al | Cu | Ti | V |
| P235GH | ≤0.16 | ≤0.35 | ≤1.20 | ≤0.025 | ≤0.025 | ≤0.3 | ≤0.08 | ≤0.3 | ≤0.02 | ≤0.3 | ≤0.04 | ≤0.02 |
| 20G pa | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.03 | ≤0.03 | - | - | - | - | - | - | - |
| Zakuthupi | Kulimba kwamakokedwe | Zotuluka | Kuwonjezera |
| 20G pa | 410-550 | ≥245 | ≥24 |
| P235GH | 320-440 | 215-235 | 27 |
| 360-500 | 25 |
| Zakuthupi | Yesani | ||||||
| 20G: | Kupalasa | Zopangidwa ndi Hydraulic | Mayeso a Impact | NDT | Eddy | Grazin kukula | Mapangidwe a Microscopic |
| P235GH | Kupalasa | Zopangidwa ndi Hydraulic | Mayeso a Impact | NDT | Mphamvu yamagetsi | Kuwonjezeka kwa Drift | Kutayikira kukanika |
Kulekerera
Makulidwe a Khoma ndi Diameter Yakunja:
Ngati palibe zofunikira zapadera, chitolirocho chidzaperekedwa ngati m'mimba mwake wakunja ndi makulidwe a khoma. Monga tsamba lotsatira
| Kutchulidwa kwamagulu | Njira yopangira | Kukula kwa chitoliro | Kulekerera | |||
| Kalasi wamba | Makalasi apamwamba | |||||
| WH | Chitoliro Chotentha (extrude) | Norminal kunja Diameter (D) | <57 | Mtengo wa 0.40 | ±0,30 | |
| 57 ndi 325 | SW35 | ±0.75%D | ±0.5%D | |||
| S>35 | ±1%D | ±0.75%D | ||||
| > 325 ndi 6. | + 1%D kapena + 5.Tengani yocheperapo一2 | |||||
| > 600 | + 1%D kapena + 7,Tengani yocheperapo pa2 | |||||
| Norminal Wall Makulidwe (S) | <4.0 | ±|・丨） | ± 0.35 | |||
| > 4.0-20 | + 12.5%S | ±10%S | ||||
| >20 | Chithunzi cha DV219 | ±10%S | ±7.5%S | |||
| 心219 | + 12.5%S -10%S | 土10%S | ||||
| WH | Chitoliro chowonjezera chamafuta | Norminal kunja Diameter (D) | zonse | ±1%D | ± 0.75%. |
| Norminal Wall Makulidwe (S) | zonse | + 20%S -10%S | + 15%S -io%s | ||
| WC | Zozizira (zokulungidwa) Ppipe | Norminal kunja Diameter (D) | <25.4 | ±l1j | - |
| >25.4 〜4() | ± 0.20 | ||||
| > 40 〜50 | |:0.25 | - | |||
| > 50 〜60 | ± 0.30 | ||||
| > 60 | ±0.5%D | ||||
| Norminal Wall Makulidwe (S) | <3.0 | ±0.3 | ±0.2 | ||
| >3.0 | S | ±7.5%S |
Utali:
Utali wanthawi zonse wa mipope yachitsulo ndi 4 000 mm ~ 12 000 mm. Pambuyo pokambirana pakati pa wogulitsa ndi wogula, ndikudzaza mgwirizanowu, ukhoza kuperekedwa mapaipi achitsulo ndi kutalika kwa 12 000 mm kapena kufupikitsa kuposa I 000 mm koma osachepera 3 000 mm; kutalika kwapang'onopang'ono Kuchuluka kwa mapaipi achitsulo osakwana 4,000 mm koma osachepera 3,000 mm sikuyenera kupitilira 5% ya kuchuluka kwa mapaipi achitsulo omwe amaperekedwa.
Kulemera kwake:
Pamene chitoliro chachitsulo chimaperekedwa molingana ndi m'mimba mwake mwadzina ndi makulidwe a khoma lodziŵika kapena m'mimba mwake mwadzina ndi makulidwe a khoma, chitoliro chachitsulo chimaperekedwa molingana ndi kulemera kwake. Itha kuperekedwanso molingana ndi kulemera kwamalingaliro.
Pamene chitoliro chachitsulo chimaperekedwa molingana ndi m'mimba mwake mwadzina ndi makulidwe ochepa a khoma, chitoliro chachitsulo chimaperekedwa molingana ndi kulemera kwake; maphwando ogulitsa ndi ofunikira amakambirana. Ndipo zikuwonetsedwa mu mgwirizano. Chitoliro chachitsulo chikhoza kuperekedwanso molingana ndi kulemera kwa chiphunzitso.
Kulekerera kulemera:
Malinga ndi zofunikira za wogula, pambuyo pokambirana pakati pa wogulitsa ndi wogula, ndi mu mgwirizano, kupatuka pakati pa kulemera kwake ndi kulemera kwake kwa chitoliro chachitsulo kudzakwaniritsa zofunikira izi:
a) Chitoliro chachitsulo chimodzi: ± 10%;
b) Gulu lililonse la mapaipi achitsulo okhala ndi kukula kochepa kwa 10 t: ± 7.5%.
Chofunikira Choyesa
Mayeso a Hydraustatic:
Chitoliro chachitsulo chiyenera kuyesedwa hydraulically mmodzimmodzi. Kuthamanga kwakukulu kwa mayeso ndi 20 MPa. Pansi pa kukakamizidwa kwa mayeso, nthawi yokhazikika iyenera kukhala yosachepera 10 s, ndipo chitoliro chachitsulo sichiyenera kutuluka.
Wogwiritsa ntchito akavomera, kuyesa kwa hydraulic kumatha kusinthidwa ndi kuyesa kwa eddy panopa kapena kuyesa kwa maginito kutayikira.
Mayeso Osawononga:
Mipope yomwe imafuna kuyang'anitsitsa kwambiri iyenera kuyang'aniridwa ndi ultrasonically mmodzimmodzi. Pambuyo pa zokambiranazo zimafuna chilolezo cha chipanicho ndipo zafotokozedwa mu mgwirizano, mayesero ena osawononga akhoza kuwonjezeredwa.
Mayeso a Flattening:
Machubu okhala ndi mainchesi akunja opitilira 22 mm adzayesedwa kuphwanyidwa. Palibe delamination yowoneka, mawanga oyera, kapena zonyansa zomwe ziyenera kuchitika panthawi yonse yoyesera.
Kuyesa kwa Flaring:
Malinga ndi zofunika za wogula ndi ananena mu mgwirizano, chitoliro zitsulo ndi awiri akunja ≤76mm ndi khoma makulidwe ≤8mm akhoza kuchita flaring mayeso . Kuyesera kunkachitika kutentha kwa chipinda ndi taper ya 60 °. Pambuyo pakuwotcha, kutentha kwapakati pakunja kuyenera kukwaniritsa zofunikira patebulo lotsatirali, ndipo zoyeserera siziyenera kuwonetsa ming'alu kapena ming'alu.
| Mtundu wa Chitsulo
| Kunja m'mimba mwake kuphulika kwa chitoliro chachitsulo /% | ||
| Diameter Yamkati / Yakunja Diameter | |||
| <0.6 | > 0.6 〜0.8 | > 0.8 | |
| Chitsulo chapamwamba cha carbon structural | 10 | 12 | 17 |
| Structural alloy steel | 8 | 10 | 15 |
| • Kuchuluka kwa mkati kumawerengeredwa kwa chitsanzo. | |||
