ASTM A192 (ASME SA192Chitoliro chachitsulo () ndi chitoliro chachitsulo cha kaboni chopanda msoko chomwe chimagwiritsidwa ntchito m'malo otentha kwambiri komanso opanikizika kwambiri ndipo chimagwiritsidwa ntchito kwambiri mu ma boiler ndi ma heat exchanger.
Chidutswa chakunja: 1/2″ – 7″ (12.7 mm – 177.8 mm);
Kukhuthala kwa khoma: 0.085″ – 1.000″ (2.2 mm – 25.4 mm);
Makulidwe ena a chitoliro chachitsulo angaperekedwenso ngati pakufunika, bola ngati zofunikira zina zonse za A192 zakwaniritsidwa.
ASTM A192 imapangidwa pogwiritsa ntchito njira yosasokonekera ndipo imamalizidwa ndi kutentha kapena kuzizira ngati pakufunika;
Komanso, kuzindikira chitoliro chachitsulo kuyenera kusonyeza ngati chitoliro chachitsulocho chatha kutentha kapena kuzizira.
Kumaliza kotentha: Amatanthauza njira yomaliza miyeso yomaliza ya chubu chachitsulo chili chotentha. Chubu chachitsulo chikadutsa njira yotenthetsera monga kupondaponda kotentha kapena kukokedwa kotentha, sichimakonzedwanso mozizira kwambiri. Machubu achitsulo omalizidwa kutentha amakhala olimba komanso osavuta kugwira ntchito koma amakhala ndi zolekerera zazikulu.
Kuzizira kwatha: Chitoliro chachitsulo chimakonzedwa mpaka kufika pamlingo wake womaliza pogwiritsa ntchito njira zozizira monga kuzizira kapena kukoka kozizira kutentha kwa chipinda. Mapaipi achitsulo omalizidwa kuzizira amakhala ndi mawonekedwe olondola komanso malo osalala koma amatha kulephera kulimba.
Machubu achitsulo osapindika omalizidwa ndi kutentha safuna kutentha.
Machubu achitsulo osapindika omalizidwa ndi kuzizira amakonzedwa kutentha pa kutentha kwa 1200°F [650°C] kapena kupitirira apo akakonzedwa komaliza kozizira.
| Muyezo | C | Mn | P | S | Si |
| ASTM A192 | 0.06-0.18% | 0.27-0.63% | 0.035% payokha | 0.035% payokha | 0.25% payokha |
ASTM A192 silola kuwonjezera zinthu zina ku mankhwala.
| Kulimba kwamakokedwe | Mphamvu yobereka | Kutalikitsa | Mayeso Ophwanyika | Mayeso Oyaka |
| mphindi | mphindi | mu 2 inchi kapena 50 mm, mphindi | ||
| 47 ksi [325 MPa] | 26 ksi [180 MPa] | 35% | Onani ASTM A450, Gawo 19 | Onani ASTM A450, Gawo 21 |
Pokhapokha ngati tafotokozera mwanjira ina mu ASTM A192, zipangizo zomwe zaperekedwa motsatira izi ziyenera kutsatira zofunikira zaASTM A450/A450M.
Kulimba kwa Rockwell: 77HRBW.
Pa mapaipi achitsulo okhala ndi makulidwe osakwana 0.2" [5.1 mm].
Kuuma kwa Brinell: 137HBW.
Pa khoma la chitoliro chachitsulo cha makulidwe a 0.2" [5.1 mm] kapena kuposerapo.
Kuti mudziwe zofunikira pa ntchito, onani ASTM A450, Chinthu 23.
· Kuchuluka kwa madzi: Chitoliro chilichonse chachitsulo chimayesedwa ndi hydrostatic pressure.
· Nthawi: Sungani mphamvu yochepa kwa masekondi osachepera 5.
· Kuchuluka kwa kuthamanga kwa madzi: Kuwerengedwa pogwiritsa ntchito njira yotsatirayi. Onani gawo.
Ma Inchi - Mapaundi Mayunitsi: P = 32000 t/D
Mayunitsi a SI: P = 220.6t/D
P = kuthamanga kwa mayeso a hydrostatic, psi kapena MPa;
t = makulidwe a khoma otchulidwa, mkati kapena mm;
D = m'mimba mwake wakunja, mkati kapena mm.
· Zotsatira: Ngati palibe kutuluka kwa madzi m'mapaipi, mayesowo amaonedwa kuti apambana.
Njira ina yopezera mayeso a hydrostatic ndi yothekanso ndi mayeso oyenera osawononga.
Komabe, muyezowu sunatchule njira yoyesera yosawononga yomwe ingagwiritsidwe ntchito.
Machubu akayikidwa mu boiler ayenera kuyima akufutukuka komanso akuoneka ngati mikanda popanda kuwonetsa ming'alu kapena zolakwika. Machubu a Superheater akagwiritsidwa ntchito bwino ayenera kuyima ntchito zonse zopangira, kuwotcherera, ndi kupindika zofunika kuti zigwiritsidwe ntchito popanda kukhala ndi zolakwika.
Chitsulo cha Botopndi kampani yopanga mapaipi achitsulo cha kaboni yopangidwa ndi welded komanso yogulitsa mapaipi achitsulo cha carbon ochokera ku China, komanso kampani yogulitsa mapaipi achitsulo chosasunthika, yomwe imakupatsani mitundu yosiyanasiyana ya njira zothetsera mapaipi achitsulo!
Lumikizanani nafekuti mupeze mtengo wochokera kwa wogulitsa mapaipi achitsulo chosasunthika waku China.
