Chithunzi cha 370ndi kalasi ya Japan muyezo JIS G 3456 kwa mapaipi zitsulo kaboni, amene ntchito mapaipi kuthamanga m'madera ndi kutentha pamwamba 350 ° C.Itha kukhala mapaipi opanda msoko kapena owotcherera pogwiritsa ntchito njira yowotcherera yamagetsi (RW).Zomwe zimapangidwira za STPT 370 ndizochepa mphamvu zowonongeka za 370 MPa ndi mphamvu zochepa zokolola za 215 MPa.
Ngati mukuyang'ana wopanga ndi wogulitsa mapaipi achitsulo omwe amakwaniritsa muyezo wa JIS G 3456, ndiye kuti ndife mnzanu amene mukumufuna.Lumikizanani nafe lero ndipo tidzakhala okondwa kukuthandizani!
Oyenera ma diameter akunja 10.5 mm - 660.4 mm (6A - 650A) (1/8B - 26B).
A ndi B ndi njira ziwiri zofotokozera m'mimba mwake mwadzina mu muyezo waku Japan.Makamaka, A amafanana ndi DN, pomwe B amafanana ndi NPS.
JIS G 3456 STPT 370 ikhoza kupangidwa pogwiritsa ntchitoopanda msokokupanga kapena kupangakuwotcherera kukana kwamagetsi(RW) ndondomeko.
Njira yopangira imagwirizananso ndi njira zosiyanasiyana zomaliza kuti athe kuthana ndi malo osiyanasiyana ogwiritsira ntchito.
| Chizindikiro cha kalasi | Chizindikiro cha kupanga | |
| Njira yopanga mapaipi | Njira yomaliza | |
| Chithunzi cha JIS G3456 STPT370 | Zopanda malire: S | Zomaliza: H Zomaliza: C |
| Kukana kwamagetsi welded: E Zida zowotcherera: B | Zomaliza: H Zomaliza: C Momwe kukana kwamagetsi kumawotcherera: G | |
STPT 370 iyenera kutenthedwa ndi kutentha.
1. Chitoliro chachitsulo chosasunthika chotentha: Monga chopangidwira Kutentha kwapansi kapena normalizing kungagwiritsidwe ntchito ngati pakufunikira;
2. Chitoliro chachitsulo chosasunthika chozizira chozizira: Kutentha kochepa kapena kukhazikika;
3. Kutentha kwamagetsi kutha kukana welded chitsulo chitoliro: Monga chopangidwa Kutentha kwapang'onopang'ono annealing kapena normalizing ingagwiritsidwe ntchito ngati pakufunikira;
4. Cold-anamaliza kukana magetsi welded ndi Monga kukana magetsi welded zitsulo chitoliro: Low-kutentha annealing kapena normalizing.
| Chizindikiro cha kalasi | C | Si | Mn | P | S |
| Chithunzi cha JIS G3456 STPT370 | 0.25% kuchuluka | 0.10 - 0.35% | 0.30 - 0.90% | 0.035 % | 0.035 % |
Ngati ndi kotheka, zinthu zowonjezera zitha kuwonjezeredwa.
Kulimba Kwamphamvu, Kutulutsa Pansi kapena Kupanikizika Kwaumboni, ndi Kutalikira
Flattening Katundu
Oyenera mapaipi ndi m'mimba mwake akunja oposa 60.5 mm.
Chitsanzocho chimayikidwa pakati pa nsanja ziwiri ndikuphwanyidwa.Pamene mtunda pakati pa mbale ziwiri ufikaH, palibe ming'alu pamwamba pa chitsanzo cha chitoliro chachitsulo.
H = 1.08t/(0.08+ t/D)
н: mtunda pakati pa ma platens (mm);
t: khoma makulidwe a chitoliro (mm);
D: kunja kwake kwa chitoliro (mm);
Kukhazikika
Oyenera zitsulo mipope ndi m'mimba mwake akunja 60.5 mm kapena zochepa.
Pamene chitsanzocho chimapindika mozungulira mandrel kumtunda wamkati wa 6 nthawi zakunja kwa chitoliro, chitsanzocho chimayang'aniridwa ndipo palibe ming'alu yomwe imapezeka.
| Mwadzina khoma makulidwe | Nambala ya ndondomeko: Sch | |||||||||
| 10 | 20 | 30 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | |
| Kuthamanga kocheperako kwa hydraulic test, Mpa | 2.0 | 3.5 | 5.0 | 6.0 | 9.0 | 12 | 15 | 18 | 20 | 20 |
Pamene m'mimba mwake kunja ndi khoma makulidwe a chitoliro zitsulo si miyeso muyezo, njira zotsatirazi angagwiritsidwe ntchito kudziwa yoyenera mfundo kalasi:
Choyamba, sankhani kalasi yokhazikika yomwe ili pafupi kwambiri ndi saizi yosagwirizana;chachiwiri, dziwani giredi yeniyeni powerengera mtengo wa P.
Munjira zonse ziwiri, mtengo wocheperako uyenera kusankhidwa ngati giredi yomaliza.
P = 2st/D
P: kuthamanga kwa mayeso (MPa);
t: khoma makulidwe a chitoliro (mm);
D: kunja kwake kwa chitoliro (mm);
s: 60% ya mtengo wochepera womwe watchulidwa wa zokolola kapena kutsindika kwa umboni;
Njira zoyezetsa zosawononga zodziwika bwino zimaphatikizapo kuyesa kwa ultrasonic (UT) ndi kuyesa kwa eddy panopa (ET).
Pamene mukuchita kuyendera akupanga, kutchulidwa kuyenera kuperekedwa kwa JIS G 0582, ndipo pamene zotsatira zoyendera ndi zofanana kapena kuposa zomwe zimatchulidwa mu kalasi ya UD, zimaonedwa kuti ndizolephera.
Pochita kafukufuku wamakono wa eddy, ziyenera kutchulidwa ku JIS G 0583. Pamene zotsatira zoyendera zikufanana kapena kupitirira muyeso wa kalasi ya EY, zimaonedwa kuti ndizosayenerera.
Miyezo yokhazikika ndi makulidwe a khoma apakati pa 10.5 mm mpaka 660.4 mm alembedwa mu JIS G 3456, yomwe ndizitsulo chitoliro kulemera tebulo ndi ndondomeko yofananira No.
Ndandanda 10,Ndandanda 20,Ndandanda 30,Ndandanda 40,Ndandanda 60,Ndandanda 80,Pulogalamu 100,Ndandanda 120,Ndime 140,Ndime 160.
Kuyambira pomwe idakhazikitsidwa mu 2014,Botop Steelwakhala katundu kutsogolera mpweya zitsulo chitoliro ku Northern China, kudziwika ndi utumiki kwambiri, mankhwala apamwamba, ndi mayankho mabuku.
Kampaniyi imapereka mapaipi osiyanasiyana a zitsulo za carbon ndi zinthu zomwe zimagwirizana nazo, kuphatikizapo zopanda msoko, ERW, LSAW, ndi chitoliro chachitsulo cha SSAW, komanso mzere wathunthu wazitsulo ndi flanges.Zopangira zake zapadera zimaphatikizanso ma alloys apamwamba kwambiri ndi zitsulo zosapanga dzimbiri za austenitic, zopangidwa kuti zikwaniritse zofunikira zama projekiti osiyanasiyana a mapaipi.
Chonde khalani omasuka kulumikizana nafe ndipo tidzakhala okondwa kuyankha mafunso anu.
