JIS G 3455he Japanese Industrial Standard (JIS) no ka lawelawe puʻe kiʻekiʻe ma nā mahana o 350 °C a i ʻole ka haʻahaʻa, no nā ʻāpana mechanical.
STS370 paipu kilahe paipu kila me ka ikaika tensile haʻahaʻa o 370 MPa a me ka ikaika haʻahaʻa haʻahaʻa o 215 MPa, me ka maʻi kalapona ʻaʻole i ʻoi aku ma mua o 0.25% a me kahi maʻi silika ma waena o 0.10% a me 0.35%, a hoʻohana nui ʻia i nā noi e koi ana i ke kiʻekiʻe. ikaika a me ka weldability maikaʻi, e like me ke kūkulu hale, nā alahaka, nā moku kaomi, a me nā mea moku.
He ʻekolu mau māka ko JIS G 3455.STS370, STS410, STA480.
ʻO ke anawaena waho o 10.5-660.4mm (6-650A) (1/8-26B).
E hanaia na paipu mai kapepehi kila.
ʻO ke kila pepehi ʻia he kila i hoʻopau ʻia i ka deoxidized ma mua o ka hoʻolei ʻia ʻana i loko o nā ingots a i ʻole nā ʻano ʻē aʻe.ʻO ke kaʻina hana ka hoʻohui ʻana i kahi mea deoxidizing e like me ke silika, aluminika, a i ʻole manganese i ke kila ma mua o ka paʻa ʻana.ʻO ka huaʻōlelo "pepehi" e hōʻike ana ʻaʻohe hopena o ka oxygen i ke kila i ka wā o ke kaʻina paʻa.
Ma ka hoʻopau ʻana i ka oxygen, ke kila pepehi ʻia e pale i ka hoʻokumu ʻana o nā ʻōpū o ka ea i loko o ke kila hoʻoheheʻe ʻia, no laila e pale aku ai i ka porosity a me nā ea i loko o ka huahana hope.ʻO kēia ka hopena i ke kila homogeneous a me ke kila me ka ʻoi aku ka maikaʻi o nā waiwai mechanical a me ke kūpaʻa hoʻonohonoho.
ʻO ke kila killed he kūpono loa ia no nā noi e koi ana i ke kūlana kiʻekiʻe a me ka lōʻihi, e like me nā moku kaomi, nā hale nui, a me nā pipeline me nā koi kiʻekiʻe.
Ma ka hoʻohana ʻana i ke kila pepehi ʻia e hana i nā paipu, hiki iā ʻoe ke hōʻoia i ka hana ʻoi aku ka maikaʻi a me ka lōʻihi o ka lawelawe ʻana, ʻoi aku hoʻi i nā wahi e pili ana i nā ukana kaumaha a me nā pilikia.
Hana ʻia me ka hoʻohana ʻana i kahi kaʻina hana hana ʻole i hui pū ʻia me ke ʻano hoʻopau.
ʻO ka paipu kila maʻemaʻe ʻole wela: SH;
ʻO ka paipu kila liʻiliʻi i hoʻopau ʻia i ke anu: SC.
No ke kaʻina hana maʻemaʻe, hiki ke hoʻokaʻawale ʻia i nā paipu kila ʻole me ke anawaena o waho ma mua o 30mm me ka hoʻohana ʻana i ka hana wela wela, a me 30mm me ka hoʻohana ʻana i ka hana hoʻopau anu.
Eia ke kahe hana o ka Hot-finished seamless.
Hoʻohana nui ʻia ka annealing haʻahaʻa haʻahaʻa e hoʻomaikaʻi i ka hana o nā mea, hoʻemi i ka paʻakikī, a hoʻomaikaʻi i ka paʻakikī, a kūpono hoʻi i ke kila anuanu.
Hoʻohanaʻia ka normalizing no ka hoʻonuiʻana i ka ikaika a me ka paʻakikī o ka mea, iʻoi aku ka maikaʻi o ke kila e pale i ka pilikia mechanical a me ka luhi, hoʻohana pinepineʻia e hoʻonui i ka hana o ke kila anuanu.
Ma o kēia mau kaʻina hana wela, hoʻomaikaʻi ʻia ke ʻano o loko o ke kila a hoʻomaikaʻi ʻia kona mau waiwai, e kūpono ai no ka hoʻohana ʻana i nā noi ʻoihana.
E kulike ana ka noonoo ana me ka JIS G 0320. E kulike ka noonoo ana me JIS G 0321.
| papa | C (Kapona) | Si (Silikona) | Mn (Manekene) | P (Pōpika) | S (Sulphur) |
| STS370 | 0.25% ka nui | 0.10-0.35% | 0.30-1.10% | 0.35% ka nui | 0.35% ka nui |
Nānā welaʻO ka manaʻo nui i ka hoʻāʻo ʻana i ka haku melemele o nā mea maka.
Ma ka nānā ʻana i ka haku mele ʻana o nā mea maka, hiki ke wānana a hoʻoponopono i nā kaʻina hana a me nā kūlana i koi ʻia i ke kaʻina hana, e like me nā ʻāpana mālama wela a me ka hoʻohui ʻana o nā mea hoʻohui.
Nānā huahanakālailai i ka haku mele 'ana o nā huahana i ho'opau 'ia e hō'oia i ka ho'okō a me ka maika'i o ka huahana hope.
Hōʻoia ka nānā ʻana o ka huahana i nā hoʻololi a pau, nā mea hoʻohui a i ʻole nā mea haumia i loko o ka huahana i ka wā o ke kaʻina hana e mālama ʻia a hoʻokō ka huahana hope i nā kikoʻī loea a me nā koi noi.
ʻO JIS G 3455 nā waiwai o ka loiloi huahana ʻaʻole e hoʻokō wale i nā koi o nā mea i ka papa ma luna, akā e hoʻokō pū ka laulā hoʻomanawanui me nā koi o JIS G 3021 Papa 3.
ʻO nā waiwai elongation no ka ʻāpana hoʻāʻo No. 12 (like me ke axis paipu) a me ka ʻāpana hoʻāʻo No. 5 (kūpono i ke axis paipu) i lawe ʻia mai nā paipu ma lalo o 8 mm ka mānoanoa o ka paia.
| Hōʻailona o ka papa | Hoʻohana ʻia ka ʻāpana hoʻāʻo | ʻO ka elongation min, % | ||||||
| Mānoanoa pā | ||||||||
| ＞1 ≤2 mm | ＞2 ≤3 mm | ＞3 ≤4 mm | ＞4 ≤5 mm | ＞5 ≤6 mm | ＞6 ≤7 mm | ＞7 ＜8 mm | ||
| STS370 | Helu 12 | 21 | 22 | 24 | 26 | 27 | 28 | 30 |
| Helu 5 | 16 | 18 | 19 | 20 | 22 | 24 | 25 | |
| Loaʻa nā waiwai elongation ma kēia papa ma ka unuhi ʻana i 1.5 % mai ka waiwai elongation i hāʻawi ʻia ma ka Papa 4 no kēlā me kēia 1 mm ka emi ʻana o ka mānoanoa pā mai ka 8 mm, a ma ka hoʻopuni ʻana i ka hopena i ka helu helu e like me ka Rula A o JIS Z 8401. | ||||||||
Hiki ke hoʻopau ʻia ka hoʻāʻo palahalaha ke ʻole i kuhikuhi ʻia e ka mea kūʻai.
E kau i ka mea hoʻohālike i loko o ka mīkini a palahalaha a hiki i ka mamao ma waena o nā paepae ʻelua i ka waiwai i ʻōlelo ʻia H. A laila e nānā i ka specimen no nā māwae.
I ka hoʻāʻo ʻana i ka paipu welded kūpaʻa koʻikoʻi, ʻo ka laina ma waena o ka weld a me ke kikowaena o ka paipu e kū pololei i ke kuhikuhi hoʻoemi.
H=(1+e)t/(e+t/D)
H: ka mamao ma waena o nā pā (mm)
t: mānoanoa pā o ka paipu (mm)
D: anawaena o waho o ka paipu (mm)
ʻē:wehewehe mau no kēlā me kēia papa o ka paipu.0.08 no STS370: 0.07 no STS410 a me STS480.
He kūpono no nā paipu me ke anawaena o waho o ≤ 50 mm.
ʻAʻohe māwae ka mea hoʻohālike i ka wā e pio ai ma 90° me ke anawaena o loko he 6 manawa o ke anawaena o waho o ka paipu.
E ana ʻia ka ʻoki piʻo ma ka hoʻomaka ʻana o ka piʻo.
Pono e hoʻāʻo ʻia kēlā me kēia paipu kila i ka hydrostatically a i ʻole ka luku ʻolee hōʻoia i ka maikaʻi a me ka palekana o ka paipu a me nā kūlana o ka hoʻohana.
Hoʻāʻo Hydraulic
Inā ʻaʻole i kuhikuhi ʻia ke kaomi hoʻāʻo, e hoʻoholo ʻia ka liʻiliʻi o ka wai hoʻāʻo wai e like me ka Pipe Schedule.
| Nominal pā mānoanoa | 40 | 60 | 80 | 100 | 120 | 140 | 160 |
| ʻO ke kaomi hoʻāʻo hydraulic liʻiliʻi loa, Mpa | 6.0 | 9.0 | 12 | 15 | 18 | 20 | 20 |
Ke ʻole ka mānoanoa o ka pā o ke anawaena o waho o ka paipu kila i ka waiwai maʻamau i ka papa o ke kaumaha o ka paipu kila, pono e hoʻohana i ke ʻano e helu ai i ka waiwai kaomi.
P=2st/D
P: kaomi ho'āʻo (MPa)
t: mānoanoa pā o ka paipu (mm)
D: waho anawaena o ka paipu (mm)
s: 60 % o ka waiwai haʻahaʻa o ka helu hua a i ʻole koʻikoʻi hōʻoia i hāʻawi ʻia.
Ke hoʻohana ʻia ke kaomi hoʻāʻo hydrostatic haʻahaʻa loa o ka helu hoʻolālā i koho ʻia ma mua o ke kaomi hoʻāʻo P i loaʻa ma ke ʻano, e hoʻohana ʻia ke kaomi P ma ke ʻano he haʻahaʻa haʻahaʻa haʻahaʻa hydrostatic ma mua o ke koho ʻana i ke kaomi hoʻāʻo hydrostatic haʻahaʻa ma ka papa ma luna.
Ho'āʻo hoʻopōʻino ʻole
Pono e hana ʻia ka hoʻāʻo non-destructive o nā paipu kila eultrasonic a i ʻole eddy hoʻāʻo i kēia manawa.
No ka meakani ultrasonicnā hiʻohiʻona nānā, ka hōʻailona mai kahi hāpana kuhikuhi i loaʻa kahi maʻamau kuhikuhi o ka papa UD e like me ka mea i kuhikuhi ʻia maJIS G 0582e noʻonoʻo ʻia ma ke ʻano he pae hoʻāla a loaʻa kahi hōʻailona kumu e like a ʻoi aku paha ma mua o ka pae hoʻāla.
ʻO ka ʻike ʻike maʻamau no kaeddy currentʻO ka hoʻokolohua ka māhele EU, EV, EW, a i ʻole EX i kuhikuhi ʻia maJIS G 0583, a ʻaʻole e loaʻa nā hōʻailona like a ʻoi aku paha ma mua o nā hōʻailona mai ka hāpana kuhikuhi i loaʻa ka maʻamau kuhikuhi o ka ʻāpana i ʻōlelo ʻia.
No ka mea hou akuNā Papa Kaumaha Paipu a me nā Papa Hana Paipui loko o ka maʻamau, hiki iā ʻoe ke kaomi ma o.
Ua kūpono ka paipu 40 no nā noi haʻahaʻa a me ka haʻahaʻa haʻahaʻa no ka mea hāʻawi ia i ka mānoanoa pā haʻahaʻa e pale aku i ke kaumaha a me ke kumu kūʻai me ka hōʻoia ʻana i ka ikaika kūpono.
Hoʻohana nui ʻia ka Piping Schedule 80 i nā ʻenehana ʻoihana e koi ana i ka mālama ʻana i ke kaomi kiʻekiʻe, e like me nā ʻōnaehana hana kemika a me nā paipu hoʻouna ʻaila a me ke kinoea, ma muli o kona hiki ke kū i nā kaomi kiʻekiʻe a me nā hopena mechanical ikaika ma muli o kona mānoanoa o ka pā, e hāʻawi ana i ka palekana hou aʻe. , palekana, a me ka lōʻihi.
Pono e hoʻopaʻa inoa ʻia kēlā me kēia paipu me ka ʻike ma lalo nei.
a)Hōʻailona o ka papa;
b)Hōʻailona o ke ʻano hana;
c)AnanaLaʻana 50AxSch80 a i ʻole 60.5x5.5;
d)Ka inoa o ka mea hana a i ʻole ka hōʻailona hōʻailona.
Ke liʻiliʻi ke anawaena o waho o kēlā me kēia paipu a paʻakikī ke hōʻailona i kēlā me kēia paipu, a i ʻole ke koi ʻia ka mea kūʻai aku e hōʻailona ʻia kēlā me kēia pūpū o nā paipu, hiki ke hōʻailona ʻia kēlā me kēia pūʻolo e kahi ala kūpono.
He kūpono ʻo STS370 no nā ʻōnaehana hoʻoili wai haʻahaʻa akā ʻano kiʻekiʻe.
Pūnaehana hoʻomehana: Ma ka hoʻomehana kūlanakauhale a i ʻole nā ʻōnaehana hoʻomehana hale nui, hiki ke hoʻohana ʻia ʻo STS370 no ka lawe ʻana i ka wai wela a i ʻole ka mahu no ka mea hiki iā ia ke pale i ke kaomi a me ka hoʻololi ʻana o ka mahana i ka ʻōnaehana.
Mea kanu mana: I ka hanaʻana i ka uila, makemakeʻia ka nui o nā paipu mahu kiʻekiʻe, aʻo STS370 ka mea kūpono no ka hanaʻana i kēia mau paipu no ka mea hiki iā ia ke pale i nā manawa lōʻihi o ke kiʻekiʻe kiʻekiʻe a me nā wahi hana kiʻekiʻe.
Pūnaehana ea paʻa: I ka hana ana a me ka automated production laina, compressed air is a important source of power, and STS370 steel pipe is used to build pipes for these system to ensure safe and efficient air delivery.
Ka hoʻohana ʻana i ka hale a me nā mīkini maʻamau: Ma muli o kāna mau waiwai mechanical maikaʻi, hiki ke hoʻohana ʻia ʻo STS370 i ka hana ʻana i nā ʻano hana like ʻole a me nā ʻāpana mechanical, ʻoi aku hoʻi i nā noi kahi e koi ʻia ai kahi ikaika compressive.
ʻO JIS G 3455 STS370 kahi mea hao kalapona i hoʻohana ʻia i ka lawelawe ʻoihana kiʻekiʻe.Hiki ke noʻonoʻo ʻia nā mea ma lalo nei he like a kokoke like paha:
1. ASTM A53 Papa B: He kūpono no ka hana maʻamau a me ka mīkini hana a no ka lawe wai.
2. API 5L Papa B: No ka aila kiʻekiʻe a me ke kinoea lawe laina paipu.
3. DIN 1629 St37.0: No ka 'enekinia mechanical a me ka hana moku.
4. EN 10216-1 P235TR1: Paipu kila maʻemaʻe no ka wela kiʻekiʻe a me ke kaiapuni kiʻekiʻe.
5. ASTM A106 Papa B: Paipu kila kalapona ʻole no ka lawelawe wela wela.
6.ASTM A179: ʻO nā paipu kila māmā i huki ʻia i ke anu anuanu no ka lawelawe haʻahaʻa wela.
7. DIN 17175 St35.8: Nā mea paipu maʻemaʻe no nā paila a me nā ipu kaomi.
8. EN 10216-2 P235GH: ʻO nā paipu maʻemaʻe ʻole a me nā paipu o ke kila kila ʻole a me ke kila kila no nā kaiapuni kiʻekiʻe a me ke kaomi kiʻekiʻe.
Mai kona hoʻokumu ʻana i ka makahiki 2014, ua lilo ʻo Botop Steel i mea hoʻolako alakaʻi i ka paipu kila carbon ma Northern China, i ʻike ʻia no ka lawelawe maikaʻi loa, nā huahana kiʻekiʻe, a me nā hoʻonā piha.Hāʻawi ka hui i nā ʻano paipu kila kalapona a me nā huahana pili, me ka seamless, ERW, LSAW, a me ka paipu kila SSAW, a me ka laina piha o nā paipu paipu a me nā flanges.
ʻO kāna mau huahana kūikawā pū kekahi me nā mea kila kiʻekiʻe a me nā austenitic stainless steel, i hana ʻia e hoʻokō i nā koi o nā papahana pipeline like ʻole.
