Q235 kila vs 45 Ke kila vs 40Cr Steel

Ma ka hana ʻenekinia, pili pono ke koho kila i ka hana, hana ailihua, kūlia, a me ke kumukūʻai o nā ʻāpana.

ʻEkolu mau kila maʻamau i kuhikuhi ʻia ma nā kūlana Kina a me ka honua - Q235, 45 Kukui Kekuhi, a 40Cr - e uhi i kahi ākea o nā koi hoʻolālā, mai ke kākoʻo kumu kumu a hiki i nā ʻāpana mechanical ikaika loa.

ʻOiai ua hoʻokumu ʻia kēlā me kēia me ka hao-carbon metallurgy, kā lākou mau papahana hoʻohuihui, ʻano microstructural, ʻO ka hana mechanication, a ʻokoʻa loa nā noi kūpono.

Hāʻawi kēia ʻatikala i kahi manaʻo nui, moo kakahtia, a me ka hoʻohālikelike hohonu e alakaʻi i ke koho ʻana i nā mea a me ka hoʻoholo ʻenehana.

1. ʻIkepili Metallurgical a me ka hoʻokaʻawale ʻana

Q235 kila

ʻO Q235 kahi haʻahaʻa-carbon structural steel hoʻohana nui ʻia i ka ʻenekinia maʻamau a me nā noi kūkulu.

ʻO ia ka Pākē maʻamau ʻaihue kīwī Kumu, like me Astm A36 a He S235JR. Hāʻawi ʻo Q235 i kahi ke kaulike o ka ikaika, kumaikalua, a me ka wellingbility, kupono no na uwapo, Nā hale, nā hale moku, Poolali, a me nā papa mīkini.

Nā hiʻohiʻona

• Kinohi: Kalapona ≤ 0.20–0.25%, Mn 0.30–0.70%, ʻo S a me P.
• Nā Pīkuhi Propertinies: Ka ikaika ≈ 235 Mpa, ikaika tensile ≈ 375–500 MPa.
• Weldable a hiki ke hana: Hiki keʻoki maʻalahi, welded, a me ke anu.
• Kumukūʻai-maikaʻi: ʻO ke koho waiwai no nā noi hoʻolālā maʻamau.
• Noi: Kaola kūkulu, nā hana hana, shopbuilding, nā ipu koʻikoʻi.

45 Kukui Kekuhi (ʻike ʻia ʻo C45 a i ʻole 1.1191)

45 he kila he kila kalapona waena hoʻohana nui ʻia ma Kina a ma ka honua no nā ʻāpana mechanical e koi ana i ka ikaika a me ka paʻakikī ma mua o nā kila carbon haʻahaʻa.

Ua pili like me AISI 1045. He kūpono ia no nā lāʻau, Kauluhi, a me na mea paa hoʻouka ʻia me ka mechanically a hiki ke mālama ʻia i ka wela.

Nā hiʻohiʻona

• Kinohi: Kalapona ≈ 0.42–0.50%, Mn 0.50–0.80%, S/P <0.05%.
• Nā Pīkuhi Propertinies (Anned): Ka ikaika tensile ≈ 570–700 MPa, ikaika hua ≈ 330–500 MPa.
• Hiki ke mālama i ka wela: Hiki ke kinai ʻia a hoʻoluliluli ʻia no ka loaʻa ʻana o ka paʻakikī kiʻekiʻe a me ke kūpaʻa ʻana.
• ʻO ka machinability maikaʻi a me ka paʻakikī haʻahaʻa: Kaulike i ka ikaika a me ka hana.
• Noi: Nā papahele, Kauluhi, nā bolts, ankles, ka hoʻopiliʻana i nā rods, a me nā ʻāpana mechanical ma lalo o nā haʻahaʻa haʻahaʻa.

40Cr Steel (Uaʻikeʻia e like me 1.7035)

40ʻO Cr kahi kalapona waena, Chromium-kila kila hoʻohana nui ʻia i nā noi e pono ai ʻoi nui ka ikaika, hālulu, a kau pale ma mua o nā kila kalapona maʻamau.

Hoʻomaikaʻi ʻo Chromium i ka paʻakikī, Ke kū'ē neiʻo Corrosionion, a me ka ikaika kaumaha. Ua like like me AISI 5140.

Nā hiʻohiʻona

• Kinohi: Kalapona ≈ 0.37–0.44%, Chromium ≈ 0.80–1.10%, Mn 0.50–0.80%, S/P <0.035%.
• Nā Pīkuhi Propertinies (kūlohelohe): Ka ikaika tensile ≈ 745–930 MPa, ikaika hua ≈ 435–600 MPa.
• Paʻakiki maikaʻi loa: Hiki ke kinai ʻia a hoʻopaʻa ʻia e hoʻokō i ka paʻakikī kiʻekiʻe (a i hrc 50) no nā ʻāpana pale lole.
• ʻO ke kūpaʻa luhi maikaʻi a me ka paʻakikī: He kūpono no nā ʻāpana mechanical koʻikoʻi.
• Noi: Nā papahele, Kauluhi, lihao, Mea kaumaha-dram, Kuha wai, a me nā ʻāpana mechanical ikaika ʻē aʻe.

2. ʻO ke hoʻohālikelike o keʻano hoʻohālikelike: Q235 kila vs 45 Ke kila vs 40Cr Steel

Hoʻoholo pololei ke ʻano kemika o ke kila i kona ʻano hoʻololi a me nā waiwai mechanical.

Hōʻike ka papa ma lalo nei i nā pae haku mele maʻamau (no nā kūlana aupuni Kina) a me nā mīkini hana o nā mea kī no nā kila ʻekolu:

Nā ʻokoʻa nui:

Loaʻa iā Q235 ke kalapona haʻahaʻa a ʻaʻohe mea hoʻohui i manaʻo ʻia, e kālele ana i ka hiki ke hana; 45 ʻoi aku ka nui o ke kalapona a ʻoi aku ka ikaika o ka mana haumia, hiki i ka mālama wela;

40Hoʻohui ʻo Cr i ka chromium e hoʻonui i ka paʻakikī a me nā waiwai mechanical, hoʻopaʻa i ka ʻokoʻa ma waena o ke kila kalapona a me ke kila kila kiʻekiʻe.

3. Nā hiʻohiʻona microstrucher: Mai As-Delivered to Weat-Treated States

ʻO ka microstructure ka loulou ma waena o ka haku mele a me nā waiwai mechanical.

Hōʻike nā kila ʻekolu i nā microstructure ʻokoʻa ma nā mokuʻāina like ʻole, pili pono i kā lākou hana:

Mokuʻāina ʻo As-Delivered (ʻO ka ʻōwili wela)

• Q235 kila: Aia me ferrite (α-fe) + Puʻuʻupuʻu (ka hui lamellar o ka ferrite a me ka cementite). ʻO Ferrite ka māhele nui (70-80%), e hōʻoia i ka ductility maikaʻi a me ka weldability.
  Maʻiʻo pele (20-30%) hāʻawi i ka ikaika haʻahaʻa. ʻO ke ʻano o ka hale ka mea ʻala ma muli o ka haʻahaʻa haʻahaʻa haʻahaʻa a me ka maʻalahi o ka ʻōwili wela.
• 45 Kukui Kekuhi: Ferrite + Puʻuʻupuʻu, me ka maʻiʻo pearlite kiʻekiʻe (40-50%) ma mua o Q235 ma muli o ke kiʻekiʻe o ke kalapona.
  ʻOi aku ka maikaʻi a ʻoi aku ka lōkahi o ka hale (kila kila kiʻekiʻe), me ka liʻiliʻi o nā hoʻokomo, ke alakaʻi nei i ka ʻoi aku ka maikaʻi o ka ikaika a me ke kaulike paʻakikī.
• 40Cr Steel: Ferrite + Puʻuʻupuʻu + ʻimi i nā carbide waiwai nui i ka chromium. Hoʻomaʻemaʻe ʻo Chromium i ka nui o ka palaoa, ʻoi aku ka lahilahi o ka pearlite lamellae ma mua o 45 Kukui Kekuhi.
  ʻO ka loaʻa ʻana o nā carbide chromium (Cr₃C) hoʻokumu i ke kumu no ka hoʻoikaika ʻana i ka mālama wela.

Mokuʻāina i mālama ʻia i ka wela (Queech + Huhū, Q&T)

• Q235 kila: ʻAʻole hiki ke paʻakikī; Queech (wai waiʻunu wai) hoʻokumu wale i ka martensite ma ka papa honua, me ke kumu i koe ferrite-pearlite.
  ʻAʻole hoʻohana ʻia ka mālama wela, no ka mea, ʻaʻole hiki iā ia ke hoʻomaikaʻi nui i ka hana holoʻokoʻa a hiki ke kumu i ka deformation/cracking.
• 45 Kukui Kekuhi: Ma hope o ka haʻaleleʻana (840–860 ℃ wai/ʻaila hoʻoluʻu), lilo ka hale i lath martensite (paʻakikī akā palupalu).
  ʻO ka hoʻoulu ʻana ma 200-300 ℃ (haʻahaʻa haʻahaʻa) hoʻopuka i ka martensite maʻemaʻe, hoʻomaikaʻi i ka paʻakikī me ka mālama ʻana i ka paʻakikī kiʻekiʻe.
  ʻO ka hoʻoulu ʻana ma 500-600 ℃ (ʻoluʻolu hoʻohenehene) ʻano sorbite, ka loaʻa ʻana o ke kaulike o ka ikaika (σᵤ≥600 MPa) a me ka defility (δ≥15%).
• 40Cr Steel: Paʻakiki maikaʻi loa; ʻaila hoʻoluʻu (ma kahi o ka hooluolu wai) hiki ke hoʻokō i ka hoʻololi martensite piha no nā mea hana me ke anawaena ≤50 mm.
  Ma hope o ka hoʻoulu ʻana (520–560 ℃), lilo ka hale i ka sorbite (sorbite maikaʻi + nā kāwele i laweʻia), me ka ikaika kiʻekiʻe a me ka paʻakikī 45 Kukui Kekuhi. Hoʻopaʻa ʻo Chromium i ke ʻano martensite, e hoemi ana i ka palupalu.

4. Hoʻohālikelike Mea Mechanical — Q235 Steel vs 45 Ke kila vs 40Cr Steel

5. Nā ʻano hoʻomaʻamaʻa wela: Paʻa a me ka hiki ke hoʻololi i ke kaʻina hana

ʻO ka pane ʻana i ka mālama wela (Kālā paʻakikī, paʻa paʻa) hoʻoholo i ka laulā o ka hoʻohana ʻana i ke kila. ʻOkoʻa nā kila ʻekolu ma kēia ʻano:

Ka paakiki

• Q235 kila: ʻilihune loa ka paʻakikī. He kiʻekiʻe ka nui o ka hoʻoilo koʻikoʻi; nā mea hana lahilahi wale nō (≤5 mm) Hiki ke hana i kahi martensite liʻiliʻi ma hope o ka hoʻoluʻu wai, oiai na mea hana manoanoa e noho ferrite-pearlite.
  ʻAʻole hiki ke mālama i ka wela, no laila ua hoʻohana ʻia ia ma ke ʻano i hāʻawi ʻia.
• 45 Kukui Kekuhi: Paʻa paʻa haʻahaʻa. Hiki i nā mea hana me ke anawaena ≤20 mm ke hoʻokō i ka martensite piha ma o ka hoʻoluʻu wai; no nā mea hana mānoanoa (20-40 mm), ʻO ka hoʻoluʻu ʻaila e alakaʻi i ka paʻakikī ʻole (he sorbite ke kumu).
  He kūpono ia no ka nui waena, ʻāpana haʻahaʻa haʻahaʻa e pono ai ka mālama wela.
• 40Cr Steel: Paʻakiki maikaʻi loa. Hoʻemi ʻo Chromium i ka helu hoʻoluʻu koʻikoʻi, hiki ke hoʻololi i ka martensite piha i nā mea hana me ke anawaena ≤50 mm e ka hoʻoluʻu ʻaila (ka pale ʻana i ka hoʻoheheʻe ʻana i ka wai hoʻoluʻu).
  No nā mea hana a hiki i 80 mm, wai-ʻaila quenching hiki ke hoʻokō like hardening, kūpono ia no ka nui, ʻāpana kaumaha.

Nā Kaʻina Hana Hoʻomaʻamaʻa Maʻamau a me nā hopena

• Annalile: Q235 annealing (600–650 ℃) hoʻokuʻu i ke kaumaha kaʻawili; 45/40Hoʻomaʻemaʻe ʻo Cr annealing i nā kīʻaha a hōʻemi i ka paʻakikī no ka mīkini. 40Hoʻoheheʻe ka Cr annealing i nā carbide chromium, e hoomakaukau ana no ke kinai ana.
• Hana maʻamau: Q235 maʻamau (880–920 ℃) hoʻomaikaʻi i ka like ʻana o ka hale; 45/40Hoʻonui ka Cr normalizing i ka ikaika a me ka paʻakikī, hoʻohana mua ʻia no nā ʻāpana paʻakikī.
• Queech + Huhū: ʻO ke kaʻina hana kumu no 45/40Cr. 45 hoʻohana ke kila i ka hoʻoinu wai + ʻoluʻolu hoʻohenehene; 40Hoʻohana ʻo Cr i ka ʻaila kinai + ʻoluʻolu hoʻohenehene, ka loaʻa ʻana o ka hana piha ʻoi aku ka maikaʻi a me ka deformation haʻahaʻa.
• Eha hanona: 45/40Hiki iā Cr ke hana i ka paʻakikī induction a i ʻole carburizing (45 Kukui Kekuhi) e hoʻomaikaʻi i ka paʻakikī o ka ʻili (HRC 50–60) no nā ʻāpana pale lole.
  40Hoʻonui ka maʻiʻo chromium o Cr i ka hopena paʻakikī o ka ʻili a me ke kūpaʻa ʻana.

6. Hana Hana: Kauhi, Kākau, Welding, a me ka machining

Hoʻopili pololei ka hana ʻana i ka hana hana a me ke kumukūʻai, a he kumu nui ia no ke koho ʻana i nā mea ma ka hana nui:

Hana Hoolei

• Q235 kila: Poino castability. ʻO ka haʻahaʻa kalapona a me ka mea hao e alakaʻi ai i ka wai hoʻoheheʻe maikaʻi ʻole a me ka nui o ka emi ʻana, hiki ke emi i nā lua a me ka porosity. Hoʻohana kakaʻikahi no ka hoʻolei ʻana; ka nui no ka olokaa ana a me ka hana ana.
• 45 Kukui Kekuhi: Ka hoʻoheheʻe haʻahaʻa. ʻOi aku ka nui o ka carbon content e hoʻomaikaʻi i ka wai i hoʻohālikelike ʻia me Q235, akā, maʻa mau i ka pohā wela. Hoʻohana ʻia no nā ʻāpana liʻiliʻi liʻiliʻi me ka haʻahaʻa haʻahaʻa.
• 40Cr Steel: ʻOi aku ka maikaʻi o ka castability ma mua o 45 Kukui Kekuhi. Hoʻomaʻemaʻe ʻo Chromium i ke ʻano hoʻolei, e hoemi ana i ka hoemi a me ka poha wela.
  He kūpono no nā ʻāpana hoʻolei pololei e koi ana i ka mālama wela, akā, ʻoi aku ka nui o ke kumukūʻai hoʻolei ma mua o ka ʻōwili ʻana.

Hana Hana

• Q235 kila: Hana maikaʻi forging. Ke kāʻei ʻana i ke ʻano wela (1150–850 ℃) he ākea, me ka plasticity maikaʻi a me ka haʻahaʻa deformation kū'ē. He kūpono no ka hana ʻana i nā ʻano maʻalahi (E.g., nā bolts, nā brackets).
• 45 Kukui Kekuhi: Hana maikaʻi forging. Wehe wela (1100–800 ℃); pono i ka hoʻomehana like ʻole e pale aku i ka haki ʻana. Ua hoʻomaʻemaʻe ʻia nā ʻāpana kala, hoʻomaikaʻi i ka hopena lapaʻau wela.
• 40Cr Steel: ʻO ka hana forging haʻahaʻa. Hoʻonui ʻo Chromium i ka pale deformation, e koi ana i ka ikaika forging kiʻekiʻe a me ka hoʻomalu ʻana i ka wela (1100–820 ℃).
  Pono ka annealing post-forging e hoʻopau i ke kaumaha o loko a hoʻomākaukau no ka mālama wela.

Hana Hoowela

• Q235 kila: Hana maikaʻi kuʻihao. ʻAʻole ka haʻahaʻa kalapona haʻahaʻa i ka hoʻokumu ʻana o martensite ma ka ʻāpana wela (Haz), me ka hoʻomaʻamaʻa ʻole ʻana i ka wela ma hope o ka weld (Pwht) pono no na mea hana lahilahi. Kūpono me nā ʻano hana kuʻilima a pau (Smaw, Kāmaʻa kikomua, Gtaw).
• 45 Kukui Kekuhi: Hana maikaʻi ʻole ka hana wili. Ke alakaʻi nei ka ʻike kalapona kiʻekiʻe i ka martensite paʻakikī i ka HAZ, hiki i ka pohā anu.
  Manaihi (150–200 ℃) a me PWHT (ka hoʻoheheʻe ʻana ma 600-650 ℃) he mea pono. Hoʻohana wale ʻia ka welding no ka hoʻoponopono, ʻaʻole no nā welds lawe ukana.
• 40Cr Steel: ʻOi aku ka maikaʻi o ka hana kuʻi ʻana ma mua o 45 Kukui Kekuhi. Hoʻonui ʻo Chromium i ka paʻakikī HAZ, e hoʻomāhuahua ana i ka maʻi anu a me ka huhū huhū.
  Hoʻomaʻamaʻa mua (200–300 ℃), haʻahaʻa haʻahaʻa hoʻokomo wiliwili, a me PWHT pono. ʻAʻole ʻae ʻia ka welding; hui ʻana me ka mechanical (hoʻopaʻa ʻana, riving) makemakeʻia.

Machimen Hana

• Q235 kila: Hana maikaʻi i ka mīkini. ʻO ka paʻakikī haʻahaʻa a me ka plasticity maikaʻi e maʻalahi ke ʻoki, me ka lole hana haʻahaʻa.
  He kūpono no ka mīkini kiʻekiʻe a me nā laina hana automated (E.g., mīkini paʻa, Nā papa).
• 45 Kukui Kekuhi: ʻO ka hana mīkini maikaʻi ma ke kūlana i hāʻawi ʻia (HBW 190–230). Ma hope o ka mālama wela (paakiki ＞ HRC 30), piʻi ka paʻakikī o ka mīkini, e koi ana i na mea paahana paakiki. He kila maʻamau "machinable heat-treated steel".
• 40Cr Steel: ʻO ka hana machining haʻahaʻa ma ke kūlana i hāʻawi ʻia. Hoʻonui ʻo Chromium i ka ʻoki ʻana, no laila, ʻoi aku ka kiʻekiʻe o ka ʻaʻahu mea hana 45 Kukui Kekuhi.
  Ma hope o Q&T (HBW 280–320), pono ka mīkini ʻokiʻoki kiʻekiʻe a me ka mana o ka hānai, me ke kumukūʻai machining 15-20% kiʻekiʻe ma mua o 45 Kukui Kekuhi.

7. Ke kū'ē neiʻo Corrosionion

ʻO nā kila ʻekolu he mau kila kalapona/alloy structural steels me ka manaʻo ʻole i ka corrosion-resistant alloying elements (He haʻahaʻa loa ka ʻike Cr ma 40Cr no ka hoʻokumu ʻana i nā kiʻiʻoniʻoni passive), no laila, ʻinoʻino ko lākou pale ʻana i ka corrosion, me nā ʻokoʻa iki:

• Q235 kila: ʻO ke kū'ē kū'ē. Maʻiʻo haumia kiʻekiʻe (S, P) a me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa e hoʻokē ʻai i ka lewa a me ka wai maʻemaʻe, me ka helu corrosion o 0.1-0.3 mm / makahiki i loko o nā lewa ʻoihana. Pono e pale ʻia (Kāleka, garvalirigigling) no ka lawelawe waho.
• 45 Kukui Kekuhi: ʻOi aku ka maikaʻi o ka pale ʻana i ka corrosion ma mua o Q235. ʻO ka maʻiʻo haumia haʻahaʻa a me ka hoʻolālā ʻoi aku ka maikaʻi e hōʻemi i nā wahi hoʻomaka corrosion.
  ʻO 0.08-0.25 mm / makahiki ka nui o ka corrosion ma nā lewa ʻoihana, ke koi nei i ka palekana no ka lawelawe lōʻihi.
• 40Cr Steel: ʻO ke kūpaʻa corrosion maikaʻi loa ma waena o nā ʻekolu. Hoʻokumu ʻo Chromium i kahi kiʻiʻoniʻoni oxide lahilahi ma ka ʻili, kaohi ʻana i ka ʻino.
  ʻO 0.05-0.20 mm / makahiki ka nui o ka corrosion ma nā lewa ʻoihana, a ʻoi aku ka maikaʻi o ke kūʻē ʻana i nā ʻakika / kumu haʻahaʻa ma mua o Q235 a 45 Kukui Kekuhi.
  Akā naʻe,, e pilikia mau ana ia i ka luaʻi ʻana i loko o ka media kiʻekiʻe-chloride, e koi ana i ka hana anti-corrosion (chromizing, Kāleka).

8. Nā Manaʻo Hoʻohana Q235 Steel vs 45 Ke kila vs 40Cr Steel

ʻO ka hoʻohanaʻana i nā kilaʻekolu e pili pono ana i kā lākou hana a me ke kumukūʻai, e uhi ana i nā ʻano ʻoihana like ʻole:

Q235 kila

Kumukuai haahaa, ke kila hoʻohua maʻamau. Hoʻokomoʻia nā noi:

• Ke kūkulu hale a me ke kūkulu ʻana: Nā pā kila, beams, nā kolamu, papa kila, a me nā kaola hoʻoikaika no nā hale maʻamau, Nā alahaka, a me na hale hana.
• Hana mīkini: Nā ʻāpana haʻahaʻa ʻole (nā brackets, Nā Hale Kiʻi, uhiʻehā), nā bolts, Nā Kahu, a me nā mea holoi lole no nā lako haʻahaʻa haʻahaʻa.
• Paipu a me ka ipu: ʻO nā paipu wai haʻahaʻa haʻahaʻa, Nā pahu mālama, a me nā pale no nā mea hoʻoheheʻe ʻole.

45 Kukui Kekuhi

Ikaika waena, kila kalapona hiki ke wela. Hoʻokomoʻia nā noi:

• ʻāpana mīkini: Nā papahele kāmaʻa, ka hoʻopiliʻana i nā rods, lihao, nā bolts, a me nā nati no nā lako haʻahaʻa haʻahaʻa (E.g., nā moto liʻiliʻi, Pumps, a me nā mīkini mahiʻai).
• Nā mea hana: Nā Wili, Nā Punches, a make no ka wikiwiki haʻahaʻa, mea paahana haahaa (ma hope o ka paʻakikī o ka ʻili).
• Ka Hoʻolālā Wīwī: ʻāpana koʻikoʻi ʻole (E.g., Nā Mō'ī Brake, ʻO nā alakaʻi alakaʻi) no nā kaʻa haʻahaʻa.

40Cr Steel

Ikaika-ikaika, kila kila kila. Hoʻokomoʻia nā noi:

• ʻāpana hoʻoili mīkini: ʻO nā kumu hoʻouka kiʻekiʻe, Nā Kūlana, Kauluhi, a me nā bearings no nā mīkini kaumaha (E.g., mīkini ʻenekinia, Hana Pūnaewele).
• Aitompetitive Aʻo Aerospace: ʻāpana koʻikoʻi (E.g., nā ʻauamo ʻenekini, pākuʻi nā mea kūʻai, nā mīkini hoʻoili) no nā kaʻa kiʻekiʻe a me nā mokulele māmā.
• ʻoihana Petrokimia: ʻO nā flanges pipeline kiʻekiʻe, Nā Vilves, a me nā lāʻau pāpaʻi no ka ʻawaʻawa waena, nā kaiapuni kiʻekiʻe.

9. Hoʻohālikelike Kūʻai a me ka Hoʻohālikelike Kūʻai

ʻO ke kumukūʻai ke kumu nui i ka hana nui. ʻO ke kumukūʻai pili (e lawe ana i ka Q235 ma ke ʻano he kumu) a eia ke kumu kuai o na kila ekolu:

10. Hopena

ʻO ka hoʻohālikelike hoʻohālikelike o Q235 kila, 45 Kukui Kekuhi, a me 40Cr kila hōʻike manaʻo pehea NA MANAOLO DOLIAMERA, AliLila, a me nā wela wela hoʻololi i ka hana mechanical, hana ailihua, a me nā kūpono kūpono.

• Q235 kila he haʻahaʻa-carbon structural steel me ka ductility maikaʻi loa, wawahua, a me ka formability.
  ʻO ka maikaʻi o ke kumukūʻai he mea kūpono ia no nā mea hana maʻamau a me nā mea hana, akā, he palena iki kona ikaika a pono e pale i ka corrosion.
• 45 Kukui Kekuhi he kalapona waena, kila wela hāʻawi i ka ikaika a me ka paʻakikī ma mua o Q235.
  I ka wa ua pāʻia, loaʻa iā ia ka hoʻomaikaʻi nui ʻana i ka ikaika tensile a me ke kūpaʻa ʻaʻahu, ke kūpono kūpono no nā ʻāpana mechanical e like me nā kumu, Kauluhi, a me na axles.
• 40Cr kila he kila chromium-alloy kila waena Hoʻolālāʻia no kiʻekiʻe-ikaika a me ka luhi-kūpono noi.
  Ia paʻakiki hohonu a me ke kūpale ʻaʻahu ʻae iā ia e hana ma lalo o nā haʻawe cyclic kaumaha, e like me kaʻike lihao, ka hoʻopiliʻana i nā rods, a me nā ʻāpana mīkini kiʻekiʻe.

laina lalo: Pono ke koho waiwai ikaika, paʻakikī, markinpalibility, wawahua, a me ke kumukuai kū'ē i nā koi lawelawe.
Ua kūpono ʻo Q235 i nā noi hoʻolālā a me nā haʻahaʻa haʻahaʻa, 45 uhi kila i nā ʻāpana mechanical haʻahaʻa haʻahaʻa, a ʻoi aku ke kila 40Cr i ka ikaika kiʻekiʻe, luhi nui, a me nā mea ʻaʻahu koʻikoʻi.

 

FaqS

He aha ka ʻokoʻa nui ma waena o Q235, 45, a me 40Cr kila?

• ʻO Q235 he kila haʻahaʻa kalapona; 45 ʻO ke kila ke kalapona waena a me ka wela; 40ʻO Cr he kila chromium-alloy medium-carbon me ka ikaika kiʻekiʻe a me ka paʻakikī.

Hiki iā Q235 ke kila ke hoʻomaʻamaʻa wela e hoʻomaikaʻi i ka ikaika?

• ʻAʻole, ʻO ka haʻahaʻa kalapona haʻahaʻa o Q235 ka palena o ka hoʻopaʻa ʻana i ka wela. ʻO ka hoʻomaikaʻi ʻana i ka ikaika e hilinaʻi i ka hana anu a i ʻole ka hoʻolālā hoʻolālā.

ʻO ke kila hea ka mea maikaʻi loa no nā shafts a me nā mīkini?

• 45 kūpono ke kila no nā kumu haʻahaʻa haʻahaʻa a me nā mea hana; 40Makemake ʻia ʻo Cr no ka ikaika kiʻekiʻe, luhi nui, a me nā mea mīkini pale lole.

ʻO 40Cr kila ke kū i ka corrosion?

• ʻAʻole maoli. Nā uhi pale, Wehe, a i ʻole nā ​​manaʻo hoʻolālā e pono ai no nā kaiapuni corrosive.

Pehea ka hopena o ka mālama wela 45 a me 40Cr kila?

• ʻO ka Quenching a me ka hoʻoulu ʻana e hoʻomaikaʻi nui i ka ikaika tensile, hālulu, a me kaʻehaʻeha, e hana ana ia lakou i kupono no na mea e koi ana i ka mechanically.