Ugavi wa Kiwanda China Aloi ya Joto ya Juu isiyo na Mfumo/ Bomba
Muhtasari
Kampuni yetu tangu kuanzishwa kwake, kwa kawaida huzingatia ubora wa juu wa bidhaa kama maisha ya kampuni, mara kwa mara hufanya maboresho ya teknolojia ya uzalishaji, kuboresha bidhaa bora na mara kwa mara kuimarisha usimamizi wa ubora wa shirika, kulingana na kiwango cha kitaifa cha ISO 9001:2000 cha Aloi ya Joto ya Juu Imefumwa. Bomba/ Bomba, Ubora mzuri na bei pinzani hufanya bidhaa zetu kufurahia sifa ya juu kote neno. Kuaminika ni kipaumbele, na huduma ni uhai. Tunaahidi sasa tuna uwezo wa kutoa ubora bora na bidhaa za bei nzuri kwa wateja. Ukiwa nasi, usalama wako umehakikishwa.
SCM415 ni daraja la chuma cha Kijapani, ambacho ni sawa na 15CrMo ya darasa la ndani na 15CrMo4 ya ISO-693-17-1999. Chuma ni aloi ya chini ya kaboni yenye nguvu ya juu ya mafuta na upinzani wa oxidation, pamoja na mali nzuri ya kina ya mitambo. Aloi ya muundo wa chuma, inayotumika katika boilers na turbines za mvuke kwa mirija ya joto kali, mirija ya mvuke na uundaji sambamba wa boilers za shinikizo la juu chini ya 530 ℃.
Sehemu ya Kemikali ya SCM415:
Nguvu ya mkazo σb (MPa): ≥440(45)
Nguvu ya mavuno σs (MPa): ≥295(30)
Kurefusha δ5 (%): ≥22
Kipengele cha Kemikali cha 15CrMo:
C: 0.12 ~ 0.18
Mn: 0.40 ~ 0.70
Si: 0.17 ~ 0.37
Cr: 0.80 ~ 1.10
Mo: 0.40 ~ 0.55
Ni: ≤0.30
S: ≤0.035
P: ≤0.035
Mali ya Mitambo ya 15CrMo:
Nguvu ya mvutano MPa: 440 ~ 640
Sehemu ya mavuno MPa: 295
Urefu (%): 22
Tunaweza kupata 15CrMo na SCM415 ni sawa, hakuna mahitaji maalum, hizo mbili zinaweza kuchukua nafasi ya kila mmoja.
Maombi
Hutumika Hasa Kutengeneza Chuma cha Muundo wa Carbon, Aloi ya Miundo ya Chuma na miundo ya mitambo.
Daraja Kuu
Daraja la Chuma cha Muundo wa Kaboni: 10,20,35, 45,Q345,Q460,Q490,Q620,,N.k.
Daraja la Chuma cha Muundo wa Aloi: 42CrMo, 35CrMo, Nk
Kipengele cha Kemikali
Daraja la chuma | Kiwango cha ubora | Muundo wa kemikali | ||||||||||||||
C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
hakuna kubwa kuliko | si chini ya | |||||||||||||||
Q345 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.30 | 0.50 | 0.20 | 0.012 | 0.10 | —- | - | |||
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0.07 | 0.15 | 0.20 | 0.015 | ||||||||||
D | 0.18 | 0.030 | 0.025 | |||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q390 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.20 | 0.20 | 0.3 | 0.50 | 0.20 | 0.015 | 0.10 | - | - |
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0,015 | |||||||||||||
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q42O | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.2 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | —- | —- |
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0.015 | |||||||||||||
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q46O | C | 0.20 | 0.60 | 1.80 | 0.030 | 0.030 | 0.11 | 0.20 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q500 | C | 0j8 | 0.60 | 1.80 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 0.60 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
D | 0.025 | 0.015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Q550 | C | 0.18 | 0.60 | 2.00 | 0.025 | 0,020 | 0.11 | 0.20 | 0.20 | 0.80 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
D | 0.025 | 0,015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Q62O | C | 0.18 | 0.60 | 2.00 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 1.00 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
D | 0.025 | 0.015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
a.Mbali na gredi za Q345A na Q345B, chuma kinapaswa kuwa na angalau moja ya vipengele vya nafaka vilivyosafishwa Al, Nb, V, na Ti. Kulingana na mahitaji, muuzaji anaweza kuongeza moja au zaidi vipengele vya nafaka iliyosafishwa. Thamani ya juu itakuwa kama ilivyoainishwa kwenye jedwali. Inapojumuishwa, Nb + V + Ti sio zaidi ya 0.22%b. Kwa alama za Q345, Q390, Q420 na Q46O, Mo + Cr sio zaidi ya 0.30%c. Wakati Cr na Ni za kila daraja zinatumiwa kama vipengele vya mabaki, maudhui ya Cr na Ni haipaswi kuwa zaidi ya 0.30%; inapohitajika kuongeza, yaliyomo yanapaswa kukidhi mahitaji kwenye jedwali au kuamuliwa na muuzaji na mnunuzi kupitia mashauriano.d. Ikiwa msambazaji anaweza kuhakikisha kuwa maudhui ya nitrojeni yanakidhi mahitaji katika jedwali, uchanganuzi wa maudhui ya nitrojeni hauwezi kufanywa. Ikiwa Al, Nb, V, Ti na vipengele vingine vya alloy na fixation ya nitrojeni huongezwa kwa chuma, maudhui ya nitrojeni sio mdogo. Maudhui ya urekebishaji wa nitrojeni yanapaswa kubainishwa katika cheti cha ubora.e. Unapotumia alumini kamili, jumla ya maudhui ya alumini Alt ≥ 0020%. |
Daraja | CEV sawa na kaboni (sehemu ya wingi) /% | |||||
Unene wa ukuta wa kawaida s≤ 16mm | Unene wa ukuta wa jina S2>16 mm〜30 mm | Unene wa ukuta wa jina S>30mm | ||||
Moto limekwisha au kuhalalisha kawaida | Kuzima +kukasirisha | Moto umevingirwa au wa kawaida | Kuzima +kukasirisha | Moto umevingirwa au wa kawaida | Kuzima +kukasirisha | |
Q345 | <0.45 | - | <0.47 | - | <0.48 | 一 |
Q390 | <0.46 | 一 | W0.48 | - | <0.49 | - |
Q420 | <0.48 | 一 | <0.50 | <0.48 | <0.52 | <0,48 |
Q460 | <0.53 | <0.48 | W0.55 | <0.50 | <0.55 | W0.50 |
Q500 | 一 | <0.48 | 一 | <0.50 | 一 | W0.50 |
Q550 | - | <0.48 | .一 | <0.50 | 一 | <0.50 |
Q62O | - | <0.50 | - | <0.52 | - | W0.52 |
Q690 | - | <0.50 | - | <0.52 | - | W0.52 |
Mali ya Mitambo
Miundo ya mitambo ya chuma cha ubora wa juu cha kaboni na mabomba ya miundo ya aloi ya chini ya nguvu ya juu.
Daraja | Kiwango cha ubora | Nguvu ya Mavuno | Nguvu ya chini ya mavuno | Elongation baada ya kuvunja | Mtihani wa athari | |||
Unene wa ukuta wa majina | joto | Kunyonya nishati | ||||||
chini ya mm 16 | > 16 mm〜 | 〉30 mm | ||||||
30 mm | ||||||||
si chini ya | si chini ya | |||||||
10 | - | >335 | 205 | 195 | 185 | 24 | - | - |
15 | - | >375 | 225 | 215 | 205 | 22 | - | 一 |
20 | —- | > 410 | 245 | 235 | 225 | 20 | - | - |
25 | - | > 450 | 275 | 265 | 255 | 18 | - | - |
35 | - | >510 | 305 | 295 | 285 | 17 | 一 | - |
45 | - | 2590 | 335 | 325 | 315 | 14 | - | - |
20Mn | —• | > 450 | 275 | 265 | 255 | 20 | - | 一 |
25Mn | - | > 490 | 295 | 285 | 275 | 18 | - | - |
Q345 | A | 470-630 | 345 | 325 | 295 | 20 | - | 一 |
B | 4 ~ 20 | 34 | ||||||
C | 21 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
Q39O | A | 490-650 | 390 | 370 | 350 | 18 | ||
B | 20 | 34 | ||||||
C | 19 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
Q42O | A | 520〜680 | 420 | 400 | 380 | 18 | ||
B | 20 | 34 | ||||||
C | 19 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
Q46O | C | 550〜720 | 460 | 440 | 420 | 17 | 0 | 34 |
D | -20 | |||||||
E | -40 | 27 | ||||||
Q500 | C | 610〜770 | 500 | 480 | 440 | 17 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
Q550 | C | 670〜830 | 550 | 530 | 490 | 16 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
Q62O | C | 710〜880 | 620 | 590 | 550 | 15 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
Q690 | C | 770〜94. | 690 | 660 | 620 | 14 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 |
Mali ya mitambo ya mabomba ya chuma ya alloy
NO | Daraja | Utawala uliopendekezwa wa matibabu ya joto | Tabia za mvutano | Bomba la chuma lililofungwa au halijoto ya juu Hali ya uwasilishaji Ugumu wa Brinell HBW | ||||||
Kuzima (kurekebisha) | Kukasirisha | Mavuno NguvuMPa | Nguvu ya Mkazo MPa | Urefu baada ya kuvunja A% | ||||||
joto | Kipozea | Halijoto | Kipozea | |||||||
Kwanza | Pili | si chini ya | hakuna kubwa kuliko | |||||||
1 | 40Mn2 | 840 | Maji, mafuta | 540 | Maji, mafuta | 885 | 735 | 12 | 217 | |
2 | 45Mn2 | 840 | Maji, mafuta | 550 | Maji, mafuta | 885 | 735 | 10 | 217 | |
3 | 27SiMn | 920 | Maji | 450 | Maji, mafuta | 980 | 835 | 12 | 217 | |
4 | 40MnBc | 850 | mafuta | 500 | Maji, mafuta | 980 | 785 | 10 | 207 | |
5 | 45MnBc | 840 | mafuta | 500 | Maji, mafuta | 1 030 | 835 | 9 | 217 | |
6 | 20Mn2Bc'f | 880 | mafuta | 200 | Maji, hewa | 980 | 785 | 10 | 187 | |
7 | 20CrdJ | 880 | 800 | Maji, mafuta | 200 | Maji, hewa | 835 | 540 | 10 | 179 |
785 | 490 | 10 | 179 | |||||||
8 | 30Kr | 860 | mafuta | 500 | Maji, mafuta | 885 | 685 | 11 | 187 | |
9 | 35Kr | 860 | mafuta | 500 | Maji, mafuta | 930 | 735 | 11 | 207 | |
10 | 40Kr | 850 | mafuta | 520 | Maji, mafuta | 980 | 785 | 9 | 207 | |
11 | 45Kr | 840 | mafuta | 520 | Maji, mafuta | 1 030 | 835 | 9 | 217 | |
12 | 50Kr | 830 | mafuta | 520 | Maji, mafuta | 1 080 | 930 | 9 | 229 | |
13 | 38CrSi | 900 | mafuta | 600 | Maji, mafuta | 980 | 835 | 12 | 255 | |
14 | 20CrModJ | 880 | Maji, mafuta | 500 | Maji, mafuta | 885 | 685 | 11 | 197 | |
845 | 635 | 12 | 197 | |||||||
15 | 35CrMo | 850 | mafuta | 550 | Maji, mafuta | 980 | 835 | 12 | 229 | |
16 | 42CrMo | 850 | mafuta | 560 | Maji, mafuta | 1 080 | 930 | 12 | 217 | |
17 | 38CrMoAld | 940 | Maji, mafuta | 640 | Maji, mafuta | 980 | 835 | 12 | 229 | |
930 | 785 | 14 | 229 | |||||||
18 | 50 CrVA | 860 | mafuta | 500 | Maji, mafuta | 1 275 | 1 130 | 10 | 255 | |
19 | 2OCrMn | 850 | mafuta | 200 | Maji, hewa | 930 | 735 | 10 | 187 | |
20 | 20CrMnSif | 880 | mafuta | 480 | Maji, mafuta | 785 | 635 | 12 | 207 | |
21 | 3OCrMnSif | 880 | mafuta | 520 | Maji, mafuta | 1 080 | 885 | 8 | 229 | |
980 | 835 | 10 | 229 | |||||||
22 | 35CrMnSiA£ | 880 | mafuta | 230 | Maji, hewa | 1 620 | 9 | 229 | ||
23 | 20CrMnTie-f | 880 | 870 | mafuta | 200 | Maji, hewa | 1 080 | 835 | 10 | 217 |
24 | 30CrMnTie*f | 880 | 850 | mafuta | 200 | Maji, hewa | 1 470 | 9 | 229 | |
25 | 12CrNi2 | 860 | 780 | Maji, mafuta | 200 | Maji, hewa | 785 | 590 | 12 | 207 |
26 | 12CrNi3 | 860 | 780 | mafuta | 200 | Maji, hewa | 930 | 685 | 11 | 217 |
27 | 12Cr2Ni4 | 860 | 780 | mafuta | 200 | Maji, hewa | 1 080 | 835 | 10 | 269 |
28 | 40CrNiMoA | 850 | —- | mafuta | 600 | Maji, hewa | 980 | 835 | 12 | 269 |
29 | 45CrNiMoVA | 860 | - | mafuta | 460 | mafuta | 1 470 | 1 325 | 7 | 269 |
a. Marekebisho yanayoruhusiwa ya halijoto ya matibabu ya joto yaliyoorodheshwa kwenye jedwali: kuzima ± 15 ℃, joto la chini matiko ± 20 ℃, udongo wa matiko wa joto la juu 50 ℃.b. Katika mtihani wa mvutano, sampuli za transverse au longitudinal zinaweza kuchukuliwa. Katika kesi ya kutokubaliana, sampuli ya longitudinal hutumiwa kama msingi wa usuluhishi.c. Chuma kilicho na boroni kinaweza kurekebishwa kabla ya kuzima, na hali ya joto ya kawaida haipaswi kuwa kubwa kuliko joto lake la kuzima.d. Uwasilishaji kulingana na seti ya data iliyoainishwa na mwombaji. Wakati mwombaji hajataja, uwasilishaji unaweza kufanywa kulingana na data yoyote. e. Uzimaji wa kwanza wa chuma cha titan na Ming Meng unaweza kubadilishwa na kurekebisha. f. Uzimaji wa isothermal kwa 280 C ~320 C. g. Katika jaribio la mvutano, ikiwa Rel haiwezi kupimwa, Rp0.2 inaweza kupimwa badala ya Rel. |
Mahitaji ya Mtihani
Muundo wa kemikali:
Kunyoosha, Ugumu, Mshtuko, Boga, Kuinama, Jaribio la Ultrasonic, Eddy mkondo, utambuzi, kugundua kuvuja, Mabati