AISI 4140 1.7225 42CrMo4 SCM440 B7 Bhawa reSimbi
Tsananguro pfupi:
Simbi yesimbi yeAISI SAE 4140 isimbi yemhando yechromium molybdenum alloy inoshandiswa zvakanyanya mumabasa akajairika simbi ine simba rakawanda pazvikamu zvakaita sema axles, shafts, bolts, magiya nezvimwe zvinoshandiswa.
Mabhawa eSimbi yeKabhoni:
AISI 4140, 1.7225 (42CrMo4), SCM440, uye B7 Steel Bar mazita akasiyana emhando imwe chete yesimbi ye alloy. Anozivikanwa nekusimba kwakanyanya uye kusimba, anoshandiswa zvakanyanya mukushandiswa senge magiya nemabhoti. AISI 4140 ndiwo mazita ekuAmerica, 1.7225 ndiwo mwero weEuropean EN, SCM440 ndiwo mazita ekuJapan JIS, uye B7 inoreva giredhi rinosangana neASTM A193 specifications. Aya mazita anomiririra chromium-molybdenum alloy steel ine hunhu hwakafanana, uye sarudzo inogona kutsamira pamatanho edunhu kana eindasitiri.
Magadzirirwo e4140 1.7225 42CrMo4 SCM440 B7:
| Giredhi | 4140 1.7225 42CrMo4 SCM440 B7 |
| Zvakajairika | ASTM A29,ASTM A193 |
| Pamusoro | Dema, Yakakasharara, Yakatendeutswa |
| Dhayamita Range | 1.0 ～ 300.0mm |
| Kureba | Mamita 1 kusvika ku6 |
| Kugadzirisa | Yakatorwa Nechando Uye Yakakweshwa Yakakweshwa Nechando, Isina Pakati Uye Yakakweshwa |
| Zvinhu Zvisina Kugadzirwa | POSCO, Baosteel, TISCO, Saky Steel, Outokumpu |
Zvimiro & Mabhenefiti:
•Simba Rakakura: Mabhawa aya esimbi ane simba rakakwira, zvichiita kuti akwanise kushandiswa munzvimbo dzine simba uye kugara kwenguva refu.
•Kusimba: Dzinopa kusimba kwakanaka uye dzinodzivirira kukuvadzwa, zvichiita kuti dzikwanise kutsungirira mitoro inorema uye kushushikana kunochinja-chinja.
•Kuchinja-chinja: AISI 4140, 1.7225, 42CrMo4, SCM440, uye B7 imhando dzesimbi dzinoshandiswa zvakasiyana-siyana dzakakodzera kushandiswa kwakasiyana-siyana, kusanganisira magiya, mabhaudhi, shafts, uye zvikamu zvechimiro.
•Kusapfeka: Zvinhu zvinosanganisa simbi, zvakaita sechromium nemolybdenum, zvinobatsira pakuwedzera kusapfeka, zvichiita kuti simbi idzi dzikwanise kushandiswa mumamiriro ezvinhu anokwesha.
•Kugona Kugadzira: Simbi idzi dzinokwanisa kushanda zvakanaka kana dzikapiswa zvakanaka, zvichiita kuti michina ishande zvakanaka panguva yekugadzira.
•Kugona Kupinza: Dzinogona kupinza, kunyange hazvo kudziisa uye kupisa mushure mekupinza zvingadiwa kuchengetedza hunhu hwaunoda uye kudzivirira matambudziko akadai sekuoma.
Kuumbwa kweMakemikoro:
| Giredhi | C | Mn | P | S | Si | Cr | Mo |
| 4140 | 0.38-0.43 | 0.75- 1.0 | 0.035 | 0.040 | 0.15-0.35 | 0.8-1.10 | 0.15-0.25 |
| 42CrMo4/ 1.7225 | 0.38-0.45 | 0.6-0.90 | 0.035 | 0.035 | 0.40 | 0.9-1.20 | 0.15-0.30 |
| SCM440 | 0.38-0.43 | 0.60-0.85 | 0.03 | 0.030 | 0.15-0.35 | 0.9-1.20 | 0.15-0.30 |
| B7 | 0.37-0.49 | 0.65-1.10 | 0.035 | 0.040 | 0.15-0.35 | 0.75-1.20 | 0.15-0.25 |
Hunhu hwemakanika:
| Giredhi | Simba reKusimba [MPa] | Yiled Strengtu [MPa] | Kureba % |
| 4140 | 655 | 415 | 25.7 |
| 1.7225/42CrMo4 | 1080 | 930 | 12 |
| SCM440 | 1080 | 930 | 17 |
| B7 | 125 | 105 | 16 |
Gwaro reMibvunzo Inowanzo bvunzwa:
Sei Uchifanira Kusarudza Isu?
•Unogona kuwana zvinhu zvakakwana zvinoenderana nezvaunoda nemutengo wakaderera.
•Tinopawo mitengo yekutumira zvinhu pasuo nesuo, FOB, CFR, CIF, uye yekutumira zvinhu pasuo nesuo. Tinokukurudzira kuti uite dhiri rekutumira zvinhu iro richave rakachipa.
•Zvinhu zvatinopa zvinogona kusimbiswa zvizere, kubva pachitupa chebvunzo yezvinhu zvisina kugadzirwa kusvika pachirevo chekupedzisira. (Mishumo icharatidzwa pazvinodiwa)
•Tinovimbisa kupa mhinduro mukati memaawa makumi maviri nemana (kazhinji muawa imwe chete)
•Ipai mushumo weSGS TUV.
•Takazvipira zvizere kuvatengi vedu. Kana zvikasakwanisika kuzadzisa zvinodiwa zvenyu mushure mekuongorora sarudzo dzese, hatizokutsausei nekuita zvipikirwa zvenhema izvo zvinogadzira hukama hwakanaka nevatengi.
•Ipai basa rekupa nzvimbo imwe chete.
4140 vs 42CRMO4 – Musiyano uripi?
AISI 4140 ne42CrMo4 imhando imwe chete yesimbi, AISI 4140 iriyo yekuAmerica uye 42CrMo4 iriyo yekuEurope. Dzine makemikari akafanana, simba guru, uye kusimba, zvichiita kuti dzikwanise kushandiswa senge magiya nemabhoti. Pasinei nemazita akasiyana uye mwero wedunhu, dzinowanzoonekwa sedzinochinjika nekuda kwehunhu hwadzo hwakafanana.
Chii chinonzi 42CrMo4 simbi?
42CrMo4 isimbi yemhando ye chromium-molybdenum alloy inotemerwa neEuropean standard EN 10083. Inozivikanwa nekusimba kwayo kwakanyanya, kusimba, uye kuomarara kwakanaka. Iine kabhoni iri pakati pe0.38% kusvika 0.45%, inowanzoshandiswa mukushandisa zvinhu zvakasimba, zvakaita semagiya, macrankshaft, uye ma connecting rods mumaindasitiri akadai semotokari nendege. Simbi iyi inopindura zvakanaka pakupisa, ichipa kugona kugadzirisa hunhu hwemakanika, uye inoonekwa seyakaenzana nedzimwe nzvimbo dzakadai seAISI 4140 neSCM440.
Chii chinonzi simbi yemhando yeB7?
Giredhi B7 imhando yeASTM A193 standard, iyo inosanganisira zvinhu zvine simba remabhoriti ekushandisa mukupisa kwakanyanya kana kumanikidzwa kwakanyanya. ASTM A193 imhando yakagadzirwa neASTM International (yaimbozivikanwa seAmerican Society for Testing and Materials) uye inoshandiswa zvakanyanya mumaindasitiri emafuta negesi, petrochemical, uye kugadzira magetsi. Giredhi B7 simbi isimbi ine chromium-molybdenum yakaderera inodzimwa uye inodziya (yakagadziriswa nekupisa) kuti iwane hunhu hwemakanika hunodiwa. Zvakakosha kuziva kuti simbi yeGiredhi B7 inowanzo shandiswa pamwe chete nenuts dzeGiredhi 2H kuti ive nechokwadi chekuti inoenderana uye inoshanda mukushandiswa kwakasimba. Kana zvataurwa, zvinhu zvinofanirwa kusangana nezvinodiwa zvakatsanangurwa muASTM A193 neA194 standards kuti ive nechokwadi chekusimba kwakakodzera, ductility, uye zvimwe hunhu hwemakanika.
Vatengi Vedu
Mhinduro Kubva Kuvatengi Vedu
Mabhawa esimbi eAISI 4140, 1.7225, 42CrMo4, SCM440, uye B7 anopindura zvakanaka kana achipiswa, zvichibvumira kugadziriswa kwezvinhu zvakaita sekuomarara uye kuomarara. Mabhawa aya esimbi ane simba guru rekudhonza, zvichiita kuti akwanise kushandiswa uko simba riri chinhu chakakosha. Anopa kusimba kwakanaka uye kuramba kukanganiswa, zvichiita kuti akwanise kutsungirira mitoro inorema uye kushushikana kwakasimba. Mabhawa esimbi anochinjika uye anoshandiswa mumaindasitiri akasiyana-siyana, anosanganisira mota, ndege, kuvaka, uye kugadzira. Zvinhu zvinobatanidza, zvakaita sechromium nemolybdenum, zvinobatsira mukuvandudza kuramba kupfekwa, zvichiita kuti mabhawa aya esimbi akwanise kushandiswa mumamiriro ezvinhu ekukwesha.
Kurongedza:
1. Kurongedza kwakakosha zvikuru kunyanya kana zvinhu zvichitumirwa kunze kwenyika, zvinhu zvinopinda nenzira dzakasiyana-siyana kuti zvisvike kunzvimbo yekupedzisira, saka tinonyanya kufunga nezvekurongedza.
2. Saky Steel inorongedza zvinhu zvedu nenzira dzakasiyana-siyana zvichibva pazvigadzirwa. Tinorongedza zvigadzirwa zvedu nenzira dzakasiyana-siyana, dzakadai se,
