Steel Bar 4140 vs 4130 vs 4340: Zvese Zvaunoda Kuziva?

Kana zvasvika pakusarudza iyo chaiyo alloy simbi bhaa yemakanika, aerospace, kana maindasitiri mashandisirwo, mazita matatu anowanzo kuuya kumberi -4140, 4130,uye4340. Aya masimbi akaderera-alloy chromium-molybdenum ane mukurumbira nekuda kwesimba rawo, kusimba, uye machinability. Asi unoziva sei kuti ndeipi yakakodzera purojekiti yako?

Muchirongwa ichi chakazara, tinofananidza4140 vs 4130 vs 4340 simbi mbarirokumativi akakosha metrics akadai sekuumbwa kwemakemikari, zvivakwa zvemuchina, kuoma, weldability, kupisa kupisa, uye kukodzera kwekushandisa - kubatsira mainjiniya, vanogadzira, uye vatengi kuita sarudzo dzine ruzivo.

1. Nhanganyaya ku4140, 4130, uye 4340 Steel Bars.

1.1 Chii Chinonzi Low-Alloy Steels?

Low-alloy steels ndiwo simbi dzekabhoni dzinosanganisira zvidiki zvealloying zvinhu senge chromium (Cr), molybdenum (Mo), uye nickel (Ni) kuvandudza chaiyo zvivakwa.

1.2 Pfupiso yeGiredhi rega rega

• 4140 Steel: Simbi inosiyana-siyana inopa simba rakanakisa uye kuoma, inoshandiswa zvakanyanya mukugadzira maturusi, zvikamu zvemotokari, uye general engineering.

• 4130 Steel: Inozivikanwa nekusimba kwayo kwakanyanya uye weldability, inowanzoshandiswa mundege uye motorsports.

• 4340 Steel: Nickel-chromium-molybdenum alloy ine ultra-high simba uye kuramba kuneta, inofarirwa kune aerospace uye heavy-duty applications.

2. Chemical Composition Comparison

Key Notes:

• 4340akawedzeranickel, zvichipa kusimba kwepamusoro uye kuramba kuneta.

• 4130ine yakaderera kabhoni yemukati, inovandudzaweldability.

• 4140ine yakakwira kabhoni uye manganese, inosimudzirakuoma uye simba.

3. Mechanical Properties Kuenzanisa

4. Kupisa Kurapa uye Kuoma

4130

• Normalizing: 870–900°C

• Kuomesa: Kudzima mafuta kubva ku870°C

• Tempering: 480–650°C

• Zvakanakisa zve: Zvikumbiro zvinodaweldabilityuyekuoma

4140

• Kuomesa: Kudzima mafuta kubva pa840–875°C

• Tempering: 540–680°C

• Kuoma: Yakanakisa - yakadzama kesi kuomesa zvinogoneka

• Zvakanakisa zve: High-simba shafts, magiya, crankshafts

4340

• Kuomesa: Oiri kana polymer inodzima kubva 830–870°C

• Tempering: 400–600°C

• Notable: Inochengetedza simba kunyangwe mushure mekuoma kwakadzika

• Zvakanakisa zve: Magiya ekumhara ndege, zvinorema-basa dhiraivha zvikamu

5. Weldability uye Machinability

4130inomira kunze nekuve nyore kuchinjika uchishandisa TIG/MIG isina kutsemuka zvakanyanya, yakanakira tubing zvimiro zvakaita semakeji ekutenderera kana mafuremu endege.

6. Zvikumbiro neIndasitiri

6.1 4130 Steel Applications

• Aerospace tubing

• Racing mafuremu uye roll cages

• Midhudhudhu mafuremu

• Vanogamuchira pfuti

6.2 4140 Steel Applications

• Tool holders

• Crankshafts

• Magiya

• Axles uye shafts

6.3 4340 Steel Applications

• Zvigadziro zvekumhara ndege

• High-simba mabhoti uye fasteners

• Heavy machine components

• Oiri uye gasi indasitiri shafts

7. Kufunga Kwemari

Nekuda kwayonickel content, 4340 ndiyo inodhura zvakanyanya. Nekudaro, kuita kwayo mukukumbira zvikumbiro kunowanzo kururamisa mutengo.

8. International Standards uye Mazita

Ita shuwa kuti mutengesi wako wesimbi anopa zvigayo bvunzo zvitupa zvinoenderana neakakodzera zviyero sengeASTM A29, EN 10250, kanaJIS G4053.

9. Ungasarudza sei Kurudyi Simbi Bar

10. Mhedziso

Mumakwikwi eSimbi Bar 4140 vs 4130 vs 4340, hapana anokunda-saizi imwe - sarudzo yakanaka inoenderana nezvakokuita, simba, mutengo, uye welding zvinodiwa.

• Sarudza4130kana iwe uchida yakanakisa weldability uye zvine mwero simba.

• Enda ne4140kune yakakwirira-simba, inodhura-inoshanda sarudzo yakakodzera shafts uye magiya.

• Sarudza4340apo kuomarara kwakanyanya, kuneta simba, uye kushomeka kuramba kuchikosha.