Molybdenum na Chromium Molybdenum Okpomọkụ Na-eguzogide Steel Welding Electrode
R306F
GB/T E5518-B2
AWS A5.5 E8018-B2
Nkọwa: R306Fe bụ pearlitic okpomọkụ na-eguzogide ígwè electrode na ígwè ntụ ntụ na obere hydrogen potassium ụdị mkpuchi nwere 1% Cr - 0.5% Mo. Ma AC na DC nwere ike iji, na ike welded na niile ọnọdụ na obere arc arụ ọrụ.The preheating nke weldment na interlayer okpomọkụ bụ 160 ~ 250 Celsius C n'oge ịgbado ọkụ.
Ngwa: A na-eji maka ịgbado ọkụ nke 1% Cr - 0.5% Mo pearlitic okpomọkụ na-eguzogide ígwè (dị ka 15CrMo), dị ka ọkụ ọkụ ọkụ elu ọkpọkọ na-arụ ọrụ okpomọkụ n'okpuru 550 ° C, uzuoku ọkpọkọ na nrụgide arịa na-arụ ọrụ okpomọkụ n'okpuru 520 ° C. , wdg. Enwere ike iji ya maka ịgbado ọkụ nke 30CrMnSi ígwè nkedo.
Ngwakọta kemịkalụ nke igwe weld (%):
C | Mn | Si | Cr | Mo | S | P |
0.05 ~ 0.12 | 0,50 ~ 0,90 | ≤0.50 | 1.00 ~ 1.50 | 0.40 ~ 0,65 | ≤0.030 | ≤0.030 |
Njirimara nke igwe weld metal:
Nwalee ihe | Ike ọdụdọ Mpa | Mpụta ike Mpa | Ogologo oge % | Uru mmetụta (J) Okpomọkụ nkịtị. |
Ekwenyere | ≥540 | ≥440 | ≥47 | ≥27 |
nwalere | 550 ~ 640 | ≥450 | 20 ~ 28 | 105 ~ 150 |
Mgbasa hydrogen ọdịnaya nke ọla edobere: ≤6.0mL/100g (glycerin usoro)
Nyocha x-ray: akara ule
Akwadoro ugbu a:
Dayameta mkpanaka (mm) | 3.2 | 4.0 | 5.0 |
Welding Ugbu a (A) | 100 ~ 130 | 140 ~ 180 | 180-210 |
Mara:
1. The electrode ga-abụọ maka 1 hour na gburugburu 350 ℃ tupu ịgbado ọkụ ọrụ;
2. Ọ dị mkpa iji kpochaa nchara, ọnụ ọgụgụ mmanụ, mmiri na adịghị ọcha na akụkụ ịgbado ọkụ tupu ịgbado ọkụ.