Molybdenum da Chromium Molybdenum Heat Resistant Karfe Welding Electrode
R306F
GB/T E5518-B2
AWS A5.5 E8018-B2
Bayani: R306Fe ne mai pearlitic zafi-resistant karfe electrode tare da baƙin ƙarfe foda da kuma low hydrogen potassium irin shafi dauke da 1% Cr - 0.5% Mo. Dukansu AC da DC za a iya amfani da, kuma za a iya welded a duk matsayi tare da gajeren arc aiki.The preheating na walda da kuma interlayer zafin jiki ne 160 ~ 250 ° C a lokacin waldi.
Aikace-aikace: An yi amfani da waldi na 1% Cr - 0.5% Mo pearlitic zafi-resistant karfe (kamar 15CrMo), kamar tukunyar jirgi dumama surface bututu tare da aiki zafin jiki a kasa 550 ° C, tururi bututu da matsa lamba tasoshin da aiki zafin jiki a kasa 520 ° C. , da dai sauransu Ana iya amfani da shi don walda na 30CrMnSi karfe simintin gyaran kafa.
Abubuwan sinadaran na weld karfe(%):
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 |
Abubuwan kayan aikin walda:
Gwaji abu | Ƙarfin ƙarfi Mpa | Ƙarfin bayarwa Mpa | Tsawaitawa % | Ƙimar tasiri (J) Temp na al'ada. |
Garanti | ≥540 | ≥440 | ≥47 | ≥27 |
An gwada | 550 ~ 640 | ≥450 | 20 ~ 28 | 105 ~ 150 |
Yadawa hydrogen abun ciki na ajiyar karfe: ≤6.0ml/100g (hanyar glycerin)
Duban X-ray: I grade
Shawarwari na yanzu:
Diamita na sanda (mm) da | 3.2 | 4.0 | 5.0 |
Welding Current (A) | 100 ~ 130 | 140 ~ 180 | 180 ~ 210 |
Sanarwa:
1. Dole ne a gasa wutar lantarki don 1 hour a kusa da 350 ℃ kafin aikin walda;
2. Yana da mahimmanci don tsaftace tsatsa, sikelin mai, ruwa, da ƙazanta akan sassan walda kafin walda.