Gas protective type flux-cored wire for 51 CrV4 spring steel and preparation method thereof
A flux-cored welding wire, 51crv4 technology, applied in welding equipment, welding medium, manufacturing tools, etc., can solve problems such as immature technology development, achieve good welding process performance, beautiful weld shape, and simple preparation method
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Embodiment 1
[0048] The preparation method of gas-shielded flux-cored welding wire for 51CrV4 spring steel is implemented according to the following steps:
[0049] Step 1, weigh 10% of manganese powder, 6% of chromium powder, 5% of vanadium powder, 2% of silicon powder, 28% of rutile, 12% of zircon sand, 14% of fluorite, 9% of quartz sand, long 10% mica powder, 4% mica powder, the sum of the mass percentages of the above components is 100%;
[0050] Step 2, mix zircon sand, fluorite, quartz sand, feldspar and mica powder weighed in step 1 to obtain mixed powder A, add water glass binder to mixed powder A and mix evenly, mix powder A and water glass The mass ratio of the binder is 5:1, and then placed in a heating furnace for sintering at 750°C for 5.5 hours, crushed, and passed through a 60-140 mesh sieve to obtain the mixed powder B;
[0051] Step 3, mix the chromium powder, silicon powder, manganese powder, vanadium powder, and rutile powder weighed in step 1 with the mixed medicinal p...
Embodiment 2
[0057] The preparation method of gas-shielded flux-cored welding wire for 51CrV4 spring steel is implemented according to the following steps:
[0058] Step 1, weigh 11% of manganese powder, 8% of chromium powder, 2% of vanadium powder, 1% of silicon powder, 32% of rutile, 12% of zircon sand, 13% of fluorite, 9% of quartz sand, long 8% mica powder, 4% mica powder, the sum of the mass percentages of the above components is 100%;
[0059] Step 2, mix zircon sand, fluorite, quartz sand, feldspar and mica powder weighed in step 1 to obtain mixed powder A, add water glass binder to mixed powder A and mix evenly, mix powder A and water glass The mass ratio of the binder is 5:1, and then placed in a heating furnace for sintering at 650°C for 4 hours, crushed, and passed through a 60-140 mesh sieve to obtain the mixed drug powder B;
[0060] Step 3, mix the chromium powder, silicon powder, manganese powder, vanadium powder, and rutile powder weighed in step 1 with the mixed medicinal...
Embodiment 3
[0066] The preparation method of gas-shielded flux-cored welding wire for 51CrV4 spring steel is implemented according to the following steps:
[0067] Step 1, weigh 12% of manganese powder, 7% of chromium powder, 5% of vanadium powder, 1% of silicon powder, 27% of rutile, 10% of zircon sand, 14% of fluorite, 10% of quartz sand, long 9% mica powder, 5% mica powder, the sum of the mass percentages of the above components is 100%;
[0068] Step 2, mix zircon sand, fluorite, quartz sand, feldspar and mica powder weighed in step 1 to obtain mixed powder A, add water glass binder to mixed powder A and mix evenly, mix powder A and water glass The mass ratio of the binder is 5:1, and then placed in a heating furnace for sintering at 670°C for 6 hours, crushed, and passed through a 60-140 mesh sieve to obtain the mixed drug powder B;
[0069] Step 3, mix the chromium powder, silicon powder, manganese powder, vanadium powder, and rutile powder weighed in step 1 with the mixed medicina...
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