We may not hear much about the rolling wheel, steel letterhead, steel lettering code and steel lettering model, but we can use the logo in many places, and we have seen it. Now let's introduce the relevant content of the rolling wheel briefly for you. I hope it will be helpful to you.
1. Low hardenability. Generally, the steel seal of the rolling wheel and the water quenching diameter of carbon steel are only 10mm-20mm.
2. The strength and yield strength of rolling wheel, steel letterhead, steel lettering code and steel lettering die are relatively low. For example, σ s of ordinary carbon steel q235 steel is 235 mpa, while σ s of low-alloy structural steel 16mn is more than 360 mpa. The σ s/σ b of 40 steel is only 0.43, much lower than that of alloy steel.
Generally, the knurling wheel is made of dc53 material, vacuum treated, hrc58~62 hardness, and can be used to carve various characters, patterns, logos, etc. This is how to use the hobbing wheel.
The knurling wheel contains 15%~30% chromium. Its corrosion resistance, toughness and solderability increase with the increase of chromium content. Physical stress corrosion - it belongs to other types of stainless steel, such as crl7, cr17mo2ti, cr25, cr25mo3ti, cr28, etc. Ferritic stainless steel has good corrosion resistance and performance due to its high chromium content, but its mechanical and technological properties are poor, so it is mostly used for structures with little stress and as steel. This kind of steel can resist the corrosion of --- and brine solution, and has good high temperature performance and small coefficient of thermal expansion. Food factory equipment can also be used to make parts working under high temperature, such as gas turbine parts.
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