perforated metal panels decorative

perforated metal panels decorative

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perforated metal panels decorative perforated metal panels decorative

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  • Deoxygenation of boiling steel is incomplete, oxygen content is high, phosphorus and other impurities distribution is uneven, local overspending, aging sensitivity and cold brittle sensitivity are high, hot cracking tendency is added. If unqualified electrode is used, if the content of carbon and sulfur in the weld metal is too high, cracks will occur. For example, when factories use acidic electrodes to weld Q235-A steel, the high carbon fernoganese in the electrode coating will lead to thermal cracks in the weld.

    perforated metal panels decorative

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    perforated metal panels decorative perforated metal panels decorative

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  • perforated metal panels decorative

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    perforated metal panels decorative perforated metal panels decorative

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  • The coating of electrode plays a very important role in the welding process. If adopting the light of the coated electrode welding, is in the process of welding, oxygen and nitrogen in the air can invade the molten metal, the metal iron and beneficial elements carbon, silicon, manganese oxide and nitride oxide and nitride formation, and remain in the weld, weld slag or crack. And melt into the molten pool in the gas can make the weld produces a large number of pores, these factors can make the mechanical properties of the weld is greatly reduced, at the same time to make the weld brittle.

    perforated metal panels decorative

    ...

    perforated metal panels decorative perforated metal panels decorative

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  • perforated metal panels decorative

    ...

    perforated metal panels decorative perforated metal panels decorative

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