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  • The welding core is the metal core of the electrode. In order to ensure the quality of the weld, there are strict regulations on the content of various metal elements in the weld core. In particular, there are strict restrictions on harmful impurities (such as sulfur and phosphorus), and the quality of the weld core metal should be better than that of the base metal. Arc welding cannot be carried out on a smooth rod without a coating. This is because the arc stability is very poor, splashing is very large, and the weld is not well formed. After long-term practice, it is gradually found that the performance of the electrode is greatly improved by coating the welding core with some mineral raw materials (i.e. electrode coating). (1) Ensure stable arc combustion, so that the welding process is normal. (2) Using the gas produced after the drug skin reaction, protect the arc and the molten pool, prevent the harmful gases in the air (such as nitrogen, oxygen, etc.) from invading the molten pool, such as these gases will cause cracks and pores in the welding material, so that the welding can not achieve the ideal effect. (3) After the drug skin is melted, slag is formed, which covers the weld surface to protect the weld metal, make the weld metal slowly cool, help the gas escape, prevent the generation of pores, and improve the structure and performance of the weld. (4) After melting, various metallurgical reactions will be carried out, such as deoxygenation, sulfur removal, phosphorus removal, etc., so as to improve weld quality and reduce alloying element burning loss.

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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.

    proferred drywall screws

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  • Post time: 17-04-23

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  • Hexagonal

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  • En af de primære fordelene ved heavy duty steel grating er dets evne til at modstå ekstreme forhold. Materiellet er normalt fremstillet af høj kvalitet stål, der er behandlet for at forhindre korrosion og rustdannelse, hvilket gør det velegnet til udendørs brug og i industrielle omgivelser, hvor det kan blive udsat for kemikalier og andre aggressive stoffer. Denne type gitter kan ofte ses i kraftværker, olie- og gasindustrien samt i transport- og logistiksektoren.


  • 此外,考虑到采购过程中的运输和安装费用也是非常重要的。不同地区的运输成本不同,而一些地区的安装服务费用可能会更高。因此,在计算铝格栅的总成本时,除了材料价格外,还需考虑这些附加费用。


  • The designation 19% 204% refers to specific design measurements that define the spacing and sizing of the bars. The first number, 19%, indicates the spacing between the bars. This configuration allows for certain loads to be supported while maintaining adequate airflow and drainage. The second number, 204%, usually refers to the load-bearing capabilities and the overall strength of the grating.


  • Алюмінієва настилка для каткових шляхів міцність та легкість


  • Ein wesentlicher Vorteil von Rinneneinlaufschächten ist ihre Effizienz bei der Regenwasserableitung. Bei starkem Regen kann Wasser schnell und effektiv abgeleitet werden, was das Risiko von Überschwemmungen erheblich reduziert. Darüber hinaus tragen sie dazu bei, Erosion zu verhindern, die durch stagnierendes Wasser ausgelöst werden kann.


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  • بالنظر إلى كافة الفوائد التي تقدمها السياجات المجلفنة، فإنها تأتي كخيار رائد للمصممين والمقاولين والمالكين للأراضي. فهي تجمع بين القابلية للعملاء والجمالية، مما يجعلها الخيار الأمثل لأي مشروع. اختيار السياج المجلفن يعني اختيار الجودة والمتانة وحماية ممتلكاتك على مدى الحياة.


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  • Mesh Size: The mesh size of the screen determines the particle size that can be separated. Screens with smaller mesh sizes are effective in removing finer particles.