Karfawa China Don Sarrafiya Daga 2023 Ya Kasance 12.5 Miliyar Ton

Kullum mai tsarin daidai na kwayoyin makarantunƙi, misali cikin rubutuwa, biringa, gyaara, tambaya, da kuma aiki na rubutuwa, ya so daidai da kula ne da yanzu da hanyar mashincen. Tsarin dai dai na kwayoyin daidai ne daya da aka samfara daga alƙalami na steel materials, wannan suna zuciya daidai na 240 million tons na sanata, ya kamata jumla daidai na special steel products. Kamar wannan kwayoyin dai dai suka samu a cikin wani haɗin kasar, hanyar material suka yi shawo daidai. Wanda dome, hanyar steel na kwayoyin dai dai ne duk daidai da idaka da hanyar makarantunƙi na kwayoyin daidai, kuma ya samfara hanyar daidai da kuma standard na special steel industry.

Kullumai, anasake da 'mai sauka duniya,' suna ce gaskiya kuma komponenti aikin da aka yi amfani da. Daga cikin 2023, shirin zama China don kullumai yana soya 12.5 miliyar ton. Zama hanyar wannan yana samu mai tsarin zama, wanda suna ne cold heading steel, alloy structural steel, stainless steel, heat-resistant steel, da akwatin da suka yi amfani da, mai tsarin dai dai ne 400 to 1200 MPa. Kullumai suna yi amfani da rubutu na cold heading process, ya kawo zama ake rubutu na cold heading. A kanannan, domin raba'a da aka yi amfani da, zama don kullumai bata suna kasance masu fatigi, tare da cikakken fasko, koroshi, mai karfi, da mai karfi daidai.

Tsunanin gaba-dabbiya daidai a cikin industry fastener ya yi kula hanyar replacement ta CrMo steel biyu MnB steel. Nuna, waniyya mai tsarin fasteners a standard China (GB/T3098.1-2010) ya ne 12.9, kamar shi na wannan suna daidai, trend towards mechanical lightweighting ya danna fasteners mai tsari da aka samfara 14.9 suka da. Kana da, zuwa haka suna ya taimakawa sabon gaskiya a cikin production process kuma masu shirye daidai a cikin delayed fracture kuma fatigue failure.