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家庭中使用的各种缝纫针人们都很熟悉,但是古代的针是怎样制造的呢?打开明代的科学著作《天工开物》可知,原来,那时的针是由冷拔铁线制成的,并且还经过了固体渗碳处理。渗碳技术,始于中国渗碳工艺是近代复杂的化学热处理方法之一,而我国古代劳动人民早已掌握了这一技术,古代科学家宋应星还对此作了科学的总结,他所著的《天工开物》一书中在“针”节里记载着:“凡
The sewing needles used in the home are familiar to all, but how can the ancient needles be made? Opening the scientific book “Heavenly Creations” in the Ming Dynasty shows that at that time the needles were made of cold drawn wire , And also after solid carburizing. Carburization technology, which started in China carburizing process is one of the complex chemical heat treatment methods in modern times, and the ancient working people in our country have mastered this technology for a long time. The ancient scientist Song Yingxing made a scientific summary of this. His “ Open things ”a book in the“ needle ”section records:" Where