冷拉型鋼相對(duì)普通鋼材來說各方面的性能已經(jīng)有了很大的改善，但是在長期使用中依然會(huì)出現(xiàn)一些缺陷，因?yàn)樗谋砻婧幸欢ǖ匿撹F成分，長期暴露在空氣中的話會(huì)因?yàn)檠趸艿讲煌潭鹊那治g。
Compared with ordinary steel, cold-drawn section steel has greatly improved its performance in various aspects, but some defects will still appear in long-term use, because its surface contains a certain amount of steel components, and long-term exposure to air will cause Oxidation and different degrees of erosion.
冷拉型鋼自身的抗沖擊能力雖然很高，但產(chǎn)品表層也會(huì)存在一些銹漬，所以為了提高冷拉型鋼的產(chǎn)品品質(zhì)，延長它的使用壽命，應(yīng)該要考慮到這些因素，對(duì)其采用磷化的措施。具體的操作方法是將鋁材料或鍍鋅成分涂抹在冷拉型鋼的缺陷處，并使得整件在磷化的過程中迅速的轉(zhuǎn)換成化學(xué)膜，從而形成磷化膜。與此同時(shí)，冷拉型鋼的磷化處理屬于化學(xué)與電化學(xué)的一種反應(yīng)，能夠在原有的基礎(chǔ)上提高金屬物的密度，使得冷拉型鋼有效的抵制被腐蝕的現(xiàn)象。
Although the cold-drawn steel's own impact resistance is very high, there will also be some rust stains on the surface of the product. Therefore, in order to improve the product quality of cold-drawn steel and extend its service life, these factors should be taken into consideration and phosphating Measures. The specific operation method is to apply an aluminum material or a galvanized component to the defects of the cold-drawn steel, and make the whole piece be quickly converted into a chemical film during the phosphating process, thereby forming a phosphating film. At the same time, the phosphating treatment of cold-drawn steel is a reaction between chemistry and electrochemistry, which can increase the density of metal objects on the original basis, so that cold-drawn steel can effectively resist the phenomenon of corrosion.
冷拉型鋼在冷拔之前，應(yīng)該要設(shè)置擋板進(jìn)行防護(hù)，如果沒有準(zhǔn)備擋板也應(yīng)該讓卷揚(yáng)機(jī)和冷拉方向保持90度，并且要使用封閉式的導(dǎo)向滑輪。在操作的時(shí)候，工作人員必須站在防護(hù)擋板的后方，防止冷拉時(shí)產(chǎn)生的碎屑蹦出。另外還要對(duì)設(shè)備進(jìn)行全面的檢查，如果發(fā)現(xiàn)滑動(dòng)或者是其他異常問題的時(shí)候,先停止機(jī)器的操作，放開鋼筋之后才能讓專業(yè)的人員進(jìn)去檢查，避免事故的發(fā)生。
Before the cold-drawn section steel is cold-drawn, a baffle should be provided for protection. If the baffle is not prepared, the hoist and the cold-drawing direction should be maintained at 90 degrees, and a closed guide pulley should be used. During operation, the staff must stand behind the protective baffle to prevent the debris generated during cold drawing from jumping out. In addition, a comprehensive inspection of the equipment should be carried out. If sliding or other abnormal problems are found, stop the operation of the machine first, and then let the professional staff go in to check after the steel bars are released to avoid accidents.
