日本无码中出在钱,欧美一级成人网站,黄色毛片免费看片,五区六区久久久久,日韩美女永久网址在线观看

鋼鐵一般依照它的提煉方法可分為柏塞麥轉(zhuǎn)爐鋼，堿性轉(zhuǎn)爐鋼，平爐鋼，電爐鋼等。依所含成份則可分為碳鋼，低合金鋼，高合金鋼等。依其產(chǎn)品形狀則分為形鋼，棒鋼，鋼板。為了特殊目的，而加入各種合金元素可得特殊合金鋼。
In accordance with the general steel refining method it can be divided into the Bessemer converter basic converter steel, steel, steel, electric steel etc.. According to the contents can be divided into carbon steel, low alloy steel, high alloy steel etc.. According to the shape of the product, it can be divided into shape steel, bar steel and steel plate. Special alloy steels can be obtained by adding various alloying elements for special purposes.
高溫鋼用于制造鍋爐在500℃到600℃的溫度下連續(xù)使用，仍能保持其機械特性。銅是高溫鋼的主要合金元素。耐熱鋼在鋼中加入鉻、鎳和硅能使鋼耐1300℃之高溫。此種鋼通常用于制造工業(yè)用爐及電阻絲等。在鋼中加入少量銅可延緩鋼在空氣中的腐蝕率。若在鋼中加12％以上之鉻則可避免鋼之腐蝕。目前食品工業(yè)及化學工業(yè)正廣泛地使用不銹鋼。廚房用具，餐具和外科用具也用不銹鋼制造。

High temperature steel can be used continuously for 500 hours to 600 degrees, and its mechanical properties can still be maintained. Copper is the main alloying element of high temperature steel. The addition of chromium, nickel and silicon into the steel can make the steel resistant to 1300 degrees of high temperature. This kind of steel is usually used to make industrial furnaces and resistance wires. Adding a small amount of copper into steel can retard the corrosion rate of steel in air. If more than 12% chromium is added in the steel, the corrosion of steel can be avoided. Stainless steel is widely used in the food and chemical industries. Kitchenware, tableware and surgical instruments are also made of stainless steel.
工具鋼的含碳量高于結(jié)構(gòu)用鋼，通常用于制鋸條，鉆頭等。特殊鋼則加入鉻、鎢、鈷、鉬、釩等合金元素，并經(jīng)適當?shù)臒崽幚怼Ｓ梢陨峡芍撹F的種類非常多，而各種鋼鐵成品各有其特殊的用途
The carbon content of tool steel is higher than that of structural steel, which is usually used for making saw blades, drills and so on. Alloying elements such as chromium, tungsten, cobalt, molybdenum and vanadium are added to the special steel and treated by proper heat treatment. From the above we can see that there are many kinds of iron and steel, and all kinds of steel products have their own special uses
企業(yè)生產(chǎn)能力雄厚,能夠充分滿足國內(nèi)市場需求.公司愿與廣大新老客戶精誠合作,共謀發(fā)展,以先進的技術(shù),卓越的品質(zhì)和優(yōu)惠的價格為用戶提供滿意的產(chǎn)品和服務(wù).熱忱歡迎各界朋友洽談合作!
The production capacity is strong, can fully meet the needs of the domestic market. The company is willing to cooperate sincerely with old and new customers, and seek common development, with advanced technology, excellent quality and preferential prices to provide satisfactory products and services customers. Warmly welcome all friends to cooperate with us!