铸钢件

• In this paper , the reason and process of hot tear forming for the investment steel castings are analysed , the technological method of preventing hot tear is discussed , and the designing method of the self - cut - gate for shifting hot tear is introduced
  分析了熔模铸钢件热裂产生的原因和过程，论述了防止热裂的工艺措施，并介绍了自割内浇口转移热裂及其设计方法。
• The leading industries are digital control machine and processing center , heavy steel casting and precision processing , wind power equipment manufacturing , power distribution equipment , crane facilities , electric instrument industries , etc
  主要发展以中高档数控机床及加工中心、重型铸钢件及精加工，以及风力发电设备、配电装置、起重设备、电工仪器仪表为主导的产业。
• With the ripeness and perfection of this plant ' s technology , facilities and apparatus for process , the cast steel products manufactured by this plant have excellent economics , applicability and rationality , whether considering the quality - grade , the quantity or the medium & small size
  在工艺技术、设备、工装方面，已经进入高度成熟期，铸造产品无论在质量上数量上，作为生产大批量、中小件、中低档次的铸钢件，其经济性、适用性、合理性有比较大的优势。
• Steel casting : 20 tons arc - furnace steelmaking , 40tlf refiner furnace ; the max elevating capacity 125t ; the max casting products 80t , dimension of casting products length , width , high 8 . 54 . 53m , spun casting min outer diameter , min wall thickness , max length 1000154000mm ; various specification steel strands
  铸钢: 20t电弧炼钢炉40tlf精炼炉最大起重能力125t最大铸钢件80t铸钢件最大尺寸长宽高8 . 54 . 53m离心浇注最大外径最小壁厚最大长度1000154000mm各种规格连铸坯。
• Abstract : based on equivalent liquid surface descending method ( elsdm ) and isolated melting zone method , a multi - hot - spot and simultaneous shrinkage - feeding method was established to predict the shrinkage cavities of steel casting during solidification simulation . the shrinkage in each hot spot can be simulated and fed dynamically and simultaneously by itself using this method . then two practical steel castings were analyzed by this method
  文摘:本文在等效液面收缩法和孤立域法基础上建立了预测铸钢件缩孔的新方法? ?多热节和即缩即补方法，该法实现了对模拟铸件各热节的内部动态瞬时补缩，并采用该方法对两个实际铸钢件进行了缩孔分析。
• The welding performance of homemade wear - resistant cast steel has been studied base on the weldability tests , the repair welding procedures of wean - resistant cast steel ( abrasion - plates ) have been made up , the results show that satisfying repair welding quality can be attained with such welding conditions as the low hydrogenous alkalescent welding rod , preheating and slow cooling , strictly maintaining the interbedded temperature of 250 ~ 300 and controlling welding technique
  通过对其焊接性能的试验研究，制定了该类铸钢件（磨耗板）的补焊工艺：低氢型碱性焊条，预热与缓冷相结合的工艺措施，严格控制层间温度( 250 ~ 300 )及焊接工艺规范，可获得满意的修复质量。
• Third , on the base of expatiating on experimental research method and theoretical research method of joints , the paper points out two kinds of valid methods , which are used to analyze the tube joints stress of dendriform structure by making use of semi - analytical method and inelastic large deflection finite element analysis method , confirms to apply the evaporative pattern casting process as the facture method of dendriform structure cast joints , and detailed dissertates the casting theory , casting process , generation cause and prevention measure of casting flaws , heat treatment method and inspection standard about cast steel joints
  然后在阐述树状结构节点实验研究方法和理论研究方法的基础上，提出了利用半解析法和弹塑性大挠度有限元法两种有效分析树状结构管节点应力的方法，并给出两种方法的详细表达式及它们各自的优缺点。通过对铸钢件常见制作方法的介绍，确定了采用消失模法作为树状结构铸钢节点的制作方法，并详细论述了用消失模法制作铸钢节点的铸造原理、铸造工艺、铸造缺陷产生的原因及防治措施、铸钢节点的热处理方法以及检验标准。
• Q37 series shot blasting machines have a non - silo structure , and the iniside strucrure use special anti - abra - sion cast iron for protection . the lifting hook can automatically revolve , move up and down , advance and retract , they are suitable for surface cleaning and surface and surface and surface and surface reinforcing for all kinds of iron casting parts , forged pieces , and heat - treated pieces in large , medium and small qualities
  该系列抛丸机采用无地坑结构，室内全部采用特种耐磨铸铁防护，吊钩实现了升降、自转、进出自动化，它适应于多种、大中小批量的铸铁件、铸钢件、锻件、焊接件及热处理件的表面清理或强化。