1. <table id="81v9a"></table>
            

              <samp id="81v9a"></samp>
              
国产美女牲交视频,野花日本韩国视频免费8,放荡的美妇在线播放,蜜桃成熟电影,av天天看,好大好硬好深好爽想要20p,а√在线天堂官网,成年日韩片av在线网站 






              
   
              
   
   
              Service Hotline
              086-577-86923687
              
   
              

              





              
	
              
    	
        
              
    
              

              

              
 
              
  
  
  
  

  

 
              

              


              
        
        
        
              
            
        
              

              









              Current Location:Home - News - Products Knowledge
              


              


              
            
              
                
            
              

              



              



        
              Generate a magnetic stainless steel head cold causes and solutions
              
          
              Release Time:2011-09-16  Views :  
                    
              
         
              Stainless Steel head case more data is austenitic stainless steel as material, cold forming processing methods. After the cold worked austenitic stainless steel generally produce strong or weak magnetic, especially for stainless steel head, elbow, deep drawing parts, such as processing a large extent the product.
              

               
              

              Cold worked stainless steel head causes magnetism:
              

              First, when the metastable austenitic stainless steel cold forming, a portion of the austenite martensite transformation, and keep the original austenite coherent in shear mode in the absence of diffusion occurs very short phase transition, students called induced martensitic transformation or deformation induced martensitic transformation;
              

              Second, the martensitic stainless steel generally α 'Markov Hugh and dense hexagonal structure ε martensite two kinds of forms, including α' body-centered cubic structure having a magnetic martensite, ε martensite non-magnetic, but only higher nickel-chromium content, it produced ε martensite.
              

              So commonly used in the stainless steel parts of the organization by the austenite into martensite, it will generate a magnetic. Austenite stability by its chemical composition determines, work-induced martensite and is also related to the intensity of processing.
              

               
              

              If you want to avoid generating magnetic stainless steel head method it can only be based on a material change or for solution treatment.
              


              

   
              
      
         
              
            
              Key Words : 不銹鋼封頭
              
            
        
              
        
      
              
     
        
   
              
  
   
              
        
              Products
              
        
              

         
              
         
          
              
		    
              Elliptical head
              
		    
              Elliptical head
              
	    
              
                
            
          
              
		    
              Butterfly head
              
		    
              Butterfly head
              
	    
              
                
            
          
              
		    
              Spherical head spin edge
              
		    
              Spherical head spin edge
              
	    
              
                
            
          
              
		    
              Flat Head
              
		    
              Flat Head
              
	    
              
                
            
          
              
		    
              Spherical head
              
		    
              Spherical head
              
	    
              
                
            
          
              
		    
              Bow bottom head
              
		    
              Bow bottom head
              
	    
              
                
            
          
              
		    
              Conical head
              
		    
              Conical head
              
	    
              
                
            
          
              
		    
              Spherical cap shaped head
              
		    
              Spherical cap shaped head
              
	    
              
                
            
          
              
		    
              Insulation panel
              
		    
              Insulation panel
              
	    
              
                
            
          
              
		    
              Expansion Joints
              
		    
              Expansion Joints
              
	    
              
                
            
          
              
		    
              Jacket (cylinder) rotation side
              
		    
              Jacket (cylinder) rotation side
              
	    
              
                
            
          
              
		    
              Manhole flange
              
		    
              Manhole flange
              
	    
              
                
            
         
              
         
    
              



  
   
              
   
   
   
   
   
   

              








              



              
  
              
    
              
      NAVIGATION
    
              
    
  
              

  
              
    

    
              
      
      
              
        Wenzhou Shangshang Metal Products Co., Ltd. 
              
        Add : 208,Zhanhong Road,Dushan,Longwan CentralIndustry,Wenzhou
              
        Tel : 086-577-86923687 85981288    Fax : 086-577-86913687
              
        All Rights Reserved © 2016 Wenzhou Shangshang Metal Products Co., Ltd    Zhejiang ICP No. 08,005,782
        
      
              

              

                
	
              • Follow Us
                Follow Us
                • 

              


              




              


    
              


  
              










主站蜘蛛池模板：
www内射国产在线观看|
久久精品亚洲乱码伦伦中文|
一本一道久久综合狠狠老|
久久亚洲欧美国产精品乐播
|
久久无码人妻精品一区二区三区|
亚洲av伊人久久综合密臀性色|
黑巨人与欧美精品一区|
久久久国产精品黄毛片|
亚洲国产欧洲综合997久久|
黑人巨大av在线播放无码|
东丽区|
欧美成人看片一区二区三区尤物|
欧美黑人又粗又大高潮喷水
|
三年高清在线观看全集下载|
公粗挺进了我的密道在线播放|
国产免费看插插插视频|
激情人妻绿帽王八系列|
brazzers欧美巨大|
免费乱理伦片在线观看|
日韩不卡手机视频在线观看|
亚洲欧洲美洲无码精品va|
亚洲色无码播放|
大地资源在线资源官网|
亚洲日韩精品a∨片无码|
亚洲亚洲人成综合丝袜图片
|
洛浦县|
普宁市|
jk制服国产在线视频|
大地影视mv高清视频在线观看
|
正阳县|
国产精品99久久久久久猫咪|
国产精品成熟老女人视频|
我和闺蜜在ktv被八人伦|
桦南县|
国产精品久久久久7777|
东光县|
欧美牲交40_50a欧美牲交aⅴ|
风韵丰满熟妇啪啪区老老熟妇|
youjizz中国熟女|
中国亚洲女人69内射少妇|
强乱中文字幕在线播放不卡|