重量計(jì)算公式; 
	
		          圓柱體重=直徑*直徑*高* 0.0062        
	
		          四角體重=長(zhǎng)*寬*高*0.00785                  
	
		          六角體重=對(duì)邊*對(duì)邊*高* 0.866        
	
		          遇到其它材料的計(jì)算公式:                    
	
		         鋁=鐵重*0.00275     白鐵=鐵重*1.05         
	
		         黃銅=鐵重*1.08      紅銅=鐵重*1.14      
	
		         矽銅=鐵重*1.10                                            
	
		        牙底徑和碾造徑算法:                                  
	
		         算法一:(1)         
	
		        公制:H=0.866025*P
	
		                    H1=0.541266*P        
	
		        碾造直徑公式:           D-(0.1443*p+0.6495*p)                        
	
		        例如:M4-0.7             3.95-(0.1443*0.7+ 0.6495*0.7)=3.4       
	
		 
	
		                                                                                                                                                                             備注:鋼牙螺絲取其牙距2/3                   
	
		     英制:                H=0.866025/nn*25.4                               H1=0.541266/nn*25.4                    
	
		                    D2=D-0.640519/nn*25.4                         D1=D-1.082532/nn*25.4                             
	
		      線(xiàn)徑:D-(0.13733*P+0.6433*p)            
	
		      例如:5/32-32        3.96-(0.13733*0.79+0.6433*0.79)=3.34                            
	
		        H:牙峰高度;P:牙距;H1:實(shí)用牙高;D2:中徑;D1:實(shí)用牙底徑;D:名稱(chēng)徑;三:中徑:                      D2=d2                           d2=D-2*3H/8             H= 0.866025p(60度牙山)         H=0.960491P(55度牙山)           例如:M6-1.0             6-(0.866025*3*2)/8=5.28
	
		 
	
		 
	
		     .螺絲單重:(頭大+頭厚+長(zhǎng)度)*線(xiàn)徑*線(xiàn)徑*0,00617
	
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