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        微小孔高速自動鑽孔機
        
      
    
      

      






    
    
    
      
        
      
            
        
      
        
      
        
      
        
      
        
      
            
      
                
      
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                           430D立式數控鑽孔機
      
                        
      
						430D立式數控鑽孔機是由最新钢材底座支撑，底座上方为工作台与操作部件。立式數控鑽孔機主要用于钻孔、扩孔、倒角等加工操作。需要注意的是，对于在自動鑽孔機的使用也是很有讲                       
      
                        
      
                            
                        
      
                    
      
                    
                
      
                
      
                
      
                
                
      
                  
      
	
		
      
			
				
      
				
      
					  430D立式數控鑽孔機是由最新钢材底座支撑，底座上方为工作台与操作部件。立式數控鑽孔機主要用于钻孔、扩孔、倒角等加工操作。需要注意的是，对于在自動鑽孔機的使用也是很有讲究的，虽然是一种自动化的机械设备，然而也要懂得规范操作，否则发生的意外事故，也是不可避免的。很多时候，正是因为缺乏安全的意识，以致于在操作中无视规范操作。
      
				
      
					   430D是自動鑽孔機的一种型号归类，也是按照它打孔操作的有效行程来决定的。X轴行程主轴左右移动400MM，Y轴行程主轴前后移动300MM,Z轴行程上下移动为120MM，而且主轴面与工作台的距离与Z轴行程相同。由于430D的工作台最大承重只有50kg，所以它适合小工件的钻孔操作。要学会操作本司钻床。首先需要掌握自動鑽孔機的基本操作，正常和规范的操作也是减少故障发生，在设备加工之前，需要了解主轴，钻头，电缆等等的是否良好，确保一切就绪之后，方能开始加工操作。尤其是主轴的旋转方向，也是确保了正确加工。最后，遇到自動鑽孔機发生故障时，切不可过于惊慌，沉着冷静应对，直接关掉电源就可以了，而且设备发生故障时，也会有报警声音
      
					
      
					
      
			      		
		
      
	      

      

      
                
      
                

            
      
            
            
            
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 "And she--ah, yes. I see; and I see, too, that in all she ever said or did or seemed, before, she never made herself such a treasure to be longed for and fought and lived for as in the way in which she--" He paused.
 
 But Bruce knew nothing of this change of things. He was utterly puzzled. As he walked home he could make nothing of it. Hetty's story was too circumstantial to be anything but absolutely true. There must have been some strong reason for this change of part. Perhaps Lawrence could throw some light on it. He might even know the man Maitrank. At any rate he was on very friendly terms with Isaac Isidore, who would be sure to have the names of all the European capitalists at his fingers' ends.
 Lawrence read over the letters carefully, there was less here than he expected. They were all full of vague schemes of making money by various shady ways, and all bewailed the fact that the writer could not obtain the necessary capital to start. Really the letters were hardly worth reading.
 
 For loading and unloading carts and waggons, the convenience of the old outside sling is well known; it is also a well-attested fact that accidents rarely happen with sling hoists, although they appear to be less safe than running platforms or lifts. As a general rule, the most dangerous machinery for handling or raising material is that which pretends to dispense with the care and vigilance of attendants, and the safest machinery that which enforces such attention. The condition which leads to danger in hoisting machinery is, that the power employed is opposed to the force of gravity, and as the force of gravity is acting continually, it is always ready to take advantage of the least cessation in the opposing force employed, and thus drag away the weight for which the two forces are contending; as a weight when under the influence of gravity is moved [65] at an accelerated velocity, if gravity becomes the master, the result is generally a serious accident. Lifting may be considered a case wherein the contrivances of man are brought to bear in overcoming or opposing a natural force; the imperfect force of the machinery is liable to accident or interruption, but gravity never fails to act. Acting on every piece of matter in proportion to its weight must be some force opposing and equal to that of gravity; for example, a piece of iron lying on a bench is opposed by the bench and held in resistance to gravity, and to move this piece of iron we have to substitute some opposing force, like that of the hands or lifting mechanism, to overcome gravity.
 that I have partially discharged that debt--besides, I suppose I could
 After bathing, during their long prayers to the gods of the river, almost as sacred here as it is at Benares, the pilgrims threw grain to the half-tame fish. Steering vigorously with their tails, the creatures turned and rolled, making eddies of light in the water, and hurrying up to the falling grain occasionally upset the equilibrium of some old woman still taking her bath. At the top of the bank, in the blazing sunshine, two fakirs, squatting in the dusty road, remained unmoved by all this turmoil, seeing nothing, hearing nothing, absorbed in a fixed thought which concentrated their gaze[Pg 297] on an invisible point. The fall of an old woman into the Ganges, with all the shouting that such an incident entails in India, left them quite indifferent; they did not stir, did not even glance at the river as the woman was taken out unconscious.
 
 
 The members all looked up in astonishment.
 "So I understand," Dr. Haenlingen said. "And you talked. And—whatever his situation—you managed to increase his tension rather than understand or lessen it."
 
 "But I d?an't want you to waste your money."
 
 
 
 
    
 

      
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