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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

Several Common Surface Treatments for Steel Structure Bolts

Several common surface treatments for steel structure bolts

Electroplating, hot dip galvanizing and mechanical equipment plating on the surface of fasteners are widely used. The whole process of creating a soil layer on the surface of fasteners can show a more beautiful and elegant surface after surface treatment, and the corrosion resistance of fasteners themselves will gradually improve.The key goal is to make the fasteners themselves get corrosion resistance, in order to improve the credibility and adaptability of fasteners application, so the quality of the surface treatment of fasteners to distinguish, the key is to check whether the corrosion resistance of fasteners is reasonable, and the intensity of the improvement is not in line with the estimated provisions.

 

1, fasteners, fastener of electroplating electroplating is refers to the fasteners must be part of the electroplating entering into a special solution, the solution will have some accumulation of metal materials, chemical substances, as in electricity flow according to the solution, the aqueous solution of metal materials chemical dissolving and adhesion on into part of the fasteners.The electroplating of fasteners generally includes hot dip galvanizing, copper, nickel, chromium, copper nickel alloy, etc.

2, fastener hot dip galvanized fasteners is the fastener of carbon steel components into the attention of about 510 degrees of molten zinc plating tank, so that the surface of the fastener iron zinc alloy material will change to passivation zinc treatment, and then get the actual effect of surface treatment.The price of hot-dip galvanized fasteners is higher than that of electroplating, about 1.5¥ ~2 ¥ for 1 kg.

 

3, mechanical equipment of fasteners plating mechanical equipment plating fasteners refers to according to the special physical and organic chemistry way, with coating metal material powder, impact the surface of the fastener, so that the coating metal material according to the way of cold welding, produce coating on the surface of the fastener, to achieve the actual effect of surface treatment.Mechanical equipment of fasteners plating key applicable screws, nuts, gaskets and other accessories.

Main products: steel structure bolts and nuts, high strength bolts and nuts, hex bolts, hex nuts, chemical bolts and nuts, and more types of customized screws, nuts and bolts.

China recommends: 3 Axis CNC, Stainless Steel Aircraft Quick Release Pin

Link to this article:Several Common Surface Treatments for Steel Structure Bolts

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