Performance and production process of abrasive nylon wire
Abrasive nylon wire is the main material for making industrial brushes. Firstly, we need to understand the characteristics and production process of abrasive nylon wire.
I Slice type
The main chips used in the market to make abrasive silk are nylon and polyester. Polyester abrasive wire is widely used in specific occasions with high requirements for brush wire hardness, while nylon abrasive wire is widely used. The comprehensive performance of nylon abrasive wire is: PA612>PA610>PA1010>PA6
II Abrasives types
The mainstream abrasives used in abrasive wire in the market include silicon carbide, alumina, ceramics, and diamond. Other materials include cubic boron nitride, which is rarely used. The specific type of abrasive used mainly depends on the actual application of the customer. In terms of hardness, diamond>silicon carbide>ceramics>alumina
III Particle distribution of abrasive
There are two types, one is the particle size distribution of the abrasive itself, and the other is the dispersion degree of the abrasive in the resin monofilament.
1. Abrasive particle size distribution: the abrasive particle size is expressed in mesh, and can be queried if there is a national standard. From the national standard, it can be seen that the particle size range under the same mesh size is large, and most abrasive production enterprises can meet the requirements. In fact, this standard is very loose for ordinary abrasive tools, and we need smaller particle size distribution for abrasive wires.
2. Degree of dispersion of abrasive in monofilament: Uneven dispersion of abrasive in monofilament can lead to local accumulation of abrasive, easy breakage of brush wire, and unstable grinding effect.
3. The abrasive content is generally based on the application requirements, and generally 30% is commonly used. The main impact of the content on the performance of the brush wire is: high content, increased grinding force, improved wear resistance, decreased impact resistance, and easy to break hair.
IV Wire diameter
The diameter of a filament includes its size and degree of variation (coarse and fine filaments)
The size of the 1 wire diameter basically varies according to the number of abrasive mesh, and also depends on the application needs. Generally, the wire diameter is coarse, the hardness is high, the grinding force is strong, the service life is short, and the impact resistance is reduced (easily broken wire)
2. Variation degree of wire diameter: Due to the presence of a large amount of abrasive in the abrasive wire, it is easy to break the wire during spinning, and as the number of abrasive mesh and wire diameter increase, the probability of broken wire and coarse and fine wire occurrence increases. This requires optimization of the formula. At present, DuPont's abrasive wire on the market has a relatively uniform diameter due to the use of a special formula.
V colour
Abrasive wire is naturally colored and generally presents the natural color of the abrasive. Due to the fact that the abrasive is artificially synthesized and has a certain color difference, the color difference of the abrasive wire can be allowed. It should be noted that if the color of the abrasive wire is too consistent, it is necessary to pay attention to whether the color is matched. Generally, this color matching abrasive wire is produced from recycled materials.
VI Functionality
Abrasive silk requires different functionalities according to different application scenarios, which depends on the formula research and development capabilities of the production enterprise. There are functional abrasive silk in the market, including acid and alkali resistant silk and high-temperature resistant silk.
Product application:
Abrasive wire brushes have the functions of grinding, finishing, polishing, deburring, and are widely used in various industries. Numerous abrasive nylon brush wires are equivalent to an equal number of flexible files. When machining parts, they can be bent arbitrarily and naturally fit onto the contour of the workpiece. When entering grooves, cracks, and other areas that are difficult for ordinary tools to enter, the burrs are removed, and the sharp edges are rounded off into smooth and uniform arcs to achieve deburring The ideal effect of edge passivation and surface finishing machining.
Pre processing and post finishing of cold rolled sheet and galvanized/tinned sheet metal surfaces
Surface finishing of copper/aluminum strip coils
Automotive gear processing/deburring of engine parts
Finishing treatment of refrigerator compressor/air conditioning compressor components
Remove burrs and chamfers after mechanical processing
Surface polishing of die castings
Deburring of deep holes/related holes
Surface grinding before electroplating and coating
Military weapon cleaning
Cleaning and grinding of copper plates in electronic circuit boards
Woodworking/surface finishing of plywood/prominent processing of complex furniture wood patterns/polishing of concave and convex surfaces