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Diamond wheel, diamond wheel, diamond wheel supply
Time:2017-9-25 15:09:47  Browse:

English name: Diamond Bruting wheel. Alias "diamond playing wheel, 1A1 parallel ceramic diamond wheel". Belonging to the ceramic binder diamond grinding wheel of a kind, is currently widely used in the processing of diamonds, the name is derived from this. Suitable for grinding and polishing of natural diamonds, it can replace diamond polycrystalline (PDC), processing diamonds. With the common characteristics of diamond and ceramic binder, compared with ordinary corundum, silicon carbide abrasive, its grinding force is strong, grinding temperature is relatively low, abrasive wear is relatively small; can adapt to the role of various coolants; Grinding the shape of the abrasive to maintain a good, grinding the workpiece with high precision; grinding tools have more pores, grinding is conducive to chip removal and heat, easy to plug, easy to burn the workpiece; abrasive self-sharpening Better, dressing interval of a long time, dressing easier. So the ceramic binder diamond abrasive in some foreign countries the growing use of the country.

Diamond wheel properties

1, abrasive

Refers to the varieties of diamond and CBN models. At present, the diamond is divided into two categories according to the source: natural diamond and synthetic diamond. It can also be divided into various kinds according to the different requirements and the characteristics of the bonding agent, or according to the shape of the abrasive and the different treatment methods. Resin Adhesive Abrasives are generally made of synthetic diamond, which is mostly needle-like, low strength, brittle, rough surface, but the price is low; CBN selection of medium strength and surface coating of metal clothing varieties.

2, particle size

Refers to the abrasive particle size, commonly used particle size mark. According to the requirements of abrasive use, the use of screening method and water selection made of different thickness of the various particle size. Particle size at 40μm in thick, multi-purpose sieving method, according to its size is divided into 25 particle size, recorded as: narrow range: 16/18 ~ 325/400 wide range: 16/20 ~ 60/80

The size ranges of the individual particle sizes are expressed in terms of the size range of the elementary particles, and each of the elementary particles is determined by the nominal size of the two adjacent mesh cells. Particle size at 40μm in fine, multi-use sedimentation method. Different particle sizes are suitable for different machining accuracy and roughness requirements.

3, binding agent

The binder acts to hold the abrasive and imparts a certain geometric shape to the abrasive. It is an important indicator of abrasive performance. The binder is composed of a thermoplastic resin binder and a variety of fillers (currently widely used phenolic resin, a small amount of application of polyimide resin; filler application of some metal oxide), the various components of the nature of the amount of How much the physical properties of the binder, mechanical properties and grinding performance has a great impact, therefore, must be processed for the workpiece material, performance to be selected in order to achieve good results.

4, concentration

Superhard abrasive unique characteristics. To diamond wheel, for example, it refers to the diamond diamond layer per cubic centimeter of the volume of diamond contained in the corresponding percentage. The base value of diamond in the abrasive is 100%, equal to 0.88g / cm3 (4.4 carats / cm3); when the diamond density is 3.52 g / cm3 (CBN density is 3.47 g / cm3), this value is equivalent to volume 25%, all other concentrations are calculated according to this ratio,