The sanding process with high production efficiency, good surface quality, low production costs, has been widely used in furniture production, furniture final surface quality of the product has a close relationship with the sanding process. Sanding belt sanding process, how to choose the right belt, and extend the life of the abrasive belt further improve sanded finish and flatness problems often encountered in the abrasive belt use. With the advancement of science and technology, abrasive belt with a base type of abrasive, abrasive belt Production, abrasive binder is in progress.
Abrasive belt fitted crumbs is very annoying, abrasive dust impaction in the gap between the abrasive grains, the abrasive is no longer exposed, belt and can not effectively sanded, or even can not see the abrasive belt abrasive, the abrasive tape lost sanding capacity,abrasive tools and friction heat is generated so that the abrasive belt or workpiece charred.
The common cause of the moisture content of wood debris embedded abrasive belt. The test increased by 1-2%, when the moisture content of wood debris embedded abrasive belt phenomena will increase more than 20%. The different moisture content of wood, embedded debris occurs is different, so the wood moisture content control in the range of easy grinding, effective measures to prevent the embedded debris.
Abrasive belt grinding sanding will produce heat. When the grinding heat reaches a certain temperature, cutting disc, lignin melted in the abrasive surface. So to prevent belt inlay crumbs from the control grinding heat, the reasonable choice of abrasive belt speed, the proper the grinding amount and feed speed, which can prevent the embedded debris. The different species grinding distinction, especially some species containing resin, in the control of the moisture content, by adjusting the abrasive belt speed, the amount of grinding feed speed grinding heat down.
Select the appropriate abrasives and abrasive coarseness also prevents embedded crumbs. The various abrasives have different performance, new grinding edge when a small broken after grinding sharpening blunt, good self-sharpening abrasive, abrasive belt remain sharp. The appropriate abrasive density level can be prevented embedded debris. Sanding equipment on the row of dust, blowing device should always check whether it is operating normally, the injection port to maintain sufficient positive pressure can Chuijin debris on the abrasive belt; dust exhaust port to maintain a certain negative pressure, so that the debris smooth excretion. Prevent debris retained within the apparatus, so that the abrasive belt to maintain a good condition can be prevented embedded debris.
Dongguan diamond wheel for natural diamond polished, it can replace the polycrystalline diamond (PDC), rough diamonds. Having the common characteristics of the diamond and a ceramic binding agent, binding agent plays gripping abrasive effect, and gives a certain geometrical shape in Dongguan diamond cutting wheel. It is an important symbol of Dongguan diamond grinding wheel performance. The binding agent is made of a thermoplastic resin binder with various fillers, (currently widely used is a phenolic resin, a small amount of application of the polyimide resin; filler application of some metal oxide). Dongguan diamond grinding wheel used in the nature of the various components of the binding agent the number of dosage has a great influence on physical properties, mechanical properties and grinding performance of the binding agent, therefore, must be selected for the material of the workpiece, the performance, in order to achieve good use of effects. The common characteristics of the diamond grinding wheel with diamond and ceramic binder, compared with ordinary corundum, silicon carbide abrasive grinding power, grinding temperature is relatively low, abrasive wear; can be adapted to a variety of coolant effect; abrasive grinding shape retention property is good, high precision grind the workpiece; larger pores within the abrasive grinding conducive chip removal and cooling, clogging, easy to burn the workpiece; abrasive self sharp, trimming the time interval is long, relatively easy trimming. Therefore, the increasing use of vitrified bonded diamond abrasive in some foreign countries.