The sand blast craft has the production efficiency high, is processedwell the surface quality, the production cost is low and so on thecharacteristic, therefore obtains the widespread application in thefurniture production, the furniture product final surface quality andthe sand blast craft have close relationship. abrasive band  is the sand blastcraft main tool, how chooses appropriate abrasive band , lengthens abrasive band  theservice life, further enhances the sand blast the smooth finish andsmoothness is the question which abrasive band  in the use frequently meets.Along with science and technology progress, abrasive band  belt base, grindingcompound type, abrasive band  the production craft, the grinding compoundcementing agent all in unceasingly progresses.

Question: How chooses appropriately abrasive band ?

Answer: abrasive band  is by the grinding compound caking in the paper, thecloth and so on 可挠性 on the material, with carries on thebelt-shaped tool which rubs truncates and polishes. abrasive band  is by thebase material, the grinding compound and the cementing agent and so onis composed (chart 1).

Furniture production withabrasive band  the base material for the clothnature and the paper nature two kinds, the paper nature belt base isby passes through the special handling high strength paper does abrasive band the belt base, the paper nature belt base abrasive band  the price 比布nature belt base abrasive band  is low 1/3-2/3. The paper nature belt basequite is hard, can 磨出 the high smooth finish surface, in 精磨and ultra 精磨 center all uses the paper nature belt base abrasive band .Cloth nature belt base compared to paper nature belt 基强度 high,to temperature and humidity sensitive degree compared to paper naturebelt base low, cannot because the temperature, the humidity advanceloses the stability, the cloth nature abrasive band  abrasive resistanceabrasive band  is higher than the nature many.

In the furniture production the commonly used grinding compound forthe aluminum oxide, the silicon carbide, the zirconium oxide aluminum,the garnet, the manual sandpaper uses 玻璃砂 to make the grindingcompound, these grinding compound respectively have the characteristic(table 1).

Table 1 grinding compound performance characteristic

Name
Code number
Mineral ingredient
Characteristic

Brown just jade
A (GZ)
Al2O3
Brown brown, is stronger, is suitable, the moderate pricebroadly

Bai Gangyu
WA (GB)
Al2O3
The white, degree of hardness high, are crisper

Chromium just jade
PA (GG)
Al2O3 Cr2O3
The rose color, degree of hardness high, are crisper

Zirconium just jade
ZA (GA)
Al2O3 ZrO3
Toughness high, the resistance to wear good, is good fromsharp

Black silicon carbide
C (TH)
SiC
The black, has the gloss, degree of hardness high, brittlenessis big

Garnet (natural)
G
Al2O3 Fe2O3 SiO2
Black, brown, the yellow, the gloss gloomy, are good fromsharp

玻璃砂
GL (SB)
SiO2
The white or the green, the manual sandpaper use



The grinding compound granularity is thick thin has the verytremendous influence to the sand blast productivity and processingsurface roughness. Generally speaking, the rough grinding, theplasticity big, rub truncates the area in a big way, for avoidsinlaying the filings, the work piece is softer and so on to select粗粒度; 精磨, the work piece is harder and so on to select细粒度.

The grinding compound is agglutinates by the cementing agent on thebelt base. The cementing agent should have the intensity, theelasticity, the thermal stability water resistance, and so on. Atpresent commonly used cementing agent for animal glue, synthetic resintwo big kinds. Animal glue not water resistant, the synthetic resinwater resistant performance is good. Water resistant abrasive band  uses thewater resistant synthetic resin for the bottom rubber and theduplicate rubber, carries on strict waterproof processing.

Based on the belt base, the grinding compound, the cementing agentthree functions, the union processing object and the craftspecification choice appropriate belt base, 磨粒 and the cementingagent, may achieve the sand blast processes request.