2014年2月19日星期三

How do efficient abrasive manufacture

Using diamond grinding wheel, generally feed rate can not be too large, how to achieve efficient grinding it?
1, high-speed grinding
Speed ​​by increasing the diamond grinding wheel speed to achieve improved quality of grinding and grinding removal process method. Speed ​​grinding has the following advantages:
(1) at a certain amount per unit time under ground except  PINEZONE ceramic flap disc when the grinding wheel speed, abrasive cutting thinner, which makes the load of the individual abrasive grains reduce the diamond grinding wheel to improve durability;
(2) grinding the surface roughness is reduced; After improving diamond wheel speed, abrasive cutting thinner, making the wheel relative feeding quantity is small, the roughness is also reduced.
(3) the normal grinding force is reduced, improving the accuracy of the workpiece.
2, creep feed grinding large depth of cut PINEZONE abrasive fibre disc  big creep feed grinding, also known as deep grooves cut deep grinding grinding or motility. It is based on a large grinding depth (up to 30mm) and low table feed (3 ~ 300mm/min) grinding.
3, abrasive belt grinding with high-speed motion as grinding tools, grinding various surface method called belt grinding. Advantages belt grinding are:
High (1) productivity, abrasive belt on the collections of sharp, cutting large; sand bandwidth grinding large area, high productivity than the grinding wheel 5 to 20 times;
(2) grinding, low energy consumption, due to the light weight belt, tensioner wheel and small contact size, high speed small moment of inertia, so little power loss;
Good (3) processing quality, it can ensure constant work, less heat, no dressing, abrasive sharp, good belt cooling conditions, to  PINEZONE cut off wheel ensure accuracy and small surface roughness values.
(4) belt is soft, can stick to the shaping surface grinding, suitable for a variety of complex-shaped grinding surface.
(5) belt grinder structure is simple, safe operation.
The disadvantages are: rapid depletion belt, belt grinding small diameter holes can not be processed, blind holes, and can not be processed stepped cylindrical gear.
Of course, when using high-speed grinding, you must make sure the machine operating speed must be below the safe use of diamond grinding wheel line speed, and the use of creep feed grinding when large depth of cut, but also to ensure the safety of the grinding time.

2014年2月14日星期五

abrasive wheel wheel automatic molding technology to promote market transformation

One of the bottlenecks affecting resin sheet wheel production costs and efficiency , is its molding technology . Resin sheet requires large-scale production , the ideal is automatic compression molding , to save on labor costs and improve efficiency.
Back in the eighties, it carried the industry in PINEZONE non woven flap wheel  this area to explore and try , from abroad an automatic molding press . The device is compact , and differ only in the ordinary press more than one feed system .
Its working principle is: the mixture into the top of the hopper , through vibration, falls on a conveyor belt scraper Calibrating, adjust the transmission speed , the material delivered to the weigh hopper , after weighing accurate feeding into the mold cavity.
From the design principle point of view, should be  PINEZONE Sanding Sheets able to efficiently and effectively , but here there is a fatal flaw , so that was no matter how adjustments can not always reach the desired level of design . Because feeding is not as thin wheel smelting alumina, silicon carbide , the error can not be too raw material through the conveyor belt feeding, in order to weigh accurately is not an easy thing, repeated adjustments , not only can not improve efficiency, but wasted a lot of time.
Now uses a compromise , bypassing tricky feed systems, artificial feed, multi -station press , reduce labor intensity , production efficiency can be guaranteed .
Future still need to broaden our horizons , another  PINEZONE Mounted flap wheel way to design the ideal feed system , if successful, will produce thin wheel the same as the production of coated abrasives , efficient, fast, full mechanization and automation , to bid farewell to the labor-intensive production, thin wheel market will also be earth-shaking changes happen !

2014年2月12日星期三

abrasive manufacture abrasives market development

Angle grinding abrasives products as an integral part of industrial production and processing consumables , also commonly referred to as industrial supplies. Abrasives using a wide -ranging , mostly  PINEZONE non woven abrasive industrial production will use to industrial processing , industrial abrasives known as teeth reputation. Abrasives product features are only two , one cut two polished . Related to the industry, including machinery , equipment manufacturing, car polish , furniture polish , etc. .
With China's economic development , all walks of life to a large extent progress, but also stimulated the development of abrasives industry , however, the development of abrasives industry has also exposed  PINEZONE PSA sanding disc some problems, technical product innovation, energy saving products and other issues are restricting the abrasives industry . Abrasives industry low threshold, which created a whole industry is fragmented mess , there is no uniform production quality standards.
To maintain the healthy and orderly development abrasive industry , also need to address the following issues : the production capacity of decentralized , small- scale , low efficiency , China's abrasive enterprise scale structure is still quite reasonable, low industrial diversity order , small business still accounts for a large proportion ; new product development capability is weak , the domestic abrasive products are mainly set the PINEZONE abrasive fibre disc  low end, low technological content of products , and the lack of high- technology products , mainly dependent on imports , only to meet the automotive , aerospace , machine tools, bearings, Motorcycle shipbuilding industry needs about 1/3 ; overcapacity, low product homogeneity serious , especially its alumina production .