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Belt grinding belt is the use, in accordance with the requirements of the workpiece to be machined in a mechanical device, to corresponding contact means and, when a certain pressure, the high speed of the belt in contact with the workpiece surface generating friction surface of the workpiece margin gradually grinding or polishing smooth addition of new technology. Abrasive grains and the workpiece surface in relative motion, the abrasive and the workpiece surface a certain interference. According to the degree of interference, can be divided into three different processes.
(1) Swipe actually came into contact with the workpiece at this time, very little interference, abrasive friction surface only, from the "swipe" effect, then swipe abrasive on the workpiece, in fact, produced a removal of material elasticity and plastic deformation.
(2) Plough
With the machine feeding and cutting thickness increases, interference increases, then the abrasive surface of the workpiece on the plow "reticle", known as the "plow." At this time the plastic workpiece material flow, the material extruded to produce a movement, the direction from the abrasive front and sides of the extrusion, while removal of a small amount of material. (3) Cutting
Under the action of a certain pressure, when there is sufficient interference and accompanied by a cutting temperature, the starting real "cutting", this time in front of the sliding abrasive broken and the chips produced, a considerable fast removal rate. The number of abrasive grains, at the moment of contact with the workpiece, the cutting part of the abrasive grains, the other plow out of the groove, and some only play the role of sliding friction, even with a different parts of the abrasive grains and the same site in the different The processing time is different role. In addition, the rotational movement of strife belt wipe the role of the chips will move forward in front of the abrasive swarf cleaned.
3 (a) Suspension processing
A belt according to their production process, it should be dry, wet moderate, straight, stiff, but due to the packaging, lamination, and after long-term storage and long-distance transport, belt they often deformed, sometimes too dry and sometimes anti-surge (especially dry scrub belt), so that the performance belt itself has undergone great changes, so before using the belt hanging on a dedicated shelf for suspension processing, allowed a certain amount of time to return to normal status . On the one hand the suspension process, the belt will naturally straight belt with the other hand so that the temperature under the conditions used to obtain consistent, belt too anti-surge, may be appropriate for baking, to restore its original performance.
(Two) soft curved handle
Belt tough, often grinding brings bad influence (especially small belt) First, make belt swings or string action, and second, hit the punch work, affecting the accuracy of processing, in order to overcome this disadvantage, belt Soft music can be treated, so that belt to soften, so that the belt close to the contact wheel and guide wheel, belt will smooth functioning normally.
Soft curved belt processing method is to close the rear edges 90, the flexible curved along a first direction, to achieve softening purposes. Edges of the arc should be a small radius to prevent the belt broken. Also note that the soft song should not be too hard. If the belt is brittle, but also pay attention to the angle used for soft music, soft music angles are generally greater than 90 is appropriate.
(Three) Soaking treatment
Soaking treatment is only suitable for water belt. And not every belt in Soaking treatment should be carried out before use. If and when processing abrasive belt suspension remained too hard, it can in cold water, warm water, soak a few minutes appropriately, dry, you can use. Soaking treatment especially in the winter cold or the weather is dry, use more.
The main ingredients include ceramic belt kaolin, clay, porcelain stone, clay, coloring agents, blue and white material, lime glaze, lime alkaline glaze. Jingdezhen ceramic cup ceramic materials mainly kaolin, is composed mainly of kaolinite clay. Because first found in the northeast of Jiangxi Province, Jingdezhen high-Village is named. Its chemical empirical formula: Al203 · 2Si02 · 2H20, the percentage by weight as follows: 39.50%, 46.54%, 13.96%. Pure kaolin as dense or sparse pine block, the appearance of white, light gray. Contaminated by other impurities, can be presented dark brown, pink, beige, etc., with creamy, easy Yong Shounie into powder after calcination white color, high refractoriness, is an excellent raw material porcelain tea cup stains and coffee stains cleaned with toothpaste or salt, the effect is very good
Usage: Click the cup with water rinse (do not leave the water), and then with a dry salt or toothpaste in the cup wall above the rub, then rinse salt either salt or, or coarse salt also, you can help us remove the cup tea stains, we can use finger picks after brushing back and forth over the tea stains Needless two or three minutes you will find tea stains magically disappear too! But also easy to hurt mug citrus peel sometimes run into Chen old scale, how scrub brush is not clean all the time, how to do it? Do not worry! This time may wish to look in the kitchen with leftover lemon, or eating oranges peel after losing it! Coffee cup, use a little vinegar or lemon slices to wipe the cup edge, and if the coffee maker, we can put lemon slices, put the cloth with the upper part of the coffee maker, add water to the full. Way to cook coffee lemon, it drops to the bottom of the pot dripping. When the coffee pot with yellow cloud of water droplets, and this is evidence of citric acid clearance coffee stains. Generally, about twice the coffee maker can remove finished