Recently, some companies and individuals interested in man-made granite products, but a certain lack of understanding, the letter calls have the knowledge required to understand this. To this end, we've put together a collection of some of the following information on the artificial granite for your reference, to satisfy the readers.
What is artificial granite products?
Artificial marble, artificial granite and artificial agate is the general term. Is unsaturated polyester resin and fillers, pigments mixed, add small amount of initiator, after certain processing procedures made. Accompanied in the manufacturing process can be made with a different pigment color is gorgeous, lustrous jade resembles natural marble products.
Artificial granite product manufacturing is simple, short production cycle, low cost, widely used in various indoor and outdoor decoration. Artificial granite 30 years ago in the United States come out of the earliest applications of artificial granite as a decorative material is the mid-90s a number of coastal cities, a few years after the widely popular. Now this positive trend and the spread of small and medium cities in the Mainland.
This product has the following characteristics:
1, Appearance - surface smooth, nonporous, surface defects such as linen, beautiful colors, the substrate surface to have a sense of suspended particles, with a certain degree of transparency.
2, physical and chemical properties - have sufficient strength, stiffness, hardness, impact resistance in particular, better scratch resistance.
3, durability - resistant to weathering, dimensional stability, resistance to deformation, and resistance to cold and heat.
Artificial granite and natural marble main differences?
Artificial granite with a non-toxic, non-penetration, cutting processing, color can be any deployment of any shape casting, can be of various shapes and mosaic patterns, casting piece with the sink, mosaic, etc. without leaving traces; and hardness than natural marble man-made granite, the other side can not be compared with the artificial granite, marble and also has some of the natural radioactive substances harmful.
What are the main man-made granite products used for?
Artificial granite can do high-end cuisine in addition to countertops, window sills, tub, basin, building column, senior recreation desk, but also can be cast into a variety of sculptural decoration, I believe there are more uses in the future people will be found.
Why good artificial granite molded products will appear after a few months warping, cracking phenomenon?
Wasted mainly poly resin and fillers, pigments, mixing inequality and promoting agent, initiator and resin ratio does not cause. Matrix in the artificial granite, that has support Banhao resins, fillers, pigments and other mixture, the resin can be maintained at a uniform filler suspension until the resin gel. If you fill the matrix in the artificial granite bad suspension, deposition to the bottom of the casting will result in castings, and filler distribution in the lower part. As the upper resin much more heat curing contraction, shrinking large; lower resin less, less heat curing, shrinkage, resulting in products of warping or cracking.
Artificial granite surface of the bubble, Ma surface caused by the factors? How to remove?
There are three main reasons:
1, the filler moisture content than normal indicators. When the moisture content of filler particles is high, around a small blister will form, because curing is an exothermic process, the release of heat damage to the balance of the particle outsourcing blisters, blisters left in the artificial granite to the base body, after curing the surface of the bubble will appear, Ma surface.
2, stirring during the process of air into the body of a man-made granite base.
3, the resin and curing agent, initiator ratio of the three incorrectly, residual bubbles in the matrix can not be discharged in time.
Remedy usually have three types:
1, vibration than brewing. It should be noted that the method is to use the platform amplitude, frequency and vibration time, the amplitude over the General Assembly to fill deposited on the surface of the template, resulting in the poor side of resin, curing slow constriction of small, low-temperature heat; while the other side because of the rich resin, curing block, slow contraction, high temperature heat, prone to warping phenomenon.
2, the chemical foaming method. Crosslinking with the resin has a blocking effect of the inhibitor (known defoamers) can prevent the resin polymerization in a given period, a period of time, the resin polymerization at normal speed and can, for the effective discharge of the bubble won the time. The method of the use of heat caused by resin curing had little effect. If the reduction and the promotion of initiator dosage, although polymerization of the resin can delay, but the fever curves of deformation due to resin and affect the quality of artificial granite.
3. Stirring vacuum method. Artificial granite by mixing remained negative pressure to boiling, is conducive to chemical reactions and air bubbles generated during mixing easily excluded.
The above three methods, especially in the first third method used in conjunction with the more practical, reliable, long-term use has the effect of an investment. The second method, although simple, but large-scale production costs too much.
Of resin used in artificial granite What are the requirements?
Resins should be considered in the choice of resin and curing properties of the chemical structure of both.
1, the resin between the chemical structure of commonly used acid - propylene glycol-based resin. It can meet the CMI (American Association for Artificial Marble) 500 cycles of thermal shock requirements, steam boiling distilled water for 48 hours, the color remained the same, anti-white, anti-foaming properties are good, but the price is more expensive. General manufacturing artificial granite resin can not be used.
2, resin curing performance: the time required in the cured resin to have an appropriate degree of low shrinkage and high strength of the pre-cured green strength.
What method can improve the hardness and artificial granite surface gloss?
Comparison of artificial granite products make perfect appearance, after the curing is very important. After curing the so-called man-made granite products is to a certain temperature, the heat for several hours. In general, the polyester resin curing after the stripping strength of the maximum strength of only about 50% to full cure time to be weeks or even months, and the ultimate man-made granite products can cure the strength and water resistance significantly increased. After the curing can be overcome by deformation, cracking and other defects and improve surface water resistance, heat shock, increase the strength of matrix resin, can improve the hardness and gloss of products, extended service life.
Minimum investment in the production of artificial granite products, and how much?
A high-performance, comprehensive and large-capacity mixer granulator is essential, and the other with a certain vibration platform, hand tools, easy-oriented saws, vacuum pumps, drying room, can produce a colorful man-made granite products . Small-scale production of equipment needed about minimum investment of 3.5 million. If the required high degree of mechanization, large scale, requiring the full range, about 10 million investment in equipment.
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