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Problems of quartz stone countertops

There are imported products and domestic products. What is quartz stone?

The quartz stone we are talking about now is a new type of stone synthesized by more than 90% timely crystals, resins and other trace elements. It is a large-size plate pressed by a special machine under certain physical and chemical conditions. Its main material is timeliness. Quartz stone has no radiation and high hardness, which makes the quartz stone table surface scratched (Mohs hardness 7); Non-staining (vacuum manufacturing. Dense and non-porous); It won't burn well. Can withstand the temperature of 300℃); No wear (30 polishing processes need no maintenance); Non-toxic and non-radiation (NSF certification, no heavy metals, direct contact with food). Quartz stone countertops have various colors, and Gobi series, crystal series, granite series and shining star series are more distinctive. It can be widely used in public buildings (hotels, restaurants, banks, hospitals, exhibitions, laboratories, etc.). ) and home decoration (kitchen countertops, washstands, kitchen walls, dining tables, coffee tables, window sills, door covers, etc.). This is a kind of non-radioactive pollution.

Synthetic quartzite:

Under vacuum condition, a large plate is made of Shi Ying crystal (94%), resin (6%) and trace pigment by heterogeneous polymerization technology, and 94% timely crystal is the main structure, which makes the texture harder and denser, and has the characteristics of wear resistance, pressure resistance, high temperature resistance, corrosion resistance and permeability resistance that other decorative materials can't match.

Seasonal crystal is a natural mineral whose hardness is second only to that of diamond in nature, and its surface hardness is as high as Mohs hardness of 7.5, which is far greater than the sharp tools used by people every day, even if a sharp paper cutter is used to scratch the surface, no trace will be left. Its melting point is as high as 1300℃, it will not burn due to contact with high temperature, and it also has the incomparable high temperature resistance characteristics of other artificial stones.

Artificial quartz stone is a kind of compact and non-porous composite material made in vacuum, which is very suitable for working in complex environment. Its quartz surface has excellent corrosion resistance to acid and alkali in the kitchen, and liquid substances used in daily life will not penetrate into it. The liquid left on the surface for a long time only needs to be scrubbed with clean water or ordinary household cleaner with a rag, and the residue on the surface can also be scraped off with a blade if necessary. The shiny and bright surface of artificial quartz stone has undergone dozens of complicated polishing processes, and it will not be scratched by spatula, infiltrated by micro-liquid substances, and will not be yellow and discolored. Daily cleaning only needs water, which is simple and easy. Even if it is used for a long time, its surface is as bright as the newly installed countertop and needs no maintenance.

Quartz stone surface is smooth and smooth, without scratches. The dense and non-porous material structure makes bacteria have nowhere to hide. The material manufacturing has passed the certification of NSF in the United States, and it can directly contact with food and is completely non-toxic. We use selected natural stone crystal minerals, with a silica content of over 99.9%, and remove impurities and purify them in the manufacturing process. The raw materials do not contain any heavy metal impurities that may cause radiation. 94% timely crystals and other green additives make our quartz stone completely non-toxic and radiation-free, so it can be used safely. Rich TINT makes it have the texture of natural stone and beautiful surface luster.

Characteristics of quartz stone and the reasons for these characteristics

1, scrape.

The timely content of quartz stone is as high as 94%. Seasonal crystal is a natural mineral whose hardness is second only to that of diamond, and its surface hardness can be as high as Mohs hardness of 7.5, which is much larger than sharp tools such as knives and shovels used in the kitchen and will not be scratched by it.

2, pollution-free

Quartz stone is a kind of compact non-porous composite material made in vacuum. Its quartz surface has excellent corrosion resistance to acid and alkali in the kitchen, and liquid substances used in daily life will not penetrate into it. The liquid left on the surface for a long time only needs to be wiped with clean water or clean and bright detergent and a rag. If necessary, the residue on the surface can be scraped off with a blade.

3, not old

The shiny surface of quartz stone has undergone more than 30 complicated polishing processes, and it will not be scratched by knives and shovels, infiltrated by liquid substances, and will not be yellowed and discolored. Daily cleaning can be done simply by rinsing with clean water, which is simple and easy. Even if it is used for a long time, its surface is as bright as the newly installed countertop and needs no maintenance.

4. It won't burn.

Natural aging crystal is a typical refractory, and its melting point is as high as 1300 degrees. Quartz stone made of 94% natural and timely is completely flame retardant, will not burn due to contact with high temperature, and has incomparable high temperature resistance characteristics such as artificial stone.

5, non-toxic and radiation-free

Quartz stone surface is smooth and level, without stains. The dense and non-porous material structure makes bacteria have nowhere to hide. The material manufacturing has passed the NSF certification in the United States, and it can directly contact food, which is completely non-toxic!

Quartz stone is made of selected natural timely crystalline minerals, and its silica content exceeds 99.9%, and it is purified in the manufacturing process. Raw materials do not contain any heavy metal impurities that may cause radiation, and 94% timely crystals and other resin additives protect quartz from radiation pollution!

Why develop quartz stone?

At present, the main cabinet countertop materials at home and abroad are fireproof board, stainless steel, natural stone, artificial stone, quartz stone and so on. Among them, quartz stone countertops are most valued by the market for quality.

4, artificial stone countertops:

Imported from China, made of stone powder and man-made fiber at high temperature and high pressure. Its main characteristics are bright colors, no pores on the surface, strong pollution resistance, acid resistance, corrosion resistance, wear resistance and easy cleaning. The treatment of deformation, adhesion, turning and other parts is original; Because there are no pores on the surface, oil and water stains are not easy to penetrate into them, so the anti-pollution ability is strong; It can be bonded seamlessly at any length, and two pieces are bonded and polished with the same adhesive, which is seamless. However, artificial stone is easy to be scratched, its hardness is not enough, and its antibacterial and environmental protection are not ideal.

5. Quartz stone:

Compared with the above mesa materials. Quartz stone is a large plate made of quartz stone crystal, resin and trace pigment by heterogeneous polymerization technology under vacuum. Up to 94% of the timely crystal is the main structure, which makes it harder and denser, and has the characteristics of wear resistance, compression resistance, high temperature resistance, corrosion resistance and impermeability that other decorative materials can't match. Rich TINT makes it have the texture of natural stone and beautiful surface luster. Quartz stone countertops have incomparable advantages over other materials and have been sought after by people since they came into being. However, due to the immature technology, only a few manufacturers in the world can produce quartz stone countertops, which are extremely expensive. Beveron enterprises have strong R&D and design capabilities, and at the same time, large-scale production has greatly reduced production costs, making Beveron quartz stone products and prices more advantageous than foreign countries. At the same time, with the further maturity of production technology, quartz stone will be more cost-effective than other artificial stones (the price of resin is much higher than that of timely), while the higher the timely content in quartz stone, the lower the resin content, the better the quality, the closer to nature and the less prone to deformation.

Development course of quartz stone technology

Quartz stone was invented and created by Italy's Bailitong Company, which started from waste products and developed into the third generation plate production line now. The investment of Bailitong quartz stone production equipment and a production line is 654.38+0.7 billion yuan. It is understood that there are currently 14 production plants in the world, all of which use Belitong equipment. After three years of investment in Hanwha, South Korea, the second production line is planned this year. Hanwha signed an additional agreement with Belitong for market reasons-before 2065438+00, Belitong's equipment was not allowed to be sold to China.

According to this situation, quartz stone can only be produced independently in China. Through the efforts of all the colleagues in Beveron for three years, today we have completely mastered the core technology of quartz stone production, and the technical level is close to Belitong, which is unmatched in the short term. There is still a certain gap between automation level and Bailitong company, which needs to be improved continuously. Other quartz stone manufacturers in China can't produce quartz stone at present. First of all, the board can't produce pure quartz stone (it can only be more than 80% in time, and the rest is added with calcium powder, and the resin content far exceeds 10%). The timely content of Beferon quartz stone is 93-94%, and the resin content is 6-7%. Because the higher the resin content, the worse the quality of quartz stone, the easier it is to deform and the worse the scratch resistance. This is not only a numerical problem of 10% and 6-7%, nor is it to reduce the resin content from the perspective of cost, but only the resin content can achieve the corresponding quality. The higher the content of quartz stone, the more difficult it is to produce, but if the resin content is not reduced to 6-7%, it is impossible to produce qualified 3.05× 1.45 m large plates. Quartz stone has just started in China, so many domestic manufacturers can only confuse the market with low-grade Shi Gang or quartzite. Quartz stone plate is the higher the quartz stone content, the lower the resin content, the better the quality, the closer to nature, and the less prone to deformation.

How to identify the quality of quartz stone

At present, everyone in the quartz stone market knows that quartz stone is the best stone at present, and using this stone is almost a symbol of identity. But because the domestic market has just started, to say the least, consumers don't know much about quartz stone. Therefore, there are quartz stones from abroad, Beveron quartz stone and apophyllite quartz stone (quartz stone, quartz stone and quartz stone with high resin content) in the market, which are all called quartz stone. How do we distinguish these quartzites?

1. Comparison between Beveron Quartz Stone and Other Quartz Stones in China

1, specification:

A. Beveron quartz stone: the specification is 3.05× 1.45 m (untrimmed)-this specification is the most reasonable, economical and economical material used on the kitchen cabinet countertop;

B other quartzite in China: the specification is 3.05× 0.76m or 2.4×1.2m. 。

From the use of the table, Beveron quartz stone is more economical in material.

2. Appearance:

A, Beveron quartz stone: clear, bright color, no need to film;

B, other quartz stones in China: the color is cloudy and hazy, and it needs to be covered with film.

3. Raw materials:

A. Beveron quartzite: 94% of the materials are timely (silica content exceeds 99.9%, melting point is as high as 1300℃), and 6% are resin and trace pigments. Sharp cross section and good reflectivity.

B other quartz stones in China: the quartz sand content is low, up to 80%, and the resin content is high (above 20%), in which a large amount of calcium powder is added, which is not scratch-resistant. Smooth cross section, turbid, non-corrosive, poor reflectivity. Or add Shi Gang and marble. Shi Gang and marble particles are different from timely particles, which are crystal-like, thorough and have crystal texture. Granite and marble particles are turbid and opaque, and their hardness is extremely low. The Mohs hardness of granite surface is only 4-5, and that of marble is only 2-3. As a result, other quartz stones in China are not scratch-resistant, and they are all manufactured by laminating.

Second, the comparison between Beveron quartz stone and foreign quartz stone.

1, appearance:

A. Glossy: The gloss of Beveron quartz stone is above 60 degrees, and that of foreign quartz stone is about 45 degrees;

B, smoothness: Beveron quartz stone is not particularly smooth, and it feels like hanging hands when touching the surface. Quartz stone abroad is quite smooth, like silk. Because domestic quartz stone has just started, domestic abrasive manufacturers are relatively backward in this respect, but Beveron Company can't wait, so Beveron Company has specially organized a polishing team to take this as a subject, extensively absorb foreign experience, and define the phased goals. I believe that the surface quality of our products will be greatly improved in a short time.

C, color: Beveron quartz stone is in the primary stage, and the color is not particularly pure. Foreign quartz stone has been designed by many designers and adjusted for more than 30 years, and its color is quite pure, giving people a comfortable feeling. Now Beveron has invested a lot of energy and financial resources to make adjustments in this respect, so the company's products will be gradually upgraded in the short term. In addition, some color products are not perfect, because Shi Ying products have different technical requirements for different colors, but the core technology of Beveron has been completely mastered, but the details need to be improved.

Iii. Problems and Solutions of Beveron Quartz Stone

1, color: Beveron quartz stone is in the primary stage, and the color is not particularly pure. At present, Beiweilong Company is digesting and absorbing the advantages of foreign products, hiring color experts to design, and collecting feedback from end consumers extensively. I believe there will be considerable improvement in a short time.

2. Smoothness: Beveron quartz stone is not particularly smooth, and it feels like hanging hands when touching the surface. Quartz stone abroad is quite smooth, like silk. In this way, there will be a small amount of residual marks when the surface of Beveron quartz stone is tested with high permeability materials such as ink, so it is recommended to clean it with banana oil. The main reason that restricts the smoothness is that the domestic quartz stone has just started, and the domestic abrasive enterprises are backward, and they have not invested their energy in this market. Therefore, Beiweilong enterprises widely absorb the experience of foreign polishing teams and purchase abrasives from abroad for processing, which will greatly improve the surface quality of our products in a short time.

3. Incomplete edges and corners: Beveron quartz stone will have a small amount of incomplete edges and corners when it leaves the factory. But this does not affect your use. Apart from the incomplete parts, Beveron Quartz Stone ensures that you have an effective size of 3000× 1400㎜. Therefore, Beveron quartz stone adopts the method of not cutting raw edges, so that each plate will have more skirts on the table, which is quite economical for you.

4. Miscellaneous points: Beveron quartz stone will have some miscellaneous points more or less. The material of Beiweilong quartz stone is the same as that of foreign countries, which comes from natural timely ore. After crushing and screening, it is inevitable to produce some miscellaneous points. Consumers have a misunderstanding that quartz stone is a brand-new product and should be a perfect thing. This needs to guide consumers with everyone.

5. A small amount of caking phenomenon: in the process of producing mixed color products (such as Jinhua and Nordic style). ) or products with special decorative effects, in order to pursue two or more colors and special decorative effects, some monochromatic spherical parts will be retained. This is reserved purely for the pursuit of decorative effect. Of course, Beveron will make adjustments in this respect according to customers' preferences.

6, flatness

Sometimes the thickness of the reverse side of the plate is not particularly uniform in several places, mainly because we have been imitating the standards of natural stone in the past. This requires us to be more careful when dealing with it. Of course, Beveron Company has absorbed customers' requirements, and combined with the quality of foreign quartz stones, improved the quality standards of this part of the content.

Fourth, the identification standard of quartz stone

At present, the standard of quartz stone is still a blank in the domestic stone industry, and all testing institutions can only refer to the standard of natural stone for testing, so all indicators of quartz stone exceed the standard of natural stone. At present, the international standard in this field still adopts American ASTM standard. According to the test of quartz stone abroad, we have listed the following technical indexes of quartz stone as the identification standard of quartz stone:

1, hardness: the Mohs hardness of the surface is 7, and the simple detection method is to squeeze and observe the damage point with an iron sharp tool without scraping.

2. Density: 2.37-2.5

3. High temperature resistance: it can withstand 300℃. The stainless steel cup filled with boiling water will not change color after being placed on the table for 30 minutes. Or use burning cigarette butts on quartz stone, which will not change color.

4, stain resistance: with soy sauce, vinegar, coffee drops on the quartz stone, after 24 hours with detergent water to wipe, observation does not change color.

5. Environmental protection: it can provide green environmental protection certification tested by authoritative departments.

6. Fire resistance: 10㎜×30㎜ quartz stone bars will not burn when exposed to open fire.

7. Acid and alkali resistance: the surface is etched with 3% hydrochloric acid solution or 100g/L citric acid solution and 30g/L sodium hydroxide or potassium hydroxide solution, and there is no obvious change on the surface.

8. Water absorption: less than 0.04%. After sprinkling a little water on the surface of quartz stone for 24 hours, observe that the color does not turn white.

9. Bending strength: the standard is SN/T0308- 1993, and the test result of Beveron quartz stone is 40Mpa in dry state and 44Mpa in wet state.

10, compressive strength: the standard is SN/T0308- 1993, and the test results of Beveron quartz stone are dry 196Mpa and wet 192Mpa.

1 1, thermal expansion: the standard is SN/T 17748- 1999, and the test result of Beveron quartz stone is 0.18×14 ㎝/℃.

12. Radioactivity limit index (no radiation): internal and external exposure indexes meet GB6566-200 1. The test results of Beveron quartz stone show that the internal irradiation index is 0.02 and the external irradiation index is 0.03.

13, brightness: more than 60 degrees, detected by photometer.

14, appearance: clear but not turbid. Uniform color. Smoothness: within 3000 ㎜ 0.5 ㎜; Thickness: 12㎜ plate 0.5mm2,15mm2 plate 1 ㎜, 20mm2 plate1.5mm2.

15, specification: Beveron quartz stone meets the size of 3000㎜× 1400㎜. The thickness is 15㎜, 20㎜, 30㎜, and can be ordered for mass plate production 12㎜.

Other uses of quartz stone

Quartz stone has just started in China, so it is gradually popularized on the table first. Quartz stone has its own characteristics: clean (vacuum-made, dense and nonporous); It won't burn well. Can withstand the temperature of 300℃); No wear (30 polishing processes need no maintenance); Non-toxic and non-radiation (NSF certification, no heavy metals, direct contact with food); Colorful (can be customized according to customer needs). Therefore, it has been widely used in public buildings (hotels, restaurants, banks, hospitals, exhibitions, laboratories, etc.). ) and home decoration (kitchen countertops, washstands, kitchen walls, dining tables, coffee tables, window sills, door covers, etc.). ) abroad, it is an environmentally friendly and green new building interior decoration material without radioactive pollution.

In short, quartz stone has just entered the China market, and consumers still have a process of cognition and acceptance. We need to work together, patiently guide this vast market, make a big cake together and share it together. (

Interviewee: zlm 87985- Vice President 1 1 Grade 8-20 10: 12.