The raw material of extruded board (XPS) is polystyrene used for EPS foam board, but the performance of XPS is far superior to foam board, so it will eventually replace foam insulation material and perlite insulation material. (1) Foam board (EPS board) Foam board (EPS board), also known as "polystyrene foam board", is a white object formed by heating expandable polystyrene beads containing volatile liquid foaming agent in a mold, which has the structural characteristics of fine closed holes.
Product features: 1, low density, high recovery rate, independent bubble structure. 2, the surface water absorption is low and the impermeability is good.
3, acid resistance, alkali resistance, salt resistance, oil and other organic solvents corrosion, excellent aging resistance. 4. No flow at high temperature and no cracking at low temperature.
Scope of application: mainly used for building wall, roof insulation, composite board insulation, cold storage, air conditioning, vehicle and boat insulation, floor heating, decoration and carving, etc. (2) Extruded board (XPS) Extruded board (XPS) is a kind of extruded polystyrene insulation board, which is a rigid foam plastic board made of polystyrene resin as raw material, supplemented by other auxiliary materials and polymers, heated and mixed, injected with catalyst, and then extruded. Its scientific name is extruded polystyrene foam for thermal insulation (XPS). XPS has a perfect closed-cell honeycomb structure, which makes the water absorption of XPS board extremely low (almost).
Product features: 1, excellent thermal insulation performance 2, excellent high-strength compressive performance 3, excellent hydrophobicity and moisture-proof performance 4, light weight, convenient use 5, good stability and corrosion resistance 6, product environmental protection performance application scope: building roof insulation, steel roof insulation, building wall insulation, building floor moisturizing, square floor, ground frost heave control, central air conditioning ventilation pipes, etc. Extension: (3) Comparison between two kinds of EPS board external wall insulation system and XPS board external wall insulation system: The insulation board external wall insulation system mainly includes EPS board external wall insulation system and XPS board external wall insulation system. The performance comparison of the two systems is 1. Thermal insulation performance: the thermal insulation performance of EPS and XPS with the same thickness is gradually improved.
EPS is 0.04 1 and XPS is 0.030. Therefore, in the case of achieving the same thermal insulation effect, XPS board is thinner than EPS board, but the price of pure board is more expensive than EPS board.
If technology and building height are considered comprehensively, XPS is more expensive than EPS per square meter. For thermal insulation, the thermal inertia index D is mainly considered, and the value of D is proportional to the thermal storage coefficient.
But as far as the whole system is concerned, the heat storage of 200mm concrete is large enough, and the external insulation layer can completely meet the energy-saving requirements. This is also the reason why the comprehensive thermal conductivity and thermal storage coefficient of the wall meet the requirements at the same time according to the national code.
EPS or XPS thin plastering system fully meets the requirements. 2. Strength: The strength mentioned here should be tensile strength. The bulk density of polystyrene board is absolutely related to its tensile strength. The tensile strength of EPS with bulk density of 18Kg/m3 is110 ~120kpa, and the bulk density of 20kg/m3 is about 140KPa.
XPS usually has a bulk density of 25 kg to 45 kg and a strength of 150 kPa to 700 kPa or higher. (provided that the thermal conductivity is around 0.03).
The strength of XPS board ranges from 200 kPa to 250 kPa, and XPS board of most domestic manufacturers is basically 100 ~ 200 kPa, and EPS board is below 100 kPa. In coastal areas, the facade decoration is more and more abundant and typhoons are frequent, so the strength is very important, especially for some external wall tiles or high-rise buildings. Both boards need to be reinforced or fixed with fixing pieces. The wire drawing of ceramic tiles exceeds 400KPa, which even XPS can't bear. The solution is to anchor the steel wire mesh on the base with expansion bolts, so that the tensile stress can be dispersed to three-dimensional space. Therefore, as long as the anchorage is proper, the drawing failure must be in the crack-resistant mortar layer of composite steel wire mesh, and the problem is not big.
Compared with EPS, XPS board has higher strength. However, compared with XPS, due to the brittleness of EPS board, the decorative layer of external wall, especially the paint surface layer, is more likely to crack under the condition of large bonding area. Flexibility is a matter of material quality. For plastering, perceptual knowledge is usually to apply plastering to polystyrene board, and then it depends on how much polystyrene board is bent. If it is elastic, it won't crack after several turns.
Similar to the ductility index in waterproof materials. But as far as the material itself is concerned, flexible EPS is better than XPS.
3. Weathering resistance: Weathering resistance refers to the adaptability of the insulation system to external weather changes, and refers to a series of quality-related problems such as whether the overall stability and insulation effect of the system have changed under different climatic conditions. Weather resistance is a very important index of thermal insulation system.
Because the water absorption of EPS board is higher than that of XPS, the weather resistance is not as good as that of XPS system. However, the ductility of EPS board is better than that of XPS board, which can overcome some defects.
But as far as the system is concerned, the gypsum on the outer layer of the thin plastering system itself has certain waterproof ability. Except in the construction process, the waterproof performance of the complete two systems can be very good.
The contact between rainwater and external walls and walls is vertical. As long as the surface mortar does not crack, there is no problem in waterproofing. In addition, the wind pressure resistance is also an important item in weather resistance, because the more cavities in the system, the worse the wind pressure resistance.
So the key depends on the size of the bonding area between the whole insulation system and the base. There is nothing wrong with XPS system and EPS system.
4. Breathability: Breathability and water absorption are two problems! The size of air molecules and water molecules is very different! Of course, there is a saying that it is breathable and airtight. There are experiments to illustrate this point.
For example, in Shenzhen. Put a biscuit outside, there is no need to water it. Within a day, cookies will become soft because of water absorption, and the water it absorbs is air water instead of liquid water.
In the insulation system, no product dares to claim that its products have good air permeability, good heat conduction, good water resistance and good water absorption, and they are all good people's. Because these indexes are contradictory, we should also pay attention to the permeability after wet water in the construction process.
2. The history of brick machine development Who knows that in the 1980s, China took the lead in developing an extruded eight-hole brick machine, which pioneered the baking-free brick machine; However, its disc can only press one brick at a time, and its output is low, which can not meet the output requirements of ordinary brick and tile factories.
In order to increase output, some mechanical engineers have developed a honeycomb briquette machine, which can press two bricks, three bricks or even four bricks at a time. Although brick is made without pallet and palletized directly, it does not conform to the working principle of mechanical continuity, and the final development failed. For a long time, there has been no factory in China to produce bricks normally with this equipment, which belongs to non-standard equipment.
In 1990s, based on the introduction of foreign wall machinery, China developed a hollow block forming machine, which laid the foundation for the development of new wall machinery in China. In the 2 1 century, with the development of building materials machinery, block molding machines have blossomed everywhere, but the new wall material hollow block is unknown in rural areas of China, so the multifunctional brick (block) machine was born ... 20 10 With the deepening of the national wall reform policy, Malik Pentium developed rapidly, and manufacturers all over the country set foot in this new industry.
With the continuous improvement and in-depth change of technology. The new automatic maintenance production line has been produced, which is the most automatic baking-free brick production system in China at present.
The main equipment of the system includes dosing machine, mixer, molding machine, lifting plate system, car separation system, mother car system, lowering plate palletizing system and so on. 1, dosing machine.
Using computer control, according to the choice of different raw materials, you can enter a recipe menu for automatic measurement, and then send the materials to the mixer; 2. Mixer. It is suitable for forced mixing and stirring of various concrete products, and the stirred materials are sent to the molding machine by the conveyor; 3. molding machine.
Intelligent control by PLC computer, hydraulic transmission, vibration and pressure molding. Computer control can randomly adjust parameters according to the needs of producing different products and materials.
All actions echo each other and are linked with each other, which is safe and stable. Random monitoring fault automatic prompt, man-machine dialogue.
According to the production requirements of users, we can choose different types and specifications of molds to produce various concrete wall blocks, perforated bricks, parking lot grass bricks, pavement bricks and water conservancy and hydraulic products. , to achieve a multi-purpose; 4. Lift plate system. Adopting mechanical synchronous transmission, the products are smoothly upgraded, and the molded products are upgraded to 10 layer 5, sub and bus system under the control of PLC main computer.
Controlled by the PLC host computer, the same frequency converter is used to control the operation of the sub-car and the mother car at the same time, thus realizing low-speed start and high-speed operation, automatically slowing down, braking and stopping after reaching the designated position, putting the product into the curing kiln for curing, and conveying the cured product to the unloader in another curing kiln at the same time; 6. Plate lowering and palletizing system. The master car and slave car take the products out of the curing kiln and send them to the lowering machine, which palletizes the products. The products are transported by forklift to the finished product yard, and the whole line can be controlled manually, semi-automatically and fully automatically, realizing a fully automatic production line integrating machinery, electricity and liquid.
3. The growth course of Shanghai CMC Machinery Manufacturing Co., Ltd. 1992 Company was established in Qingpu, Shanghai.
In May 2009, Mr. Hou, the chairman of the company, signed an agreement with Mr. Kurt Albrecht, the chairman of JOTECHNIK Maschinenbau GmbH, Germany, to jointly produce EPS machinery in Shanghai. At the same time, they registered and used JOZJ international trademark in Germany and China, upgraded China-based EPS foaming machinery in an all-round way, and enjoyed a global sales and service network.
4.EPS semi-automatic foam forming machine technology EPS semi-automatic foam forming machine
This model has three basic models: (1) lead screw worm gear drive (2) lead screw bump wheel drive (3) hydraulic drive.
1. This machine adopts imported PLC programmable computer and DOPA man-machine interface touch screen to realize the whole control system. The machine has complete functions and convenient parameter adjustment. Automatic control of mold closing, feeding, foaming, mold opening and degassing can also realize product control in computer production.
2. Adopt various heating and foaming methods to make the machine in the best condition without changing the workshop environment, and make the products reach the quality of automatic vacuum forming machine.
3. Compact structure, space saving, reliable performance, convenient maintenance, labor saving, steam saving and raw material saving. With a little study, everyone can operate 2-4 machines simultaneously without training.
4. The machine adopts imported hydraulic transmission system, which increases the clamping force, improves the clamping speed, shortens the molding cycle and saves energy.
5. Which company did it? EPS module originated in Germany? German Bosch Company Robert Bosch Co., Ltd. is one of the largest industrial enterprises in Germany, engaged in automobile technology, industrial technology, consumer goods and construction technology.
When Mr. robert bosch founded the company in Stuttgart in 1886, he positioned the company as a "factory of precision machinery and electrical engineering". Headquartered in southern Germany, Bosch has more than 230,000 employees in more than 50 countries.
Bosch is famous for its innovative and cutting-edge products and system solutions. Bosch Group is the largest supplier of automotive technology in the world, with sales of 38 [1] 200 million euros in 2009, of which sales in China reached 27.4 billion yuan.
Bosch has about 275,000 employees worldwide, including about 265,438+0,200 employees in China. Bosch's automobile technology is entering China in a big way, thus devoting itself to the rapidly developing automobile industry in China.
The business cooperation between Bosch Group and China can be traced back to 1909. Today, Bosch has established 1 1 wholly-owned companies, 9 joint ventures, several trading companies and representative offices in China.
Bosch strongly supports the strong growth of China automobile market. As early as 1895, Bosch Company obtained the permission from Stuttgart, the royal capital and official residence city, and began to produce household appliances under the guidance of Stuttgart Electric Appliance Factory.
1933 At the Leipzig Spring Expo, Bosch successfully unveiled the first refrigerator with a compressor, which surprised the refrigerator industry. Since then, Bosch has taken the first step to enter the home appliance market, followed by more Bosch home appliances, and gradually gained a good reputation in the fields of cookers, dishwashers, washing machines, electric kitchen multipurpose machines and so on. With 1 10 years of history, high-quality products and caring service commitment, Bosch has always been in a leading position in the European household appliance market.
Bosch's history in China can be traced back to the beginning of this century. As early as 1909 (that is, only 23 years after Mr. robert bosch founded the first factory), Bosch products have entered the China market. 1926, Bosch set up its first maintenance service station in Shanghai, and began to provide high-quality Bosch products and high-level technical services to China consumers. Unswervingly innovative spirit and sophisticated technology make Bosch enjoy wisdom and professional glory in the field of home appliances.
Whether it is 1960' s first automatic washing machine or 1964' s first dishwasher, Bosch has always been "proud of European household appliances" with reliable quality and leading technology. /kloc-for more than 0/00 years, Bosch has been tirelessly pursuing an important goal-using perfect technology and perceptible quality to continuously improve the quality of life of mass consumers.
Today, Bosch has become the leading brand with the largest market share in European household appliances. Bosch Group opened its first trade office in China on 1909, and established its first after-sales service workshop in Shanghai on 1926.
Today, all business departments of the Group have settled in China: automotive technology, industrial technology, consumer goods and intelligent building technology. Bosch currently operates 37 companies in China and has Bosch (China) Investment Co., Ltd. in Shanghai.
In 2007, Bosch's consolidated sales in China reached 654.38+0.8 billion euros. By 2007, the total investment in China was about 654.38 billion euros.
From 2008 to 20 10, Bosch plans to invest another 850 million euros. About 65,438+07,000 employees in China are dedicated to providing customers in China with the most advanced technology and the most reliable service to improve people's quality of life.
Since 1980s, Bosch has set up 65,438+00 representative offices, 5 trading companies and/kloc-0 trading offices, 9 wholly-owned enterprises and 9 joint ventures in China, all led by Bosch (China) Investment Co., Ltd. ... The total investment of Bosch Group in China has exceeded 970 million US dollars.
Bosch China's Bosch Trading (Shanghai) Co., Ltd., Bosch Auto Parts (Suzhou) Co., Ltd., Bosch Automotive Diesel System Co., Ltd., Nanjing Huade Spark Plug Co., Ltd. and United Automotive Electronics Co., Ltd. all occupy leading positions in their respective fields. In 2004, regardless of exchange rate changes, the sales of all Bosch enterprises in China (including exports) increased to 654.38+0.4 billion euros, a year-on-year increase of 25%.
The sales of automotive technology department exceeded half of Bosch's total revenue in China, which played a decisive role in Bosch's outstanding achievements. Bosch has been committed to providing economical, clean and safe technologies and products for the rapidly developing China market.
Bosch's new headquarters building in China In addition, in 20 10, Bosch's global sales reached more than 47 billion euros, about 420 billion yuan, an increase of 24% compared with 2009, making it the best year in Bosch's history. Among them, in 20 10, the total sales of Bosch Asia Pacific exceeded 10 billion euros for the first time, accounting for 23% of the global performance.
The development of China is particularly remarkable, with total sales exceeding 37 billion RMB, up 36% year-on-year. China has become Bosch's third largest market in the world after Germany and the United States.
2065438+01On April 20th, Shanghai-Bosch Group, the world's leading technology and service provider, announced the official completion and opening of its new China headquarters building in Shanghai Hongqiao Airport Economic Park. With a total investment of 980 million yuan, the building is the largest regional headquarters of Bosch Group in the Asia-Pacific region, laying another solid foundation for the sustainable development of Bosch's business in China.
Bosch (China) Investment Co., Ltd. was established in 1999, and is responsible for managing, developing and coordinating all investment and production businesses of Bosch in China. Its ten representative offices, four trading companies and one trading representative office, seven wholly-owned enterprises and ten joint ventures are widely involved in many fields, such as automobile parts, packaging technology, control and transmission system, thermal energy technology, white goods and safety system, and are dedicated to providing the best quality products to customers in China.
Headquartered in Shanghai, Bosch (China) Investment Co., Ltd. has branches and offices in Beijing, Wuhan and Chongqing, which is mainly responsible for the development and coordination of all Bosch investment projects in Chinese mainland. The investment company is committed to establishing win-win partnership with customers in China, strengthening business cooperation and assisting Bosch to achieve good business development in China market.
In addition, its purchasing department is also responsible for and coordinates Bosch's purchasing business in Asia (except Japan). Bosch household appliances in June 2004 +065438+ 10, Bosch household appliances were successfully listed in Shanghai, and now they have been stationed in Beijing and Shanghai.
6.EPC 1958 Development History H.F.shroyer of the United States invented the patented technology of manufacturing metal castings with expandable foam patterns and obtained a patent (patent number USP2830343). At first, the model used was made of polystyrene (EPS) board, and clay sand was used to produce artistic castings. The foam pattern formed by this method does not need to be taken out, but after pouring liquid metal, polystyrene molecules crack at high temperature to fill the space with liquid metal and solidify to form castings. 196 1 year, German companies Grunzweig and Harrtmann purchased this patented technology and developed it. 1962 was applied in industry. The technology of producing castings with binder-free dry sand was patented by H.Nellen of Germany and T.R.Smith of the United States in 1964.
1967 A.Wittemoser of Germany used magnetized iron balls instead of silica sand as molding materials and magnetic fields as binders. This is called magnetic mold casting. 197 1 year, Nagano, Japan invented the v method (vacuum casting method), and vacuum pumping was also used to fix the molding sand in EPC in many places. The use of binder-free dry sand process before 1980 must be approved by Full Mold Process, Inc., after which the patent will become invalid. Lost foam casting technology has developed rapidly in the world.
1990, GM established a new foundry with an annual output of 55,000 tons in Saturn, with three fully automatic EPC production lines.
199 1 year, Fiat Italy built the largest EPC workshop in Europe in Turin, with an annual output of10.5 million tons.
1993, BMW Germany built an EPC production line with an annual output of 200,000 aluminum alloy cylinder heads of various specifications.
In 200 1 year, the American general company SMCO built the most advanced and largest EPC workshop in the world.
domestic situation
In recent years, general contracting has developed rapidly in China, and the development results are also gratifying. Among them, Yunnan Kunming Hongjinlong Foundry Machinery Factory is relatively advanced in all aspects, and its products have been exported to neighboring countries such as Malaysia. In addition, universities such as Tsinghua University and Huazhong University of Science and Technology have also made valuable contributions to the development of EPC industry. The level of R&D and manufacturing equipment is mainly reflected in the following aspects:
(1) equipment development in white area: the preforming machine has been greatly improved and improved, and a lot of work has been done in the design of external structure, the improvement of foaming principle and the perfection of testing means. The performance of foaming machine has been greatly improved, which can basically meet the requirements of use. The molding machine has also been improved. With the improvement of automation level and its application in domestic mold manufacturing, the automation level of domestic mold manufacturing machine has also been obviously improved, and the production efficiency of mold manufacturing and the labor intensity of workers have been greatly improved and improved. However, the energy distribution of filling method needs to be further improved and perfected. Some work has also been done on the gluing machine, but the gluing level and ability of complex molds need to be improved. The mechanization level of coatings is low, the detection methods are not perfect, and the dirty, chaotic and poor situation of coatings department has not been obviously improved; Lack of paint recycling equipment and devices. At present, some domestic enterprises use stainless steel high-speed and low-speed mixing containers with Kawasaki manipulator to paint complex molds. However, due to their ignorance of the coating performance, they failed to design a reasonable and accurate fixture, and because of the unreasonable trajectory of the manipulator, when the manipulator invades the mold itself, the mold will expand and deform, the surface coating will be unevenly attached, and the cavity will be seriously exposed.
(2) Development of equipment in black area: The vibroflotation platform has been greatly improved and broken through, both the principle and control means of vibroflotation have been significantly improved, which is basically close to the design concept of foreign advanced equipment, but there is still a certain gap in details and control. The design and manufacturing capacity of sand cooler has also been greatly improved, and the sand cooling treatment requirements of molding line can be met without considering too many pits. The design and manufacturing capabilities of rain and sand, vibration transportation and other equipment have been significantly improved. The design and realization ability of automation has been greatly improved. The design and manufacturing level of automatic pouring machine is close to the advanced level abroad. The design concept of the whole molding line has changed greatly, and the wiring is more reasonable and the operation is more reliable.
(3) Development of process level: the process level is mainly reflected in the batch production process of engine cylinder block and cylinder head castings and the production process of difficult wear-resistant and heat-resistant castings.
7. What equipment do you need to open a polystyrene foam box and foam board factory? After more than ten years' development, Longxue Group takes the field of EPS foam as the development center, takes independent innovation as the development motive force, accelerates its expansion, and provides the society and customers with EPS foam products with high added value, high technology and low energy consumption. Longxue Group has developed into an EPS foam board product. An enterprise group integrating EPS foam packaging products, EPS foam mechanical products, color steel sandwich panels and steel structures. Longxue enterprise not only provides high-tech products for customers who have developed in EPS foam field, but also puts forward the concept of one-stop conceptual service, also known as turnkey project, which allows you to get one-stop intimate and worry-free development service in Longxue Group.
Xuelong's one-stop concept service today can provide foam machinery users with:
1.Overall design of EPS foam products factory: including the overall layout of EPS foam products factory, production process design of EPS foam products, equipment layout, pipeline laying and a series of system design schemes.
2. High-tech EPS foaming machinery supporting equipment: including EPS foaming plate production machinery series; EPS foam packaging production machinery series; Color steel sandwich board equipment series, 3D board and Shule board production equipment series; ICF system production equipment series, etc.
3.3 Installation and debugging. EPS foam machinery and equipment.
4. Training and guidance: provide professional technical training and guidance services with the characteristics of Longxue enterprise for EPS foam products production enterprises, and provide professional training for production operators. You can also let the operating technicians designated by EPS foam products manufacturers go to Longxue Enterprise's EPS foam products factory for on-the-spot study and employment. So that you no longer have to worry that your technicians are not in place.
5. Longxue Group provides 365 worry-free after-sales service. You can enjoy Longxue's all-round after-sales service concept all day.
6. Longxue Group provides you with services such as operation technical support and management mode consultation with Longxue characteristics.
Longxue Group believes that with Longxue Group's more professional EPS foam machinery products and Longxue Group's characteristic service concept, you will certainly develop and grow in the field of EPS foam and achieve fruitful results in the competition of EPS foam industry.
The quality of snow dragon is rock solid. Xuelong is willing to create a better tomorrow with you.
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