The equipment for producing extruded board (XPS) is the same as that for producing foamed board (EPS), but the production technology is different.
The raw material of extruded board (XPS) is polystyrene for EPS foam board, but the performance of XPS is far superior to foam board, so it will eventually replace foam insulation materials and perlite insulation materials. (1) Foam board (EPS board) Foam board (EPS board), also known as "polystyrene foam board", is a white object made of expandable polystyrene beads containing volatile liquid foaming agent, which is heated and preformed in a mold, and has the structural characteristics of fine closed cells.
Product features: 1. Low density, high recovery rate and independent bubble structure. 2, the surface water absorption is low, and the permeability resistance is good.
3, acid resistance, alkali resistance, salt, oil and other organic solvents corrosion, excellent aging resistance. 4. It does not flow at high temperature and does not crack at low temperature.
scope of application: it is mainly used for building wall insulation, roof insulation, composite board insulation, cold storage, air conditioning, vehicle and ship insulation, floor heating, decoration carving and other purposes. (2) Extruded board (XPS) Extruded board (XPS) is an extruded polystyrene thermal insulation board, which is a rigid foam plastic board made of polystyrene resin as raw material, other auxiliary materials and polymers, injected with catalyst through heating and mixing, and then extruded and molded. Its scientific name is extruded polystyrene foam for thermal insulation (XPS for short), and XPS has a perfect closed-cell honeycomb structure, which makes XPS board have extremely low water absorption (almost)
Product features: 1. Excellent thermal insulation; 2. Excellent high-strength compression resistance; 3. High-quality hydrophobicity and moisture resistance; 4. Lightweight and convenient to use; 5. Good stability and corrosion resistance; 6. Application scope of environmental protection performance of the product: building roof insulation, steel roof insulation, building wall insulation, building floor moisturizing, ground frost heave control, central air conditioning ventilation duct, etc. Extension: (3) Comparison of the differences between two kinds of EPS board external wall insulation systems and XPS board external wall insulation systems: the external wall insulation systems of thermal insulation board mainly include EPS board external wall insulation system and XPS board external wall insulation system. 1. Comparison of the performance of the two systems: The thermal insulation performance of EPS and XPS with the same thickness is gradually increasing.
EPS is .41 and XPS is .3. Therefore, under the condition 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 the 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 directly proportional to the thermal storage coefficient.
however, as far as the whole system is concerned, the heat storage of 2mm concrete is large enough, and the external insulation layer can fully meet the energy-saving requirements. This is also the reason why the national code requires the comprehensive thermal conductivity and thermal storage coefficient of the wall to meet the requirements at the same time.
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 the tensile strength. The tensile strength of EPS with a bulk density of 18Kg/m3 is 11 ~ 12 kPa, and that of 2 kg/m3 is about 14KPa.
the bulk density of XPS is normally from 25 kg to 45 kg, and the strength is from 15 kpa to 7 kpa or higher. (Provided that the thermal conductivity is about .3).
the strength of XPS board is 2KPa-25KPa, and that of XPS board of most domestic manufacturers is basically 1-2 kpa, and that of EPS board is below 1KPa. In the case of more and more rich facade decoration and frequent typhoons in coastal areas, the strength is very important, especially for some external wall tiles or high-rise buildings, both boards need to be reinforced or fixed with fasteners. The drawing of ceramic tiles is more than 4KPa, even XPS can't bear it. The solution is to anchor the steel wire mesh to the base by expanding bolts, which can disperse the tensile stress to the three-dimensional space. Therefore, as long as the anchorage is proper, the drawing failure must be in the anti-crack mortar layer of the composite steel wire mesh, which is not a big problem.
compared with EPS, XPS board has higher strength. However, compared with XPS, due to the brittleness of EPS board, when the adhesive area is large, the exterior wall facing layer is likely to crack, especially the paint surface layer. Flexibility is a matter of material quality. For plastering, perceptual knowledge usually applies plastering to polystyrene board, and then it depends on how far the polystyrene board is bent. If it is flexible, it will not crack after several turns.
similar to the ductility index in waterproof materials. But as far as the material itself is concerned, the flexible EPS is better than XPS.
3. Weather resistance: Weather resistance refers to the adaptability of the thermal insulation system to external weather changes, and refers to a series of quality-related problems such as the overall stability of the system and whether the thermal insulation effect has changed under different climatic conditions. Weather resistance is a very important index of thermal insulation system.
compared with XPS, EPS board has higher water absorption, so its weather resistance is not as good as XPS system. However, the ductility of EPS board is better than that of XPS board, which can overcome some defects.
However, as far as the system is concerned, the plastering glue on the outer layer of the thin plastering system itself has a certain waterproof ability. Except in the construction process, the waterproof performance of the intact two systems can be good.
The contact of rainwater on the external wall and the wall is vertical. As long as the surface mortar does not crack, there is no problem in waterproofing. In addition, wind pressure resistance is also an important item in weather resistance, because the more cavities there are in the system, the worse the wind pressure resistance is.
therefore, it is important to see the size of the bonding area between the whole thermal insulation system and the base. There is no problem in 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 impermeable. There are experiments to illustrate this point.
for example, in Shenzhen. Put a biscuit outside, you don't need to water it. In a day, the biscuit will soften because it absorbs water, and the water it absorbs is air water instead of liquid water.
in the thermal insulation system, no product dares to claim that its products are good in air permeability, heat conduction, water resistance and water absorption, and all of them are owned by a good company. Because these indicators are contradictory, but also pay attention to the permeability of the construction process after wet water. 2. Who knows the development history of brick machine?
In the 198s, 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 the output, some mechanical engineers have developed a honeycomb briquette machine which presses two bricks, three bricks or even four bricks at a time. Although it does not need pallets to make bricks, it is directly palletized, but it does not conform to the working principle of mechanical continuity, and the final development failed. For a long time, there has been no manufacturer that normally produces bricks with this equipment in China, which is a non-standard equipment.
in the 199s, on the basis of introducing 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 21st century, with the development of building materials machinery, block molding machines have blossomed, but the new wall material, hollow block, has not been known in rural areas of China, thus, the multifunctional brick (block) machine was born ... In 21, with the deepening of the national wall reform policy, the rapid development momentum of baking-free brick machines is like Ma Benteng, and manufacturers from all over the country have been involved in this new industry.
with the continuous improvement and in-depth transformation of technology. A 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 this system includes dosing machine, mixer, molding machine, lifting board system, sub-car system, mother car system, lowering board and palletizing system, etc. 1. dosing machine.
With computer control, according to the different raw materials selected, a menu of formulas can be input for automatic measurement, and then the materials are sent 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. Forming machine.
It is intelligently controlled by PLC computer, and adopts hydraulic transmission and vibration pressurization molding. Computer control can randomly adjust parameters according to the needs of producing different products and materials.
each action echoes and interlocks with each other, which is safe and stable. Random monitoring fault automatic prompt, man-machine dialogue.
According to the user's production requirements, we can choose different types and specifications of molds to produce various concrete wall blocks, perforated bricks, parking lot grass bricks, pavement bricks, water conservancy and hydraulic products, etc., thus realizing multi-purpose of one machine; 4. Lift plate system. Adopt mechanical synchronous transmission, the product is lifted smoothly, and the molded product is lifted to the 1-floor 5, sub and bus system under the control of PLC main computer.
It is controlled by the PLC main computer, and the same frequency converter is used to control the operation of the sub-car and the mother car at the same time, thus realizing the low-speed start and high-speed operation, and automatically slowing down, braking and stopping when it is in place, and the products are put into the curing kiln for curing, and at the same time, the cured products are transported to the lowering machine; 6. Plate lowering and palletizing system. The master and slave cars take the products out of the curing kiln and send them to the lowering machine, which palletizes them. The products are transported to the finished product yard by forklift, 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 Zhongji Machinery Manufacturing Co., Ltd.
The company was established in Qingpu, Shanghai in 1992.
in may 29, Mr. Hou Shuqi, the chairman of the company, and MR.Kurt Albrecht, the chairman of JOTECHNIK Maschinenbau GmbH, Germany, signed an agreement to jointly produce EPS machinery in Shanghai, and registered the JOZJ international trademark in Germany and China at the same time, upgraded the Sino-Kyrgyzstan EPS foam machinery in an all-round way and enjoyed the global sales and service network. 4.EPS semi-automatic foam molding machine technology
EPS semi-automatic foam molding machine
There are three basic models of this machine: (1) screw worm gear transmission, (2) screw bump wheel transmission and (3) hydraulic transmission.
1. This machine adopts imported PLC programmable computer and DOPA man-machine interface touch screen to realize the whole control system. This 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. By adopting various heating and foaming methods, the machine can be in the best condition without changing the workshop environment, so that the product can 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. After a little learning, everyone can operate 2-4 machines at the same time without training.
4. this 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 in Germany did the 5.EPS module first originate from
robert bosch Co., Ltd., a German Bosch company, 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 23, employees in more than 5 countries.
Bosch is famous for its innovative and cutting-edge products and system solutions. Bosch Group is the world's largest supplier of automotive technology, with sales of 3.8 billion euros in 29, including sales of 27.4 billion yuan in China.
Bosch has about 275, employees worldwide, including about 21,2 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 partnership between Bosch Group and China can be traced back to 199. Today, Bosch has established 11 wholly-owned companies, 9 joint ventures and several trading companies and representative offices in China.
Bosch is strongly supporting the strong growth of China automobile market. As early as 1895, Bosch Company obtained the permission of Stuttgart, the royal capital and official residence city, and began to produce household appliances under the guidance of Stuttgart Electric Factory.
At the Leipzig Spring Expo in 1933, Bosch's first refrigerator with a compressor was successfully unveiled, which surprised the refrigerator industry. Since then, Bosch has taken the first step to enter the home appliance market, and more Bosch home appliances have followed, gradually gaining a good reputation in the fields of stoves, dishwashers, washing machines and electric kitchen multipurpose machines. The 11-year history of home appliance manufacturing, consistent high-quality products and caring service commitment have made Bosch a leading position in the European home appliance market.
Bosch's history in China can be traced back to the beginning of this century. As early as 199 (only 23 years after Mr. robert bosch founded his first factory), Bosch products have entered the China market. In 1926, Bosch set up its first maintenance service station in Shanghai, and began to provide China consumers with high-quality Bosch products and high-level technical services. Unswervingly innovative spirit, fine and profound technology make Bosch enjoy wisdom and professional glory in the field of home appliances.
whether it is the first automatic washing machine in 196 or the first dishwasher in 1964, Bosch has always been "proud of European household appliances" with its reliable quality and leading technology. For more than 1 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 in 199 and its first automobile after-sales service workshop in Shanghai in 1926.
Today, all the business departments of the Group have settled in China: automotive technology, industrial technology, consumer goods and building intelligent technology. Bosch currently operates 37 companies in China and has Bosch (China) Investment Co., Ltd. in Shanghai.
in 27, Bosch's consolidated sales in China reached 1.8 billion euros. By 27, the total investment in China was about 1 billion euros.
from 28 to 21, Bosch plans to invest another 85 million euros.