PU +Rock Wool Sandwich Panel Line

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1:PU + rock wool color steel sandwich panel production line can produce sandwich panel with core of PU, rock wool and glass wool. The steel plate is for the surface material. The rock wool, glass wool is the core material and the high density of rigid foam polyurethane is for filling, tongue-and-groove sealing side after high pressure foaming solidified, automatic solid cotton cloth and controlled by the ultra-long precision double belt press. Its fire prevention effect is better than pure polyurethane sandwich panel, PU sealing side can be as a force of side structure and prevent the glass wool or rock wool in sandwich panel from easily falling and causing insulation failure problem. At the same time it can meet market demand for the fire prevention, waterproof, thermal insulation, bright and beautiful, long service life.

2:PU sandwich panel line is added a rock wool slitter, feeder, PU foaming device. Itcan produce PU,  rock wool and glass wool panel. There are several domestic existing PU production line manufacturers adding this device, such as Wuxi Warom door Industry Company original PU production line from South Korea,Xiamen Ou original PU production line from Italy.

3:Double belt continuous PU sandwich panel production line mainly includes hydraulic un-coiler, filming and cutting machine, roll forming machine, preheating device, double belt machine, foaming equipment, automatic cutting machine, finished product cooling system, a series of functions such as product packaging unit. Each equipment units are equipped with mechanical and electrical system, and the function of the different equipment unit are through a set of process data control system assembled together to form a complete set of continuous production line.

4:The machine can realize continuous production for PU sandwich panel, can use existing various kinds of foaming agent on foaming, can cut the panel by control of PLC and can change production speed by changing the VFD. The polyurethane curing process is in the middle of the continuous double track press machine and the length of time depends on the mixture type, plate thickness, production speed, etc.

5:This production line efficiency is high, the synchronicity of unit is good with high degree of automation and uniform density and foam honeycomb structure with the appropriate physical and mechanical properties. It is very suitable for mass production of PU sandwich panel and is the first choice to build high quality large buildings.

6:The production capacity is 3 to 7 m/min. It can produce composite core sandwich panel. The length specifications is 3-18 m (can be arbitrary cut), width: 900-1200mm, thickness: 20-150 - mm (corrugated height is not included), double belt machine effective length is 24 meters, the total power of 300 kw.







Main characteristics of Rock wool+PU sandwich panel line
1) Modified machine is used for continuous production of PU composite sandwich panels. The maximum length of the panel, can be more 6000 mm and thickness range 50-200 mm.
2) The Modified equipment is made up of two uncoiling machine, two roll forming machines, two cross knife, two sets of composite film mechanism, a multilayer press, a low-pressure reaction injection molding machine and the roller conveyor.

Usage of product:


Introduction of PU+rock wool sandwich panel:
The production process of PU+rock wool sandwich panel from Shanghai Zhongji is the most advanced invention, an invention that achieved automation in factories for PU+ rock wool steel composite production line,, so as to change the way that the rock wool plate needs to be composited on site. Dnder the premise of heat preservation and heat insulation, sound insulation, fire prevention requirements in building , it reaches the goal of high quality, high efficient, reliable, safe.Zhongji machinery for PU+rock wool panel line is widely used in Europe and the United States and southeast Asia, which has become a mature and perfect production process.

Usage of  PU+rock wool sandwich panel:
Zhongji PU+rock wool sandwich panel includes roof panels and wall sandwich panel. They can be widely applied in fire prevention, sound insulation, heat preservation requirements of industrial and civil architecture roofing, external wall and internal partition, especially applicable to the environmental humidity is big, fire demanding projects.

Structure of PU+rock wool sandwich panel:
1)Up and down surface: galvanized steel plate, thickness of 0.4-0.8 mm. According to the customer's specific needs, it also can use aluminium zinc color steel plate or aluminium coated steel sheet.
2)Core: Adopt 120 kg/m3 density rock wool block for interleaving laid. The fiber orientation perpendicular to the upper and lower surfaces of the sandwich panel, and closely connect with enriched the vertical and horizontal section of sandwich panel. Rock wool and upper and bottom plate are composited as whole by high strength adhesive polyurethane foaming agent so that the sandwich panel has good rigidity.



Characteristics of Rock wool+PU sandwich panel:
1)Sealing performance: PU+rock wool sandwich panel adopts production line process, which uses the excellent waterproof performance of polyurethane to overcome the deliquescence of easy bibulous drawback of rock wool and and extends the service life of the product on the physical properties.

2)Beautiful performance: The joint design is adopting European standards, with smooth, round shape, board face level off beautiful, seams, reliable strength. It can effectively prevent the formation of hot and cold bridge.

3)Good rigid: PU+rock wool+steel plate as a whole, plus the small ribs, has higher rigid performance than pure rock wool sandwich panel which is laminated onsite. When sandwich boardfixed with purlin, it will greatly improveg the overall stiffness of roof and work performance. Adopting rock wool sandwich panel can use bigger purlin distance to save purlin dosage of 1/3 to 2/3.

4)Reasonable joint methods: PU+rock wool sandwich panel adopts secret joint way and avoids change of lead water in the joint and saves the using of spare parts.

5)Firm and reasonable fixing method: The panel adopts special M6 tapping screw to fix with purlin. This way can effectively resist external force, such as a typhoon. Tapping screw is set in wave position between the two plate seam roof board, and uses special waterproof structure, which avoids to produce waterproof vulnerabilities.

6)Short installation period: Due to that there is no need for secondary processing on site, use of this panel not only can keep the environment clean and tidy, do not affect other processes, and also can greatly shorten the plate installation period and make average daily rock wool sandwich panel installation area to 600 ~ 800 m2

7)Protection of anti-scratch: In the production, PVC film can be coated to avoid the scratch while transpiration and installation.

Advantages of Rock wool+PU sandwich panel:
1) Good Fire performance: The Rock wool+PU sandwich panel raw materials, production technology and formula can make it with good fireproof performance. Tests show that it has the fire-resistant capacity of more than 1000 ?. The Rock wool+PU sandwich panel have passed the authoritative testing institutions in Italy GIOROANO S.P.A test, ISO, the United Kingdom and Germany BS standard, DIN rock wool sandwich panel to meet fire protection standard M.I. 14/09/61 letter no. 91 and d.m 30/11/83 requirements. The results are as follows: 50 mm thick The Rock wool+PU sandwich panel REI reached 30, 80 mm thick The Rock wool+PU sandwich panel REI 60 and 100 mm thick The Rock wool+PU sandwich panel REI. 120

2)Good insulation: The coefficient of thermal conductivity Rock wool+PU sandwich panel is regulated by the one of rock wool lambda = 0.043 W/m2 K as the basis, The real calculation is with the corresponding percentage of rock wool core material thickness.

3)Remarkable effect of sound insulation sound-absorbing: Rock wool+PU sandwich panel has significant reduction effect on noise transfer t. So it is especially suitable for a specified flights passing areas. In addition, by use of the rock wool roof board, the panel can reduce the noise that caused by corrosion of the rain, hail to the structure of the roof steel. From the test, in accordance with the ISO 717/82 and 8270/7 UNI standards and select the density of 120 kg/m3 rock wool sandwich board core material, the sound insulation effect of this panel can achieve RW = 29 ~ 30 dB

Rock wool sandwich panel also has excellent sound-absorbing effect. It can absorb a wider frequency range sound.According to ISO 354/85 standard, rock wool sandwich panel sound-absorbing performance level can reach DELTA LA = 15.7 dB (A).

Rock wool+PU sandwich panel performs well for the rock wool core special performance so that it has good functions for the fire prevention, heat preservation and heat insulation, sound-absorbing, sound insulation, etc. At the same time it retains the PU advantage of flexibility, good seal, high strength and non bibulous performance. The creation of this material is a revolutionary change in construction engineering, making good integration of the advantages of polyurethane and rock wool, regarding the disadvantages of the traditional panel. In a sense, PU+ rock wool sandwich panel cannot be easily compared with ordinary rock wool sandwich panel.

PU sandwich panel:



Usage of PU sandwich panel:


Profile of PU sandwich panel:



1. Performance of PU inculcation panel
1)Low heat conductivity coefficient and good thermal performance. When the density of rigid foam is 35~40kg/m3, the heat conductivity coefficient is just0.018~0.024w/(m.k), which is about half of the one of EPS and is the lowest in all of the insulation material.

2)Rigid PU has performance of moisture-proof and waterproof . The obdurate rate  of Rigid polyurethane is above 90%. It is the hydrophobic material. Its heat conductivity coefficient will not be increased because of moisture. And the wall will not have water leak.

3)Rigid PU is fire, flame retardant and resist to high temperature. After adding flame retardant agent, PU is a kind of flame retardant, self-extinguishing material.  With its softening point can reach more than 250 degrees Celsius, PU will appear only in high temperature decomposition: in addition, when burning, on surface of  polyurethane foam carbon deposition will be formed, the carbon deposition will isolate the other PU, which can effectively prevent the fire spreading. Moreover, polyurethane also does not produce harmful gases at high temperature.

4)Due to the PU board with excellent insulation properties, under the same heat preservation requirements, it can reduce the thickness of the building outside protection, thus increasing indoor usable floor area.

5)Strong anti deformation ability, not easy cracking, stable and safe decorative surface.

6)The porosity structure of PU is stable with mostly closed pore structure, which makes it not only with good heat preservation performance, but also with freeze resistance, sound absorption. The average life of polyurethane insulation structure can reach more than 30 years under the condition of normal use and maintenance.

7)Although the rigid polyurethane foam material unit price is higher than other traditional insulation material unit price, but the cost of the increase will be offset by the reduction of heating and cooling costs and.

2. Usage of PU insulation panel
ZJM rigid PU insulation panel can be widely used in colored steel sandwich board, building wall materials, cold storage and other areas of the building

3. Features of PU insulation panel
A More Specifications variety, density range (40-60 kg/m3); Length: 0.5 m-4 m); Width: 0.5 m - 1.2 m);Thickness: (20 mm - 200 mm).
B High cutting precision with 0.5 mm thickness error, so as to ensure the smoothness of the finished surface.
C. Even foam with even holes
D. Light density can reduce the weight of finished product so as to be 30-60% lighter than the traditional product.
E. High Compressive strength can make it withstand the pressure in the process of manufacturing the finished product.
F. Convenience of quality inspection-- because during the process of cutting off the skin all round, the quality of the plate can be at a glance, which will ensure that the insulation effect of final products. Thickness of panel can be adjusted according to user requirements

Product profile and performance
1 Roof panel
1)Secret joint panel
A.Hidden screw, good waterproof effect. It can prevent rusting of the screw and avoid the happening of the cold bridge phenomenon at the same time.
B.Wave height of 40 mm. This design can improve the bearing capacity of the roof panel, reduce the use amount of the roofing purlin and enhance the capacity of load.

2) Lap joint type sandwich panel
A. Joint part adopts the fold edge processing, which can lap more closely and avoid side corrosion because of no coating, prolong the service life of the plate and increase the intensity.
B. Three waves design with 34mm wave height can improve the bearing capacity of roof plate, reduce the volume of the roofing purlin, increase the load capacity and hold concurrently balance for running water.
C. Water drain design can prevent the water seepage phenomenon.

2 Wall panel
1)Tongue & Groove wall panel(Bolt out type)
A.Five surface ladder form socket, socket tightly
B.Improve the steel utilization. More economical.

2)Secret wall panel( Boltless type)
A.Adopt hidden screw for connection can plug tightly
B.Screws are hidden under plate to prevent the corrosion and ensure the overall aesthetic effect.
C.Reasonable connection with mechanical design and mechanical equilibrium make it with stronger ability to resist the negative air pressure .

3 Cold room panel
A.The adoption of unique convex groove structure can improve the plank socket closure
B.Panel is uniform and even with good insulation performance and good waterproof performance.

Parameters:
Specifications of PU+rock wool sandwich panel
1)Width=1000mm, Length<160000mm Adjustable.
2)Thickness:50mm?75mm?100mm