High-heat preserving high-sound insulation high-strength seamless ultra-hollow wall board and technique thereof

Abstract

The invention relates to a beamless and super-hollow wall board with high heat preservation, noise insulation and strength and a manufacturing technique thereof, belonging to the field of light building walls, which is characterized in that: the invention comprises an internal structure and an external structure of the board; the internal structure of the board consists of a surface layer (5) of the wall board, an inner layer (6) of the wall board, and a super-hollow air cylinder with high density or a vacuum air cylinder (4); the external structure of the board consists of a convex spindle (7) and a groove (2) locked with each other through a barb, lockstitch parts (1) and (10) with shallow slots that are further provided with transverse trenches, and a longitudinal threading hole (8), etc. The beamless and super-hollow wall board with high heat preservation, noise insulation and strength, in particular the super-hollow structure, is scientifically designed, thus has the advantages of lighter weight, more excellent performance in heat preservation, heat insulation and noise insulation, better wind and shock resistant loading, lower cost, remarkable effects of environment protection and energy saving, and is suitable for mechanized production and large-scale production.

Description

technical field [0001] The invention belongs to the field of lightweight building walls, in particular to a prefabricated super-hollow wallboard with high thermal insulation, high sound insulation and high strength. technical background [0002] There are many disadvantages in existing various types of wallboards: [0003] 1) Cement hollow slabs are used for partition walls, although they save labor and materials compared with brick walls, but they are easy to crack after drying, easy to be damp, and the wall skin is easy to fall off after absorbing water. Thick beams and columns waste steel and cement, can only be used for interior walls, and are not easy to install. [0004] 2) The magnesia cement board or magnesia board, on the one hand, is filled with light aggregates such as straw powder, rice husk powder, saw foam, and fly ash in order to reduce costs and enhance thermal insulation and sound insulation effects. Adding less will not work, adding too much will not only...

AI Technical Summary

Problems solved by technology

Adding less will not work, adding too much will not only reduce the strength, but also easily absorb water, expand, dry and shrink, and crack easily. At the same time, the fire resistance is poor, and the thermal insulation and sound insulation effects are not ideal.

[0005] 3) Some use interlayer benzene board to improve the effect of heat preservation and sound insulation, but the result is that the strength is too poor and the cost is high

At the same time, the fire resistance and strength are poor, and the cost is high. It can only be used in factories, warehouses, prefabricated houses, etc., and is not suitable for important buildings such as high-rise and low-rise residences.

Even sandwich benzene panels such as magnesite are unsafe and environmentally friendly wall panels

[0006] 4) Some use hollow-filled insulation materials such as perlite and vermiculite to improve the thermal insulation and sound insulation effect, but the cost is high, and the thermal insulation and sound insulation effect is still difficult to achieve the ideal level

[0007] 5) Some foams have a better thermal insulation effect, but the cost of expanding steam foaming or high-temperature cracking of waste polystyrene PS is also very high; at the same time, the structural density and strength of the inner and outer materials of the wallboard are the same, while the density and strength of the surface layer are obvious. Insufficient, the density and strength of the cavity are insufficient, causing waste or increasing costs

[0008] 6) A hollow environment-friendly composite light-weight wallboard. The metal mesh used for the outer layer of the partition wall board is also costly, and the inner layer uses flax scraps instead of glass cloth, which not only has limited strength, but also has more limited raw materials, and the double-layer dislocation process is complicated. , the construction period is long, and at the same time, because the double layer must be cured before making the second layer, its strength is greatly reduced

[0009] 7) There are also some straw boards, straw powder boards, etc., which can only relatively improve the thermal insulation and sound insulation effect, and their fire resistance and strength are very poor, which is not convenient for general application.

This can only be imagined based on the principle of vacuum packaging, which is difficult to produce in a factory.

[0012] (1) In the process of transporting the semi-finished cover plate and the main body of the honeycomb wallboard into the vacuum device, it is difficult to achieve the sealing conditions required by the vacuum device no matter whether it is hoisted, trucked, or rolled on the production line, so the vacuum can only be one This assumption is untenable

[0013] (2) The main body of the wallboard with the honeycomb bonded to the two cover boards needs to be synthesized in two separate steps. At the same time, the second bonding is not a one-time synthesis. The bonding force is very poor and the strength is greatly reduced, which does not meet the relevant national standards.

[0014] (3) The fiber content of straw is relatively high, accounting for 60%. In addition, the porosity of cement is greater than that of water molecules. Poor fire prevention, high final synthesis cost

[0016] 10) At the same time, the existing wall panels can only be used for interior wall partitions, and cannot be used for exterior walls except for Ward exterior wall panels.

In a word, the various technical indexes of the existing wall panels actually cannot or partly fail to reach the relevant national standards, which is quite different from the present invention.

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