CN101775850B - Manufacture method of core material of vacuum heat insulation plate - Google Patents

Abstract

The invention provides a manufacture method of a core material of a vacuum heat insulation plate through aiming at the problem of high cost of the core material of the vacuum heat insulation plate in the prior art. The method comprises the following steps: rock wool fiber pulping and net covering; shaping and rolling; vacuum dehumidifying; and cooling and material forming. The invention adopts the rock wool fiber, and the produced core material of the vacuum heat insulation plate can satisfy performance required by the core material of the vacuum heat insulation plate , and also has the obvious advantages of fire resistance, sound absorption and the like. More importantly, the production process is simple, and the invention can meet the requirement of fast mass production of building industry.

Description

Manufacture method of core material of vacuum heat insulation plate

Technical field

The present invention relates to a kind of constructional materials preparation method, be specifically related to the used for building exterior wall manufacture method of core material of vacuum heat insulation plate.

Background technology

The core material of vacuum heat-insulating plate is generally selected porous media material, as powdered silica, aeroge, rock wool fibers or microvoid polyurethane, core has the support structure effect, prevent that vacuum heat-insulating plate shrinks under vacuum condition, it is flat to collapse, prevent thermal-radiating generation besides, the heat conducting generation of its three minimizing is because this is as porous material, contact area is little, can effectively reduce the heat radiation that conduction of heat takes place.The prerequisite characteristic of core is an open-celled structure, so that gas is found time, the arrangement of micropore simultaneously should make the structure contact point in the material few as far as possible, to reduce the solid thermal conduction.

At present European countries' building trade selects core mostly to be aerosil greatly with vacuum heat-insulating plate, and this material satisfies above-mentioned all characteristic requirements, yet that shortcoming is a price is more expensive, and cost is higher.

Summary of the invention

The present invention is directed to the high problem of cost that the prior art core material of vacuum heat insulation plate exists, a kind of manufacture method of core material of vacuum heat insulation plate is provided.

For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:

A kind of manufacture method of core material of vacuum heat insulation plate comprises the steps:

A, with rock wool fibers making beating online;

B, shaping roll extrusion;

C, vacuum dehumidifying;

D, cooling are become a useful person;

Described A step comprises the steps:

A1, to choose diameter be that 3-10 μ m, water content are that 1-20%, size are the rock wool fibers of 0.2-5%;

Pour in the slurry can after A2, Jia Shui stir, be delivered to head box then, being diluted to concentration is 0.5-1.2%;

A3, send into flow box, knit forming net, THICKNESS CONTROL is surfed the Net behind 1-25mm;

Further, comprise the steps: in the C step of the present invention

C1, under vacuum condition, take out part water, make sheet material slurries water content be controlled at 10-60%;

C2, send into the drying in oven moulding, temperature is controlled at 250-500 ℃ in the baking oven, and drying time is controlled at 6-10min.

Further, comprise the steps: in the D step of the present invention

D1, be cooled to normal temperature;

D2, cut periphery on request, make the standard core.

The percentage composition that relates among the present invention is all counted by weight percentage.

Compared with prior art, advantage of the present invention and good effect are: owing to adopt rock wool fibers, rock wool fibers in the core is to have open-celled structure, so that gas is found time, can satisfy the performance that all needs of core material of vacuum heat insulation plate possess, the arrangement of micropore simultaneously makes the structure contact point in the material less, thereby reduce the solid thermal conduction, remarkable advantages such as that rock wool fibers also has is fire-retardant, sound-absorbing, the more important thing is that its production technology is simple, the existing core of price reduces by more than 50, and can satisfy the quick requirement of mass production of building trade.

The specific embodiment

The present invention is further detailed explanation below in conjunction with accompanying drawing.

Embodiment one, and the present embodiment core material of vacuum heat insulation plate is made and comprised the steps:

A, choose that diameter is that 3-5 μ m, water content are 8.0%, size is 0.02% rock wool fibers, adds water and stirs, and pours in the slurry can through falling stock pump, through beating pump slurries is delivered to head box, being diluted to concentration is 0.5%; Enter flow box, the system forming net, controllable thickness is surfed the Net behind 5.0mm;

B, shaping roll-in: make Liu's slurries even, stable, slurries are layering;

C, vacuum dehumidifying: in vacuum process, take out part water, make the water content of sheet material slurries before entering baking oven be controlled at 15%; Temperature is controlled at 300 ℃, and the time of oven dry is controlled at 3min, with the sheet material drying forming;

D, cooling: to be cooled to normal temperature, cut periphery on request, make the thickness of sheet material reach the standard plate of 5mm.

Embodiment two, and the present embodiment core material of vacuum heat insulation plate is made and comprised the steps:

A, choose that diameter is that 4-7 μ m, water content are 10%, size is 0.08% rock wool fibers, adds water and stirs, and through pouring in the slurry can to stock pump, through beating pump slurries is delivered to head box, is diluted to 0.8%; Enter flow box, the system forming net, controllable thickness is surfed the Net behind 10mm;

B, shaping roll-in: make the stream slurries even, stable, unanimity, slurries are layering;

C, vacuum dehumidifying: in vacuum process, take out part water, make the water content of sheet material slurries before entering baking oven be controlled at 55%; Temperature is controlled at 400 ℃, and the time of oven dry was controlled at 4 minutes, with the sheet material drying forming;

D, cooling: to be cooled to normal temperature, cut periphery on request, make the thickness of sheet material reach the standard plate of 10mm.

Embodiment three, and the present embodiment core material of vacuum heat insulation plate is made and comprised the steps:

A, select that diameter is that 6-10 μ m, water content are 13%, size is 1.0% rock wool fibers, adds water and stirs, and pours in the slurry can through falling stock pump, through beating pump slurries is delivered to head box, is diluted to 1%; Enter flow box, to forming net, controllable thickness is surfed the Net behind 6mm;

B, shaping roll-in: make the stream slurries even, stable, slurries are layering;

C, vacuum dehumidifying: in vacuum process, take out part moisture, make the water content of sheet material slurries before entering baking oven be controlled at 75%; Temperature is controlled at 450 ℃, and the time of oven dry is controlled at 4min, with the sheet material drying forming;

D, cooling: to be cooled to normal temperature, cut periphery on request, make the thickness of sheet material reach the standard plate of 6mm.

The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.

Claims (1)

Translated fromChinese

1.一种真空绝热板芯材制作方法，包括如下步骤：1. A method for manufacturing a core material of a vacuum insulation panel, comprising the steps of:A、将岩棉纤维打浆上网；A. Slurry the rock wool fiber online;B、整形滚压；B. Plastic rolling;C、真空除湿；C. Vacuum dehumidification;D、冷却成材；D. Cooling to become a material;所述A步骤包括如下步骤：Described A step comprises the steps:A1、选取直径为3μm、含水量为8％、浸润剂为0.02％的岩棉纤维；A1. Select rock wool fibers with a diameter of 3 μm, a water content of 8%, and a sizing agent of 0.02%;A2、加水搅拌均匀后倒入储浆罐内，然后输送至流浆箱，稀释至浓度为0.5％；A2. Add water and stir evenly, pour it into the slurry storage tank, then transport it to the headbox, and dilute to a concentration of 0.5%;A3、送入网前箱，织成型网，厚度控制在5mm后上网；A3. Send it into the head box, weave the forming net, control the thickness at 5mm, and then go online;所述C步骤中包括如下步骤：Include the following steps in described C step:C1、在真空条件下抽去部分水，使板材浆液含水量控制在15％；C1. Remove part of the water under vacuum conditions, so that the water content of the plate slurry is controlled at 15%;C2、进入烘箱内烘干成型，烘箱内温度控制在300℃，烘干时间控制在3min；C2. Enter the oven to dry and shape. The temperature in the oven is controlled at 300 ° C, and the drying time is controlled at 3 minutes;所述D步骤包括如下步骤：Described D step comprises the steps:D1、冷却至常温；D1, cooled to normal temperature;D2、按要求进行切割周边，使绝热板芯材的厚度达到5mm。 D2. Cut the periphery according to the requirements, so that the thickness of the core material of the insulation board reaches 5mm. the