38results about How to "Random cut" patented technology

The invention discloses nano-scale high-precision additive manufacturing equipment. The nano-scale high-precision additive manufacturing equipment comprises a printing platform and a printing nozzle,wherein a high-voltage pulse power supply is applied between the printing platform and a conductive nozzle of the printing nozzle; and a uniform-intensity magnetic field perpendicular to the printingplatform is further arranged between the printing platform and the printing spray head, and the distance between the printing platform and the printing nozzle meets the characteristic requirements. According to the nano-scale high-precision additive manufacturing equipment, nano-scale 2D and 3D additive manufacturing is achieved, high-voltage pulse electric fluid dynamic jetting, a nano-scale printing head and a constraint magnetic field are benefited, and the problem that high-precision nano-scale materials cannot be constructed in the prior art is solved, and particularly relates to the insufficiency and restrictions in the field of electronic circuit board printing, nano energy storage, solar cells and biomedicine, flexible electronic materials, high-flux preparation and the like.

The invention relates to a prefabricated thin concrete slab formwork structure. The prefabricated thin concrete slab formwork structure comprises prefabricated thin concrete slabs, a cushion layer, grooves, integrally-embedded connecting screws, angle iron, leveling base grout layers and cast-in-situ bored piles. The prefabricated thin concrete slabs adopt rabbets for connection, are provided withscrew holes and connected through the evenly-distributed angle iron. The connecting angle iron on the inner side is of an embedded type. The angle iron is provided with lead screw through holes connected with the integrally-embedded connecting screws. Grid cloth anti-crack tapes are arranged in seams between the prefabricated thin concrete slabs. Connecting studs are evenly welded to the angle iron on the inner sides of the prefabricated thin concrete slabs. Lugs are evenly arranged at the tops of the prefabricated thin concrete slabs. The prefabricated thin concrete slab formwork structure has the beneficial effects that an inner formwork of a sliding formwork system is evenly divided into cavities at equal intervals, adjustable sand partition plates are arranged in the cavities to forma limiting balance weight frame, and bags between the partition plates are filled with sand to achieve regional ballasting; and a plate vibrator and a vibrating leveling beam are arranged on a lower panel of a sliding formwork, so that the slope concrete pouring quality is further improved.

The invention relates to a firefighting guide illumination line comprising a continuously luminous strong electroluminescence line (1), a PVC transparent plastic layer (2), an electroluminescence line(3) and a flexible wire cable (4) parallel to the electroluminescence line (3), wherein the PVC transparent plastic layer (2) is arranged outside the strong electroluminescence line (1); the electroluminescence line (3) and the flexible wire cable (4) are arranged in the strong electroluminescence line (1) which is wound on a rotatable wire coil wheel (6) with a stand (5); the center of the wirecoil wheel (6) is provided with charging batteries (7) and a driving controller (8) and is connected in series with one end of the strong electroluminescence line (1); the power-on strong electroluminescence line (1) can continuously illuminate when being electrified, and the wire coil wheel (6) is used to randomly withdraw and release the strong electroluminescence line (1). The firefighting guide illumination line is mainly applied to underground places, such as markets, subways, coal mine, and the like for rescue and guides refugees to evacuate towards a destination direction.

The invention discloses a reinforced foaming ceramic inorganic heat-preserving board. The reinforced foaming ceramic inorganic heat-preserving board comprises the following components in parts by weight: 60 to 120 parts of nanometer silica fume, 5 to 30 parts of cement, 5 to 14 parts of lime, 0.3 to 3 parts of foaming agent and 0.8 to 3.4 parts of reinforcing element, wherein the reinforcing element is titanium or boric reinforcing substance. The invention also provides a preparation method of the reinforced foaming ceramic inorganic heat-preserving board. The product is obtained by foaming and steaming the raw materials. The heat conduction coefficient of the nanometer silica fume is low, so that the convection movement of the air molecules can be effectively prevented, a purpose of heat preservation and flame retardance can be realized, and the cold-hot bridge is unlikely to form. By adding the reinforcing element, the mullite with high strength is formed, so that the compression-resisting strength and the bending-resisting strength are higher. The reinforced foaming ceramic inorganic heat-preserving board has the advantages that the strength is high, the density is low, and the heat conduction coefficient is low.

The invention discloses an embedding structure and method for improving pavement cracking around a luminous floor tile. A pavement groove is embedded above a pavement, the luminous floor tile is arranged above the pavement groove, the pavement groove is dug between a zebra crossing and a carriageway, a base concrete layer is arranged at the upper part in the pavement groove, angle steel is arranged in an angle steel mounting groove through an angle steel bolt, reinforcing steel bars are arranged on one side above the base concrete layer, a drainage groove is formed at the middle above the baseconcrete layer, an anchoring plate and deformed steel are vertically arranged above the angle steel, an expansion joint rubber strip is arranged between the anchoring plate and the deformed steel, ananchoring rib is connected to the reinforcing steel bars in a welded mode, a bottom plate is arranged at the bottom of the deformed steel, both ends of partition plates are arranged in partition plate installation grooves through installation groove rubber strips, the luminous floor tile is arranged on a floor tile supporting plate, a second concrete layer is arranged on the base concrete layer,and an asphalt surface layer is arranged on the second concrete layer. The problem of water accumulation at the bottom of a cast iron box of an existing pavement light-emitting device can be solved, the pavement telescopic effect is solved, and damage of brake starting to the pavement is reduced.

The invention discloses a novel composite partition wall board and a production technology of the novel composite partition wall board. The novel composite partition wall board comprises a core board (1) and side boards (2) arranged two sides of the core board (1), wherein the core board (1) is adhered to the side boards (2) by resins, each side board (2) comprises a lining board (3), a rib strip (4) and a fiber reinforced gypsum board (5), the rib strip (4) has a frame-shaped structure and is fixed on the outer side face of the lining board (3), and the fiber reinforced gypsum board (5) is arranged in the frame-shaped structure formed by the rib strip (4). The production technology of the novel composite partition wall board comprises the following steps of: firstly, machining a wood board into the lining board (3) and the rib strip (4), and combining the lining board (3) with the rib strip (4); secondly, producing the side boards (2) by the means that the fiber reinforced gypsum board (5) is cast in the rib strip (4); and finally, obtaining a finished product by the means that the gluing, the pre-pressing and the cold-pressing operations are preformed to the core board (1) and the side boards (2). The invention is applicable to the inner partition wall with a frame structure, has the characteristics of being light in weight, high in deformation capability and suspension capability, and good in vibration resistance and thermo-technical performance, and is convenient and fast to construct, thereby being suitable for popularization and use.

The invention discloses a flexible platinized counter electrode, and a preparation method and application thereof. The preparation method for the flexible platinized counter electrode comprises the following steps of: 1) preparing a TiO2 layer on a flexible substrate to obtain the flexible substrate modified by the TiO2 layer; and 2) depositing platinum on the TiO2 layer at room temperature by taking a platinum salt as a precursor, taking an alcohol solvent dissolving the platinum salt as a hole scavenger and using an ultraviolet in-situ reduction method to obtain the flexible platinized counter electrode. The preparation method for the flexible platinized counter electrode is simple and low in cost, and the flexible platinized counter electrode can be prepared at low temperature. The obtained flexible platinized counter electrode has the advantages of low platinum content, high catalytic activity, high repeatability, strong platinum particle adhesion strength, high stability and the like.

The invention provides a glass cotton and silica-alumina aerogel composite sandwich thermal-insulating and fireproof board. The composite sandwich thermal-insulating and fireproof board is composed of an upper face layer, a lower face layer and a glass cotton-strengthened silica-alumina aerogel middle layer. The aerogel composite sandwich thermal-insulating and fireproof board meets the installation requirement of an integrated house, is capable of being cut freely and convenient to construct and apply, combines the fireproof advantages of aerogel and a magnesium oxysulfate structure board and has the double effects of fire prevention and thermal insulation, and the thermal conductivity coefficient of the prepared product is increased by about three times compared with the prior art.

The invention provides a non-woven silicon-aluminum aerogel compound sandwich insulating fireproof board which is composed of an upper surface layer, a lower surface layer and a non-woven reinforced silicon-aluminum aerogel middle layer. The non-woven silicon-aluminum aerogel compound sandwich insulating fireproof board meets the installation requirement of integrated houses, can be cut freely and is convenient to construct and apply; fire resistance advantages of aerogel and a magnesium oxysulfate construction plate are combined, the dual effects of fire resistance and heat insulation are achieved, and the heat conductivity coefficient of an obtained product is improved by about three times compared with the prior art.

The invention relates to a prefabricated reinforced concrete board molding bed and a construction method which replace frequently-used brick molding beds. According to the board molding bed, a prefabricated reinforced concrete shuttering body is mounted on an in-pit foundation bed through a connecting piece and a fastening piece in an enclosing mode, the shuttering body is of a rectangular prefabricated reinforced concrete shuttering body structure, a horizontal arc-shaped boss used for increasing height is arranged on the upper surface of the shuttering body, a horizontal arc-shaped groove used for increasing height and matched with the horizontal arc-shaped boss is formed in the lower surface of the shuttering body, namely the upper surface and the lower surface of the shuttering body are of a concave-convex matching structure, and evenly distributed horizontal through holes used for containing reinforced concrete sleeves are formed in the lateral sides of the shuttering body. The molding bed made of boards is simple in structure, easy and fast to install, fast in progress and high in quality. Installation is achieved on site in a one-shot mode. The boards can be cut, bricklaying is omitted, labor is saved, cost is saved, and the construction period is shortened.

The invention discloses a porous COFs block material and application thereof in isomer separation. The method comprises the following steps: firstly, adding 2, 4, 6-tri(4-aminophenyl)-1, 3, 5-triazine(TAPT) and a diformaldehyde monomer to prepare amphiphilic COFs particles through Shiff-base reaction, then using amphiphilic COFs particles as a surface active agent to prepare an O / W type Pickeringemulsion, taking the Pickering emulsion as a template, and preparing the porous COFs block material through freeze drying. The porous COFs block material disclosed by the invention has good chemicalstability and thermal stability, the porosity is adjustable and the density is controllable, the porous COFs block material has good mechanical properties, can be cut into materials with different geometrical shapes, can realize effective separation of 2-nitrotoluene, 4-nitrotoluene, 2-chloronitrobenzene, 4-chloronitrobenzene and other isomers, has separation and recovery efficiency reaching about80%, and can be recycled after separation.

The invention provides slotting equipment for coal seam gas treatment, and belongs to the technical field of coal seam gas treatment, the slotting equipment comprises two slotting main machines which work synchronously and coordinately, the two slotting main machines are arranged in roadways on the two sides of a coal seam respectively, and the two slotting main machines are in transmission connection through an annular cutting rope; the slotting main machine comprises a self-walking platform, a power module, a speed reducer, a gear reverser and a main driving line wheel are arranged on the upper portion of the self-walking platform, and the power module transmits power to the gear reverser through the speed reducer. According to the invention, the annular cutting rope which circularly moves is adopted as cutting force, and is combined with feeding force provided by the two slotting main machines which synchronously and coordinately work, so that one or two slots can be transversely cut in the coal seam, and traditional high-density drilling is replaced, so that the labor intensity is greatly reduced, the cost is saved, an anti-reflection area formed by the slots is larger, and the anti-reflection effect is better. And gas desorption is facilitated, so that the gas extraction efficiency is greatly improved.

The invention discloses a method for manufacturing a water glass aerogel product by using a freeze-drying method and an application of the product. The method comprises the following steps of: preparing silica wet gel; modifying the surface; cleaning; performing freeze-drying; and moving from a die; the freeze-drying process includes the specific steps of: freezing a water glass aerogel product until a liquid substance in the product is crystallized, and then heating at a vacuum degree of 10 to 30Pa until all the ice crystals in the frozen product are sublimated, thus accomplishing the drying; and the drying is carried out at twice. An aerogel plate manufactured by the method is lightweight, appears white and light yellow, has no cracks on the surface, is completely hydrophobic, is at the fire rating A and completely noncombustible, and has an extreme effect on sound absorbing and insulating. The product can be prepared into a structure of a large block which is convenient for practical application. The product manufactured by the method has a large specific surface area, high porosity, low density and low heat conductivity coefficient. According to the method, massive industrial production can be carried out, and the cost is reduced. A thermal insulation material prepared from the aerogel product can be widely applied to thermal insulation and sound insulation of a compartment body of a vehicle, thermal insulation of petro-chemical pipelines, thermal insulation of wall bodies of a building, etc.

The invention relates to the technical field of a carbon fiber parallel electric tracing band, in particular to a carbon fiber parallel electric tracing band which is environmental-friendly and durable and can be arbitrarily cut. A high-temperature resistant fiber weaving layer is arranged outside a carbon fiber, and the contact force between the carbon fiber at a gap and a bus can be improved; since the carbon fiber can bear a large pull force, heat generation pitch does not horizontally move after an external tension force is applied to the product; a conductive paint layer is coated between the bus and the carbon fiber, the adhesive force between metal and the carbon fiber is greatly improved, and the firmness between the bus and the carbon fiber is effectively guaranteed; the carbon fiber has extremely high tensile strength, the situations that the bus is turned over due to heat and the carbon fiber is further cracked are prevented; the carbon fiber does not have electromagnetic radiation, and no harm to a human body is generated; and with the design of a pitch gap, the electric tracing band can be arbitrarily cut, and the demands of different clients are satisfied.

The invention relates to the field of projection, in particular to a bonding type flexible laser television screen. The bonding type flexible laser television screen is of a layered structure and comprises back glue release paper, a back glue layer, a reflecting layer, a curtain cloth layer and a protecting layer, which are sequentially fixed; a pattern layer can be arranged between the reflectinglayer and the curtain cloth layer. The reflecting layer is a metal film or a reflecting film, the metal film is a mirror-like smooth aluminum or silver film, the thickness of the metal film is 0.1-50microns, the reflecting film is prepared from 1-5% of metal powder and a polymer, and the thickness of the reflecting film is 40-200 microns. The curtain cloth layer is a glass fiber cloth or a reflecting microsphere film, and the reflecting microsphere film is formed by half-embedding reflecting microspheres in a transparent organic film. The bonding type flexible laser television screen has thecharacteristics of being flexible, transparent, capable of being cut freely, convenient to transport and mount and the like; the screen is provided with back glue and can be bonded to any flat surface, and after the screen is bonded, a bottom layer pattern of an original wall is perspective certainly or the pattern layer is arranged in the screen, and an attractiveness effect is achieved.

The invention discloses preparation of superefficient carbon fiber electromagnetic shielding paper and belongs to the field of special paper. According to the method, complementary advantages of two fibers, namely carbon fibers and metallic conductive fibers, are innovatively utilized, the defect that the previous single carbon fiber paper-based material is insufficient in toughness is changed, and physical properties and conductivity of the carbon fiber electromagnetic shielding paper are optimized, thereby guaranteeing that the finished paper has good and higher shielding effectiveness and also has good mechanical properties and flexibility; meanwhile, the superefficient carbon fiber electromagnetic shielding paper is wider in applicability and easy to use and has higher conductivity, higher electromagnetic shielding property, better heat resistance and better air permeability, all the indexes are effectively controlled, and the superefficient carbon fiber electromagnetic shielding paper can be cut at will and used.

The invention provides a vitreous microbead lightweight thermal insulation wall block. The vitreous microbead lightweight insulation wall block includes bed material, medium material, surface materialand a gridding cloth, the fabric and the bed material are composed of the following components, by weight: 100 parts of sulphoaluminate cement, 2-8 parts of fly ash, 0.5-3 parts of iron oxide yellow,0.5-2 parts of silica fume, 2-6 parts of a vitreous microbead, 1-2 parts of mekralon, 0.05-0.1 part of trisodium phosphate, 0.01-0.02 part of organosilicon, and 35-50 parts of water; the medium material is composed of the following components, by weight: 100 parts of the sulphoaluminate cement, 2-8 parts of the fly ash, 0.5-2 parts of the silica fume, 15-25 parts of the vitreous microbead, 1-5 parts of a polystyrene granule, 0.05-0.1 part of the trisodium phosphate, 0.001-0.01 part of oxalic acid, 0.01-0.02 part of organosilicon, 0.01-0.015 part of sodium butylnaphthalenesulfonate, and 30-40parts of the water. The wall block has the advantages of low cost, high strength, long service life, excellent insulation and sound insulation effect, and light weight.

The invention discloses a porous COFs block material and its application in the separation of isomers. First, 2,4,6-tris(4-aminophenyl)-1,3,5-triazine (TAPT ) and diformaldehyde monomers to prepare amphiphilic COFs particles by Shiff-base reaction, and then use amphiphilic COFs particles as surfactant to prepare O / W Pickering emulsion, and then use Pickering emulsion as a template to prepare porous COFs by freeze-drying blocks. The porous COFs block material of the present invention has good chemical stability and thermal stability, adjustable porosity, controllable density, and has good mechanical properties and can be cut into materials of different geometric shapes, which can realize 2‑nitrotoluene, 4‑ For the effective separation of nitrotoluene, 2-chloronitrobenzene, 4-chloronitrobenzene and other isomers, the separation and recovery efficiency can reach about 80%, and the separated porous COFs blocks can be recycled.

The invention relates to a method for preparing a zirconium diboride / silicon carbide composite ceramic diaphragm by water-based tape casting, which is characterized in that water is used as the only solvent in the tape casting process, and diboron is sequentially added to an aqueous solution containing a dispersant Zirconium carbide and silicon carbide powder are mixed by ball milling to obtain a co-dispersed slurry of zirconium diboride and silicon carbide. Polyacrylate emulsion is used as a binder and an appropriate amount of film-forming aid is added. After ball milling, a slurry suitable for casting is prepared. The formed slurry is defoamed, casted and dried to obtain a uniform and smooth ZrB2 / SiC composite cast film. It has the advantages of simple operation, easy control of conditions, low cost, non-toxic and harmless, etc., and the amount of binder required for film formation is small, and has a low glass transition temperature (Tg), no need to add plasticizers, flow The content of organic matter in the cast film is not high, which is beneficial to the debonding and sintering of the cast film. In addition, the casting slurry has good wettability to the Mylar film tape, and the casting film dries quickly after casting, and has good strength and toughness.

The invention discloses a reinforced foaming ceramic inorganic heat-preserving board. The reinforced foaming ceramic inorganic heat-preserving board comprises the following components in parts by weight: 60 to 120 parts of nanometer silica fume, 5 to 30 parts of cement, 5 to 14 parts of lime, 0.3 to 3 parts of foaming agent and 0.8 to 3.4 parts of reinforcing element, wherein the reinforcing element is titanium or boric reinforcing substance. The invention also provides a preparation method of the reinforced foaming ceramic inorganic heat-preserving board. The product is obtained by foaming and steaming the raw materials. The heat conduction coefficient of the nanometer silica fume is low, so that the convection movement of the air molecules can be effectively prevented, a purpose of heat preservation and flame retardance can be realized, and the cold-hot bridge is unlikely to form. By adding the reinforcing element, the mullite with high strength is formed, so that the compression-resisting strength and the bending-resisting strength are higher. The reinforced foaming ceramic inorganic heat-preserving board has the advantages that the strength is high, the density is low, and the heat conduction coefficient is low.

A provided garbage ceramsite lightweight thermal insulation wall block includes bed material, medium material, surface material and a grid cloth, the fabric and the bed material are prepared from thefollowing components, by weight: 100 parts of sulphoaluminate cement, 2-8 parts of fly ash, 0.5-3 parts of iron oxide yellow, 0.5-2 parts of silica fume, 2-6 parts of garbage ceramsite, 1-2 parts of mekralon, 0.05-0.1 part of trisodium phosphate, 0.01-0.02 part of organosilicon and 35-50 parts of water; the medium material is prepared from the following components, by weight: 100 parts of the sulphoaluminate cement, 2-8 parts of the fly ash, 0.5-2 parts of the silica fume, 15-25 parts of the garbage ceramsite, 1-5 parts of a polystyrene granule, 0.05-0.1 part of the trisodium phosphate, 0.001-0.01 part of oxalic acid, 0.01-0.02 part of the organosilicon, 0.01-0.015 part of sodium butylnaphthalenesulfonate, and 30-40 parts of the water. The wall block has the advantages of low cost, high strength, long service life, excellent insulation and sound insulation effect, and light weight.

The present invention relates to a plastic form panel for building. It includes beam side form panel, beam bottom form panel, beam column form panel and large form panel. All the form panels are made up by using plastic material through integral extruding and forming process. Said plastic form panel has high strength and rigidity and good stability, and its weight is light.

The invention relates to a prefabricated reinforced concrete board molding bed and a construction method which replace frequently-used brick molding beds. According to the board molding bed, a prefabricated reinforced concrete shuttering body is mounted on an in-pit foundation bed through a connecting piece and a fastening piece in an enclosing mode, the shuttering body is of a rectangular prefabricated reinforced concrete shuttering body structure, a horizontal arc-shaped boss used for increasing height is arranged on the upper surface of the shuttering body, a horizontal arc-shaped groove used for increasing height and matched with the horizontal arc-shaped boss is formed in the lower surface of the shuttering body, namely the upper surface and the lower surface of the shuttering body are of a concave-convex matching structure, and evenly distributed horizontal through holes used for containing reinforced concrete sleeves are formed in the lateral sides of the shuttering body. The molding bed made of boards is simple in structure, easy and fast to install, fast in progress and high in quality. Installation is achieved on site in a one-shot mode. The boards can be cut, bricklaying is omitted, labor is saved, cost is saved, and the construction period is shortened.

The invention discloses an embedding method for improving road surface cracking around luminous floor tiles. The road surface groove is embedded above the road surface, the luminous floor tile is arranged above the road surface groove, the road surface groove is excavated between the zebra crossing and the traffic lane, and the base concrete layer is arranged on the road surface Above the inside of the groove, the angle steel is set in the angle steel installation groove through the angle steel bolts, the steel bar is set on the side above the base concrete layer, the drainage groove is set in the middle above the base concrete layer, the anchor plate and the special-shaped steel are vertically set above the angle steel, and the expansion joint rubber strip Set between the anchor plate and the special-shaped steel, the anchor bar and the steel bar are welded and connected, the bottom plate is set at the bottom of the special-shaped steel, the two ends of the partition are installed in the installation groove of the partition through the rubber strips of the installation groove, and the luminous floor tiles are arranged above the floor tile support plate , the second concrete layer is arranged above the base concrete layer, and the asphalt surface layer is arranged above the second concrete layer. The invention can solve the problem of water accumulation at the bottom of the cast iron box of the existing road surface light emitting device, solve the expansion and contraction effect of the road surface, and reduce the damage to the road surface caused by brake activation.

The invention provides a composite hollow grid-like structural plate and a manufacturing method. Continuous fiber is adopted to reinforce a first reinforcing layer; the first reinforcing layer is embedded in a template through the pultrusion process and melts to form an integrity with the template, so that the product performance is improved. Compared with the prior art, the composite hollow grid-like structural plate has higher strength on the condition of the same cross section area. On the condition of ensuring consistent strength, the cross section area of the composite hollow grid-like structural plate is smaller, so that the weight of the composite hollow grid-like structural plate is reduced. Two side ribs provide main support force and simulate a dorsal rib to be used, so that thenumber of reinforcing members during construction is reduced. According to the manufacturing method, the composite production process is adopted to ensure the entire continuity of continuous fiber, and in the prior art, the continuous fiber is sheared through occlusion of screw rods. With adoption of the manufacturing method, the structure adjustment is simple, the width can be customized througha die, and arbitrary cutting in the length direction can be carried out.

The invention discloses an improved bimetal plate. The improved bimetal plate is characterized by comprising a metal plate body, wherein a layer of flux cored arc welding layer is arranged on the surface of the metal plate body. The manufacturing method of the improved bimetal plate is characterized by comprising the following steps of: taking the normal metal plate body in a proper size as a matrix, cleaning and drying the metal plate body, after adequately drying the metal plate body, overlaying the flux cored arc welding layer on the surface of the metal plate body by a method of open arc swinging, submerged arc swinging or gas shield swinging.

The invention discloses a method for preparing a DFB-LD grating debugging sample by electron beam exposure, which belongs to the field of microelectronics technology, comprising: step 1, coating electron beam glue on the wafer; step 2, pre-baking the wafer; 3. Use the layout design tool to draw the DFB‑LD grating debugging layout; based on the target DFB‑LD grating layout, under the premise of keeping the chip unit consistent with the target DFB‑LD grating layout, the DFB‑LD grating debugging layout is parallel to the grating direction The target DFB-LD grating layout is consistent, and the vertical grating direction changes from the grating alignment arrangement between the chip units to a stepped arrangement, and the staggered interval of the steps is equal to the length of the grating along the grating line; Fixing and hardening. By adopting the above technical solution, the present invention can improve the observation convenience and preparation success rate of grating section observation samples.

The invention relates to white foam glass. The glass comprises essential components and at least one decoloring component, wherein the essential components comprise about 70-76 mol% of SiO2, about 5-9 mol% of CaO, 18 mol% to about 22 mol% of Al2O3, and about 1-2 mol% of SnCl2, and the at least one decoloring component comprises (a) NiO which is greater than 0 mol% to about 5 mol%, and / or (b) Se which is greater than 0 mol% to about 4 mol%. The white foam glass has the characteristics of being high-whiteness in appearance, low in building cost, long in service life, good in effects of heat insulation and sound insulation, light in bulk unit weight and the like, and the density is 165 kg / m<3> or below.

A provided expanded vermiculite lightweight thermal insulation wall block includes bed material, medium material, surface material and a grid cloth, the fabric and the bed material are prepared from the following components, by weight: 100 parts of sulphoaluminate cement, 2-8 parts of fly ash, 0.5-3 parts of iron oxide yellow, 0.5-2 parts of silica fume, 2-6 parts of expanded vermiculite, 1-2 parts of mekralon, 0.05-0.1 part of trisodium phosphate, 0.01-0.02 part of organosilicon and 35-50 parts of water; the medium material is prepared from the following components, by weight: 100 parts of the sulphoaluminate cement, 2-8 parts of the fly ash, 0.5-2 parts of the silica fume, 15-25 parts of the expanded vermiculite, 1-5 parts of a polystyrene granule, 0.05-0.1 part of the trisodium phosphate, 0.001-0.01 part of oxalic acid, 0.01-0.02 part of the organosilicon, 0.01-0.015 part of sodium butylnaphthalenesulfonate, and 30-40 parts of the water. The wall block has the advantages of low cost, high strength, long service life, excellent insulation and sound insulation effect, and light weight.