38results about How to "Random cut" patented technology

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 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 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 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 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.