58results about How to "High coefficient of friction" patented technology

A camera stand comprises a base portion that may seat on or be suitably anchored on a floor surface, boat, dock, table, rail, vehicle, or other support structure. A horizontally and vertically adjustable linkage extends from the base portion and has the camera positioned at an end of the linkage. Means are provided for keeping the camera at a specific angle from horizontal as the adjustable linkage moves the camera about. Means are provided to provide joints in the linkage that have suitable resistance to unintended movement by gravity, wind or other forces and for which resistance to unintended movement is readily adjustable.

The invention provides an environmentally-friendly biomass compound rubber regenerant. The regenerant is prepared from the following raw materials in mass percentage: 60-85% of bio-oil, 10-20% of natural resin and 5-30% of plant polyphenol. The preparation method of the regenerant comprises the following steps: (1) heating the bio-oil to 60-85 DEG C; (2) respectively adding the natural resins andthe plant polyphenol to the bio-oil and evenly mixing; and (3) naturally cooling the evenly mixed product to room temperature to finally obtain the environmentally-friendly biomass compound rubber regenerant product. In the invention, the bio-oil, the natural resins and the plant polyphenol which are extracted from plants are taken as raw materials, and the raw materials are renewable materials, which realizes maximum resource utilization and reduces dependence on petrochemical resource so as to achieve the purpose of green production of reclaimed rubber. The regenerant has the advantages of good rubber regeneration effect, high product quality, low production cost and no pollution and nuisance during the production process. The environmentally-friendly reclaimed rubber produced by the regenerant can be widely applied to various rubber products and can replace rubber materials, thus saving rubber resources.

An adhesive fabric capable of adhering to the skin of a body, comprising: a barrier layer bonded on one side of a fabric substrate and a cured adhesive silicone gel layer bonded to the barrier layer whereby the barrier prevents absorption of the adhesive silicone gel coating into the fabric substrate.

The invention discloses a paving structure and a paving method for quickly recovering functions of a pavement and a bridge floor. The paving structure comprises a double-layer fiber-added macadam seal layer and an ultrathin antiskid wearing layer from the bottom up, wherein the double-layer fiber-added macadam seal layer comprises a lower binder layer, a chopped fiber layer and an upper binder layer from the bottom up. According to the paving structure and the paving method for quickly recovering the functions of the pavement and the bridge floor, compared with the prior art, on the basis that the original paving is made full use of, gap graded aggregate is adopted to achieve water proofing of the pavement, prevent water from damaging the pavement, and exert the functions of water shutoff and drainage simultaneously; and the paving structure is high in construction efficiency, and can reduce the interference of the traditional construction manner to traffic.

A surfboard comprises a board body (1), wherein the board body (1) is composed of an upper layer (2) made of organic high polymer materials, a foam core plate (3) and a bottom layer (4), the upper layer (2) and the bottom layer (4) wrap the foam core plate (3) inside, the bottom layer (4) is made of a bottom surface layer and a foam plastic inner layer (41), the bottom surface layer is composed of a transparent first polyethylene layer (42), a non-woven fabric layer (43) printed with patterns, a second polyethylene layer (44), a strengthened non-woven fabric layer (43) and a third polyethylene layer (45) sequentially from bottom to top, and the first polyethylene layer (42), the second polyethylene layer (44) and the third polyethylene layer (45) are molten into a fluid state and bond the non-woven fabric layer (43) printed with the patterns, the strengthened non-woven fabric layer (43) and the foam plastic inner layer (41) together to form the bottom layer (4) of the board body (1). The surfboard has the advantages that the bottom surface is smooth, hardness and strength are high, surf sliding resistance is small, use is flexible, the structure is firm, and the service life is long.

The invention discloses modified emulsified asphalt seam filling mortar which is prepared by mixing an A component and a B component, wherein the A component comprises by weight of 100 parts of emulsified asphalt, 10-12 parts of SBS latex modifying agent, 0.5-1 part of cross-linking agent and 50-55 parts of water; the B component comprises by weight of 100 parts of cement, 50 parts of mineral powder, 1 part of water reducing agent, 8-12 parts of expanding agent, 2 parts of aluminum powder, 70 parts of quartz sand and 200 parts of rubble; the modified emulsified asphalt seam filling mortar has a higher softening point and good temperature resistance and prolongs the service life of emulsified asphalt effectively; the road surface friction coefficient and the coating compression resistance and impact resistance can be increased by the aid of the rubble and the quartz sand; the specifically-prepared emulsified asphalt and the SBS latex modifying agent can endow the seam filling mortar with excellent penetration and bonding performance; the modified emulsified asphalt seam filling mortar can meet the high temperature condition and is applied to road repair requiring rapid traffic opening.

A belt type non-stage transmission is constituted so that a V belt obtained by connecting a plurality of elements using a belt is wound around a pair of pulleys which have a groove with V-shaped cross section and which groove width can be changed. A diffusion layer where at least one of Zn and Sn diffuses on a surface layer of a metallic material of the pulleys and the elements is provided to at least one of contacting surfaces between the pulleys and the elements. The diffusion layer contains S and P. As a result, high frictional coefficient and wear resistance can be maintained for a long time, so that the device can cope with heightening of output.

The invention belongs to a prestress cement mixing pile and a construction method thereof. A circumferential wall of a pile body of the prestress cement mixing pile is provided with an irregular protrusion, wherein the protrusion is formed in a manner that pressurized injected increased mortar extrudes clay on the periphery of the wall of a bored pile and is integrally connected with the pile body, and prestressed steel bars are arranged in the pile body. The construction method comprises the steps that pressure is increased segment by segment to inject the increased mortar, when a drill bit for spraying the mortar and conducting stirring of a drill rod is lifted to the height where the length of a pile hole in the lower end of the drill bit accounts for 1/n of the whole length of the pile hole, drill rod lifting is stopped, a pressurizing mortar pump continues to go downwards, the increased mortar is injected into the pile hole in the lower segment of a mortar outlet of a stirring head, and the increased mortar form the irregular protrusion. The prestress cement mixing pile has the beneficial effects that the contact area of the pile body and a foundation soil layer is large, the abrasion coefficient is large, the transverse corresponding nature is high, the pile body strength is high, the load on the upper portion of the pile can be effectively transferred into deep foundation soil, the bearing force is large, the method is simple and practical, and the use effect is good.

The invention discloses a damping and shock insulating spherical fixing support which comprises a lower support plate, an upper support plate, anchor bolts, sleeves as well as guide plates and shearing bolts, wherein a damping rubber plate, a spherical concave liner plate, a spherical surface sliding plate, a spherical crown liner plate and a damping sliding plate are further sequentially arranged from bottom to top between the lower support plate and the upper support plate; the damping sliding plate and the spherical surface sliding plate are respectively adhered to the upper and lower sides of the spherical crown liner plate; four sets of guide plates and shearing bolts are provided; the guide plates are fixed at the front, rear, left and right ends of the upper support plate through the shearing bolts. Due to adoption of the damping rubber plate on the lower support plate, the vertical kinetic energy of a bridge is converted into potential energy and heat energy of the bridge itself in earthquake, and then the impact of components of the support is alleviated; as the guide plates are fixed on the upper support plate through the shearing bolts, if the shearing bolts are cut off, the support can be recovered to a normal use state by only replacing the shearing bolts and resetting the guide plates.