111results about How to "Easy aging" patented technology

The invention discloses long-acting metal anticorrosive paint used in metal member and equipment and preparing method, which is made by stirring and grinding coal tar pitch, organic polymolecularity resin, antirusting agent and auxiliary agent and then adding curing agent after adjusting viscosity. The metal anticorrosive paint possesses good weatherability and corrosion resistance, and can be used in metal member, metal member, building, underground engineering, ship and other preservative engineering.

The invention relates to an anti-impact efficient wear resistant material which is made of the following raw materials with the following weight ratio: 35 to 40 portions of ordinary Portland cement, 50 to 60 portions of quartz sand, 1.5 to 2 portions of sulpho-aluminate cement, 2 to 4 portions of coal ash, 0.4 to 1 portion of emulsion powders, 0.35 to 0.45 portion of dihydrate gypsum powder, 1.5 to 2.5 portions of silica dioxide powder, 0.35 to 0.45 portion of water reducing agent, 0.1 to 0.2 portion of cellulose ether and 0.1 to 0.2 portion of polypropylene staple. By adopting non-poisonous environmental protective raw materials, the anti-impact efficient wear resistant material has the advantages of impact resistance and high anti-compression strength, strong performance of high temperature resistance, good durability, long service life, environmental protection and low cost.

The invention discloses bagel bread containing a raw material of chia seeds. The bagel bread is mainly prepared from the following raw materials: strong flour, chia seed powder, yeast, a bread modifier, sugar, cream, salt and water. The invention further discloses a preparation method of the bagel bread containing the raw material of the chia seeds. The preparation method comprises the following working procedures: preparing overnight sour dough, preparing main dough, fermenting the prepared main dough, dividing the fermented main dough, shaping the divided main dough so as to form much dough, fermenting the dough for the first time, performing decoration, fermenting the dough for the second time, cooking the fermented dough, baking the cooked dough and the like. The bagel bread prepared by the method has the characteristics that the fragrance is pure, the mouth feel is elastic and chewy, the distribution of the chia seeds is obvious, and the content of linolenic acid is high, and the nutritional value is high.

The invention discloses a combined type high-power semiconductor laser side pumping source and a preparation method thereof. The invention aims to solve the technical problems of low finished product rate, low yield, inconvenience for assembly, disassembly and maintenance, shorter service life, and the like of a semiconductor laser pumping source in the prior art. The side pumping source comprises a semiconductor laser module group and a heat radiator, wherein the semiconductor laser module group comprises one or more semiconductor laser modules; and all semiconductor laser modules are fixedly arranged on the heat radiator in a movable linkage way or a welding way. In the invention, the semiconductor laser modules can be tested, aged and screened in advance and can be singly packaged, tested and aged; and different chips can be selected for combining and controlling, and the multi-wavelength wide spectrum output can be realized. If one module of the pumping source is abnormal in the use process, the module can be singly replaced so that the combined type high-power semiconductor laser side pumping source disclosed by the invention has the advantages of higher yield and longer service life.

The invention provides a processing method of fresh-keeping instant rice noodles, and relates to the technical field of food processing. The processing method of the fresh-keeping instant rice noodlescomprises the following steps of (1) preparing the raw materials; (2) performing fermentation; (3) performing milling to obtain pulp; (4) performing blending; (5) performing enzymolysis; (6) performing twin-screw extruding and shaping; (7) performing ageing; (8) performing cooking once again; (9) performing noodle washing, and performing cutting off; (10) performing metering and packing; (11) performing post-sterilizing; and (12) performing cooling. According to the fresh-keeping instant rice noodles, the compounding ratio of the materials is adjusted and controlled, and secondary fermentation is combined with optimization treatment with diastase, noodle cooking, cooking, recooking, post-sterilizing and quick cooling, so that the problems that rice noodles are subjected to beta configuration (namely retrogradation) and cannot be stored for a long term can be solved, the rice starch can maintain alpha state, and the instant rice noodles being rapid in rehydration, good in mouth feel and edible after being brewed for a short time, can be made.

The invention relates to a fire hazard identification method and system based on artificial intelligence and binocular vision. The method comprises the following steps: 1) obtaining a to-be-detected binocular image of a to-be-detected area; 2) using the target detection network model to determine whether flames exist in the binocular image to be detected, if yes, outputting a flame area image, and if not, executing the step 1); 3) performing three-dimensional space positioning on the flame area image to obtain three-dimensional information of the flame area image; 4) calculating the optimal field angle of the infrared temperature measurement sensor; 5) controlling the infrared temperature measurement sensor to measure the temperature of the flame area at the optimal field angle to obtain a temperature measurement value of the flame area; and 6) judging whether the temperature measurement value exceeds a set value, if so, judging that a fire occurs in the flame area, otherwise, judging that no fire occurs in the flame area, and executing the step 1). Compared with the prior art, the system is good in accuracy, high in reliability, high in safety, wide in application range and low in layout and maintenance cost, flame positioning is provided, and the fire extinguishing efficiency is improved.

The invention provides a fireproof insulation material used for a wall surface and a preparation method. The material comprises natural sepiolite amiantus, natural vermiculite, closed cell perlite, light calcium carbonate, white cement, gesso, ordinary portland cement, high-alumina cement and seaweed powder, and is prepared by respectively crushing the above motioned components into 300 to 500 meshes, adding the crushed components into a mixer and stirring the components at a rotating speed of 500 to 800 r / m for 10 to 30 min. A construction method for the material comprises the following steps: taking 40 to 45% of an insulation energy saving wall surface material and 55 to 60% of water, mixing the wall surface material and water to obtain a slurry, applying the slurry onto a blank wall inthree times so as to form three slurry layers, carrying out maintenance for 5 to 7 days and then carrying out paint decoration. The insulation wall material provided in the invention has good permeability, a small coefficient of thermal conductivity, a high coefficient of thermal insulation, good aging resistance, a good waterproof effect, good anti-cracking performance, a low price and a wide application scope; the preparation method is simple, is easy to operate and convenient to construct and enables work efficiency to be improved and production cost to be reduced.

The invention relates to a solar heat reflective heat insulating and preserving foaming ceramic material and a manufacturing method thereof, belonging to the field of the preparation of an energy-saving ceramic material. The manufacturing method comprises the following steps of: preparing a closed pore ceramic matrix by adding an amount of low-cost minerals to industrial wastes such as coal gangues, pulverized fuel ash and the like, compounding a solar heat reflecting layer composed of inorganic materials in situ in the preparation process, and carrying out primary sintering to obtain a heat insulating and preserving integrated material which has ideal heat insulating and preserving performance, noise reduction performance and the like. The invention combines the solar heat reflection function, the structural functions of porous materials and the heat transfer and noise reduction characteristics of porous materials, and the manufactured foaming ceramic material has smaller heat transfer coefficient, higher solar heat reflectivity, favorable corrosion prevention and high-temperature resistance and excellent mechanical properties, weather resistance and sound insulation performance.Besides, the process of the manufacturing method is simple, procedures can be adjusted easily, and materials are easy to acquire, thereby facilitating application and popularization.

The invention discloses an optical fiber fast terminating assembly which comprises a body and an internal hole located in the body, wherein two grooves are formed on the body till the internal hole is exposed; a butt-joint end surface of an optical fiber is located at the position of the internal hole between the grooves; and the two grooves are used for filling matched gels. The grooves respectively prevents the fixed pre-buried optical fiber glue from covering the pre-buried optical fiber butt-joint end surface due to capillary action and pre-placing enough matched gels to eliminate Fresnel reflection when an access optical fiber is butt jointed with the pre-buried optical fiber. The optical fiber butt-joint end surface is located between the two grooves of an insert core body, coaxial butt-jointing of the optical fibers can be realized by utilizing the insert core body high-precision internal hole tube bundle butting optical fiber, thereby realizing fast terminating of the optical fiber on the operation site. With the assembly provided by the invention, two grooves are sealed by sealing sleeves sleeved on the insert core body, so that the matched gels can be prevented from being volatilized or contaminated, and the product can be ensured not to be failed when being used under harsh environment conditions.

The present disclosure provides an OLED pixel circuit and a method for retarding the aging of an OLED device. By providing a first sub-pixel driving unit, a second sub-pixel driving unit, a first reverse biasing unit, and a second reverse biasing unit and by simple control timing, a first light emitting diode and a second light emitting diode will not always be in a DC biased state, and the first light emitting diode and the second light emitting diode will emit light alternately in different frames.

The invention discloses a confidential, cleaning function non-contact holographic keyboard device, including virtual region, control unit, and display device, and virtual region forming a surface and including a number of virtual buttons, and the control unit connecting with the display device, around the virtual region installed with multiple pairs mutual matching launch sensors and receiving sensors, and in each pair launch sensor and receiving sensor, the receiving sensor receives the signal issued by the launch sensor, and the receiving sensor output connecting with the control unit, and the launch sensors of the arbitrary two pairs launch sensors and receiving sensors issues the signals at the junction corresponding to a virtual button of the said virtual region, and one output signal of the control unit respectively drives each launch sensors through a signal amplification driver circuit. Due to the above circuit structure, the invention has advantages of high safe performance, non-contact, clean health, long life, and others.

The invention relates to a stable transmission machine which comprises a delivery mechanism, a front castor vehicle frame and a rear castor vehicle frame. A hydraulic jack is arranged on the front castor vehicle frame; the upper end part of the hydraulic jack is fixedly connected with the middle part of a beam; both end parts of the beam are hinged with a rack of the delivery mechanism; connecting rods are hinged between the front castor vehicle frame and two sides of the delivery mechanism; transverse shaft sleeves are respectively sleeved at both end parts of a rear castor sleeve shaft and two front castor sleeve shafts; the outer walls of the transverse shaft sleeves are fixedly connected with a longitudinal castor frame; universal wheels are arranged at the lower sides of both front and rear ends of the longitudinal castor frame; and the front castor vehicle frame is also provided with a hydraulic oil supply system for controlling to lift and descend the hydraulic jack. The stable transmission machine is provided with a 8-wheel balanced system capable of carrying out universal balancing and a hydraulic lifting system, and thus, the stable transmission machine not only has strong self-balancing capacity, but also has the advantages of simple structure and long service life.

The invention discloses a high-strength and corrosion-resistant plastic sheet pile and a preparation method thereof. The high-strength and corrosion-resistant plastic sheet pile is prepared from the following raw materials: polyvinyl chloride, a plasticizing agent, filler, a heat stabilizer, an ultraviolet absorbent, vinyl pyridine, vinyl pyrimidine, an initiator, zirconia fiber, rosin pyrolytic polymer and wholly aromatic copolyester. The plastic sheet pile is prepared by the steps of mixing, extruding and mold pressing and the like. The high-strength and corrosion-resistant plastic sheet pile and the preparation method disclosed by the invention have the beneficial effects that by adoption of the zirconia fiber, the rosin pyrolytic polymer and the wholly aromatic copolyester as a reinforcement system, so that the corrosion resistance and the hardness of the plastic sheet pile are improved.

The invention belongs to the field of high molecular materials, and in particular relates to toughened and modified small scale bulk powder polypropylene and a preparation method thereof. The toughened and modified small scale bulk powder polypropylene is prepared from the following components in parts by mass: a base stock containing 50 to 80 parts of small scale bulk powder polypropylene, 3 to 20 parts of polypropylene copolymer and 5 to 30 parts of toughening agent, 5 to 30 parts of filler, 0.1 to 4 parts of stabilizing agent, 0.5 to 3 parts of lubricating agent, 0.5 to 4 parts of dispersing agent and 1 part of coupling agent. The filler and the coupling agent are processed, and then are centrifugally separated and oven-dried, so as to obtain a raw material A; other components are oven-dried at a temperature of 60 DEG C to 80 DEG C and are mixed with the raw material A, so as to obtain a raw material B; the raw material B is extruded and granulated to obtain a granular material C; the raw material C is uniformly mixed with the polypropylene copolymer and the toughening agent according to a proportion, and an obtained mixture is granulated to obtain a toughened and modified polypropylene granular material. A cantilever beam made from the toughened and modified small scale bulk powder polypropylene has the impact strength which can be increased by 20 times at most, and has a heat distortion temperature which can be increased by 10 DEG C.

The invention discloses a sealing structure for wind power gear box planetary-stage lubrication. The sealing structure comprises a lubricating plate (1), a box body bearing seat (2), a left bearing (3), a right bearing (4), a planet carrier outer shaft (5) and an adjusting cover (6), wherein the lubricating plate (1) is provided with an outer circle (1-1), a left inner ring end face (1-2), a right inner ring end face (1-4), a left outer ring end face (1-3) and a right outer ring end face (1-5), the box body bearing seat (2) is provided with an inner protruding ring (2-3) and an inner hole (2-1), the left bearing (3) is provided with an outer ring end face (3-1), and the right bearing (4) is provided with an outer ring end face (4-1). The sealing structure is characterized in that an annular clearance (A) is formed between the outer circle of the lubricating plate and the inner hole of the inner protruding ring of the box body bearing seat; a left end face clearance (B) is formed between the opposite arrangement positions of the left outer ring end face of the lubricating plate and the outer ring end face of the left bearing, and a right end face clearance (C) is formed between the opposite arrangement positions of the right outer ring end face and the outer ring end face of the right bearing; the clearances are mutually communicated, and therefore processing is easy, and safety and reliability are achieved.

The invention relates to an emulsification stabilizer and a cereal dietary fiber beverage containing the same. The emulsification stabilizer comprises an emulsifier, hydrophilic gel and emulsifying salt. The novel stabilizer is capable of effectively suspending starch retrogradation particles in the cereal dietary fiber beverage, effectively inhibiting the sediment phenomenon of the cereal dietary fiber beverage, preventing the drainage phenomenon caused by common starch retrogradation in the cereal dietary fiber beverage, and remarkably covering delayed bitterness generated by polypeptides. The prepared cereal dietary fiber beverage has the characteristics of a stable state, a smooth mouth feel, capability of effectively supplementing dietary fibers of a human body, and easiness in absorption of nutrients.

The invention discloses cold-resisting and wind-resisting type glass and belongs to the field of glass. The cold-resisting and wind-resisting type glass comprises wind-resisting type glass, wherein manufacturing materials of the wind-resisting type glass comprise common glass raw materials and various additives; the glass raw materials comprise quartz sand (SiO2), sodium carbonate (Na2CO3), calcite (CaO), limestone (CaCO3), a boron compound (B2O3) and barium carbonate (BaCO3); one additive comprises polypropylene; carbon fibers, PP-g-MAH and carbon black are added into the polypropylene; the polypropylene and ethylene propylene rubber are blended; when the wind-resisting type glass is mounted, a wind-resisting type mounting mechanism is mounted; the wind-resisting type mounting mechanism comprises a window frame; pre-formed grooves are dug at left and right inner walls of the window frame; the wind-resisting type glass is located between the two pre-formed grooves, so that the cold-resisting effect of the glass can be realized and the glass at low temperature is not easy to crack; meanwhile, the cold-resisting and wind-resisting type glass is mounted through the wind-resisting typemounting mechanism and is convenient to mount, so that installation can be finished without the need of professional staff.

A method includes product side showering of showering a first surface (the surface of a product (11) opposite to a feeder head (12)) of an Al alloy casting (10) including the product (11) and the feeder head (12) with mist of cooling liquid, and feeder head side showering of showering a second surface (the surface of the feeder head (12) opposite to the product (11)) of the Al alloy casting (10) with the mist of the cooling liquid. The feeder head side showering starts showering the second surface of the Al alloy casting (10) after a start and before an end of the product side showering to quench and cool the Al alloy casting (10) together with the product side showering.

The invention relates to a method for removing heavy metals in traditional Chinese medicine by using a zeolite molecular sieve membrane, which comprises the following steps: (1) cleaning the surface of a porous carrier, and coating a seed crystal suspension on the surface of the porous carrier; After drying at a certain temperature, the porous carrier is placed in the crystal growth solution until the seed crystals on the surface of the porous carrier are produced into a film to obtain a zeolite molecular sieve membrane; (2) one side of the zeolite molecular sieve membrane prepared in step (1) The traditional Chinese medicine extract is circulated, and the complexing agent solution is circulated on the other side of the zeolite molecular sieve membrane to remove heavy metals in the traditional Chinese medicine extract. Compared with the prior art, the present invention has less adsorption to the active ingredients of traditional Chinese medicines, has selectivity to heavy metal ions, and has low cost, and adopts a continuous production process, which is beneficial to popularization and use of the technology.

The invention discloses an adhesive, a preparation method thereof and a lithium-ion secondary battery prepared by applying the adhesive, wherein, the adhesive comprises the following components according to parts by weight: 16-20 portions of synthetic styrene-butadiene rubber, 12-14 portions of natural styrene-butadiene rubber, 1.4-1.6 portions of mineral oil, 0.65-1.0 portion of antioxidant and 95-110 portions of solvent. Preferably, the synthetic styrene-butadiene rubber is oleic acid styrene-butadiene rubber, and the natural styrene-butadiene rubber is rosin styrene-butadiene rubber. The invention also discloses the preparation method of the adhesive and the lithium-ion battery using the adhesive. The negative pole piece is not easy to crack and fall stock, and the phenomenon of roll banding usually encountered by the negative pole is eliminated. The bonding strength between the sizing agent prepared by the SBR and a negative pole current collector (clutch gold) is significantly increased, the dosage is less than that of the common formulation and the compaction ratio of the pole piece is improved; the lithium battery prepared by the negative pole piece guarantees the gram capacity development of active substances (graphite), simultaneously has small internal resistance and excellent cycle performance, and can be charged and discharged repeatedly.

The invention discloses an unmanned aerial vehicle real-time tension detection device and a detection method thereof, and belongs to the technical field of force measurement. The unmanned aerial vehicle real-time tension detection device comprises a first fixed sleeve, a second fixed sleeve, an installing base, a motor fixing seat, a tension sensor, a motor, a vibration reduction spring and a propeller, wherein the motor and the propeller are fixed on the motor fixing seat; the first fixing sleeve is connected with a machine body; the second fixing sleeve is internally sleeved or externally sleeved onto the first fixing sleeve and is provided with a position limiting device in the axial direction; the motor fixing seat and the second fixing sleeve are in rigid connection; meanwhile, the motor fixing seat is connected with one end of the tension sensor through the vibration reduction spring; the other end of the tension sensor is fixed on the installing base; the installing base is fixed onto the machine body. The non-circular sleeve type design is used, so that the reverse twisting force generated when the motor and the propeller work can be counteracted; the free movement can be performed in the tension direction; the tension detection function is realized.

The invention relates to a method for preparing a thermal control coating on the surface of aluminum alloy through ultrasonic pulse electro-deposition, in particular to a preparation method of preparing a composite oxidation film with the low solar absorptivity / hemispherical emissivity ratio on the surface of aluminum alloy. The preparation method comprises the following steps that 1, pretreatment is conducted on the surface of the aluminum alloy; 2, anodizing is conducted on the aluminum alloy; and 3, the oxidized aluminum alloy is subjected to ultrasonic pulse electro-deposition to prepare silicon dioxide sol, then, the surface of the aluminum alloy is cleaned with distilled water and dried, and a low-absorptivity high-emissivity thermal control coating on the surface of the aluminum alloy is obtained. The solar absorptivity of the coating is 0.10-0.20, the hemispherical emissivity of the coating is 0.80-0.95, and the thermal control coating which is low in solar absorptivity and high in hemispherical emissivity has good performance.

The invention discloses an axial magnetic fluid dynamic seal structure. The axial magnetic fluid dynamic seal structure is characterized in that a shaft is arranged in a hollow shell; at least three permanent magnets are fixed between the excircle of the shaft and the inner wall of the shell in parallel; two sides of each permanent magnet are each provided with a pole shoe; a flow choking piece is only arranged at the center of the inner circular surface of at least one of two adjacent pole shoes of the permanent magnet in the middle position, and a first preset gap is formed between the flow choking piece and the shaft; first sealing elements are only arranged on the outer circular surfaces of the two pole shoes on the outermost side in the plurality of pole shoes; a magnetic fluid accommodating sealed space is formed between the pole teeth and the shaft, and a second preset gap is formed between each pole tooth and the shaft; magnetism isolating pieces are fixed to the axial outer sides of the two pole shoes on the outermost side in the plurality of pole shoes correspondingly; end covers are arranged at two ends of the hollow shell correspondingly; second sealing elements are arranged between the end covers and the shaft in a covering manner; and when the shell is vacuumized, the magnetic fluid accommodating sealed space is filled with a magnetic fluid, so that sealing is formed between the shaft and the pole teeth, and the first preset gap is smaller than the second preset gap.

The invention provides a process for electroplating sand nickel on an automobile heat-dissipation grating. The process comprises the following steps: 1), oil removal; 2), expansion; 3), roughening; 4), reduction; 5), preimpregnation; 6), activation; 7), dispergation; 8), electroplating. According to the process, an electroplating pretreatment process for a plastic base material is improved, the whole process is environment-friendly and nonhazardous, chemical plating is not required to be used since a specially-made sand nickel electroplating solution is used, the operation is easier, the process stability is improved, the wastewater treatment is simple, the production time is greatly shortened, a hanging tool is not required to be replaced in the production process, and the production efficiency is greatly improved.

The invention provides a sand nickel electroplating process for an automobile door handle. The sand nickel electroplating process comprises the following steps of (1) degreasing; (2) expansion; (3) alligatoring; (4) reduction; (5) preimpregnation; (6) activation; (7) dispergation; and (8) electroplating. According to the sand nickel electroplating process, a treatment process of a plastic substrate before the electroplating is modified, and the whole process is environmentally friendly and nonhazardous. Special sand nickel electroplating liquid is adopted, and chemical plating is not needed, so that the operation is easier; the process stability is improved; the waste water treatment is simple; the production time is greatly shortened; no rack needs to be replaced in the production process, so that the production rate is greatly increased.

Urease-producing microbes including Sporosarcina antarctica U R 5 3, Sporosarcina koreensis UR47, Sporosarcina sp. UR31 and Bacillus lentus UR41 were preserved in China General Microbiological Culture Collection Center on March 16, 2012, with the preservation numbers of CGMCC No.5916, CGMCC No.5915, CGMCC No.5913 and CGMCC No.5914 respectively. The method for preparing high-strength microbial mortar by using the urease-producing microbes comprises the following steps of: carrying out fermentation culture on the above four microbes and microbes including Sporosarcina pasteurii and Terrabacter tumescens in a fermentation culture medium to obtain a bacterial solution; and filling the bacterial solution, a fixative solution and a gelling solution into a sand particle system in batches to form microbial mortar of which the highest strength can reach 55MPa. The mechanical properties of the microbial mortar are superior to those of a cement base material; compared with a cement lime material with equivalent strength, the microbial mortar is higher in splitting tensile strength; the rigidity of the microbial mortar is similar to that of cement lime mixed mortar but far smaller than that of concrete; the fatigue load tolerance and cyclic loading capacity of the microbial mortar are higher than those of the cement base material; and an artificial sandstone is an inorganic material, and is not easy to age like organic materials including epoxy resin and the like.

A method for enabling agaric to go out of small holes at agaric cultivating time specifically comprises the steps of preparing cultivating materials according to the conventional method, selecting a fungus bag which is made of good materials and is thin and strong in tension, using a method free of a neck ring to bag the cultivating materials, punching in the middle of the fugus bag at bagging time, jacking a plastic bag on fugus materials into the hole in the middle, plugging the hole with a cotton plug, sterilizing, inoculating and culturing fungus according to the conventional method, piercing a plurality of holes in the periphery of the fungus bag filled with hypha, and finally conducting fungus outlet management according to the conventional method. Trough the method, the fungus bag which is good in quality and strong in tension is used, the affinity of the fungus bag and the hypha is good, bagged materials can not separate easily, the occurrence of diseases and insect pests can be reduced, and the output can be improved. Through piercing holes, the method further solves the problems that according to a traditional fungus cultivation method, hypha in an upper portion is much in moisture loss and can age easily, bagged materials separate easily, and fungus outlet is influenced. Produced fungus is a single piece, free of roots, dark in color, 30%-50% higher than larger-piece fungus in market price, and remarkable in economic benefit.

The present invention relates to a composition comprising reclaimed oil and a liquid anti-aging agent. The liquid anti-aging agent comprises (a) a hindered phenolic primary antioxidant; (b) a phosphite ester auxiliary antioxidant; and (c) a hindered amine light stabilizer. The invention provides the anti-aging agent product for stabilizing reclaimed oil for the first time, and the product is a liquid formula, is convenient to produce and use, and can effectively improve the discoloration problem in the reclaimed oil storage and transportation process.

The present invention relates to a clamp used for at least one board component, comprising: a first clamp part and a second clamp part, wherein the clamp parts are mutually adjustable relatively between an open position and a clamping position used for the board component; and at least one elastic body moulding part arranged between the two clamp parts, wherein the elastic body moulding part comprises an area which has a U-shaped cross section and is used for peripheral embedding board components. According to the clamp of the present invention, the elastic body moulding part has a clamping section, when the clamp is in the clamping position, the clamping section is clamped between the two clamp parts.