62results about How to "Solve cracking" patented technology

The invention discloses an etching solution and a preparation method and an etching method thereof, and belongs to the technical field of microelectronics and display panel manufacturing. The etching liquid comprises the following components in percentage by mass: 50-70% of phosphoric acid, 5-30% of acetic acid, 5-15% of nitric acid, 0.1-0.5% of a water-soluble polymer, 0.05-0.3% of a boron-containing compound, 0.05-0.5% of an etching control agent and the balance of water. The water-soluble polymer is selected from one or more of water-soluble polymers containing a hydroxyl group, an amide group, an ether bond or a pyrrolidone group. The etching solution contains a specific water-soluble polymer, a protective layer can be formed on the surface of the photoresist, attack of high-concentration acid to the etching solution is effectively inhibited, and the cracking problem is avoided; meanwhile, through the synergistic effect of the boron-containing compound and the azole etching control agent, the etching rate, the slope angle and the key size loss can be accurately controlled, and therefore the excellent etching morphology meeting the requirement is obtained.

The invention relates to the technical field of alloy preparation, particularly provides a 650 DEG C high temperature resistant titanium-based composite material plate, and further provides a preparation method of the plate. The titanium-based composite material plate resistant to the high temperature of 650 DEG C, provided by the invention, is prepared from the following chemical components in percentage by mass: 6.0 percent to 7.0 percent of Al, 1.0 percent to 3.0 percent of Zr, 0.5 percent to 2.0 percent of Mo, 0.4 percent to 1.0 percent of Nb, 0.4 percent to 1.0 percent of W, 0.1 percent to 0.4 percent of Si, 0.4 percent to 0.7 percent of B, 0.01 percent to 0.10 percent of C and the balance of Ti and inevitable impurities. According to the titanium-based composite material component system provided by the invention, a vanadium element which is easy to generate interface reaction at high temperature is abandoned, and refractory metal elements such as niobium and tungsten are adopted to cooperate with a ceramic reinforced phase formed by boron, carbon and the like, so that the high-temperature performance and the thermal stability of the material are improved; meanwhile, by controlling the content of molybdenum, aluminum and other elements within a specific interval, the hot working performance of the material is remarkably improved while high strength is maintained, and the contradiction between insufficient high-temperature performance and poor hot working performance of a traditional titanium-based composite material is effectively solved.

The application relates to the technical field of nodular column iron pipe processing, and discloses a self-anchored pipe socket welding ring welding device based on construction and an operation method thereof, which comprises a push plate, a self-anchored nodular cast iron pipe and a copper hoop, one end of the top of the push plate is fixedly connected with an electric telescopic table, the output end of the electric telescopic table is fixedly connected with a mounting frame, and the inner wall of the mounting frame is fixedly connected with a first motor. The welding gun arranged at the top of the assembling block reciprocatingly performs slow overlay welding between the two copper hoops under the slow rotation of the first motor, and the application further solves the problem that, in the use process of the traditional self-anchored pipe socket welding ring welding device, when special-sized pipelines are needed, the self-anchored nodular cast iron pipe often needs to be taken to a designated processing factory for processing, which is not only troublesome for the back-and-forth transportation, but also difficult to timely perform secondary processing on the pipe according to the construction demand, so that the pipeline throughness cannot be guaranteed.

This invention discloses a samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal material, its preparation method, and its applications. The samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal material belongs to the monoclinic crystal system, has a space group of Cm, and a chemical formula of Sm. 0.3 La 0.1 :Y 0.6 Ca4O(BO3)3 has a second harmonic response intensity of 0.89 × KDP, and exhibits transmittance exceeding 80% in the 500–1000 nm and 1600–2400 nm wavelength ranges. It also has a strong absorption peak in the 1000–1600 nm wavelength range. Therefore, the samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal can be considered as a nonlinear optical crystal material with broad application prospects in the field of optics.

The application provides a manufacturing method of a hydraulic support overall bending type side guard, and specifically comprises the following steps: providing a special steel plate for a side guard; performing primary cutting on the special steel plate for the side guard according to a drawing to obtain two side guard to-be-bent pieces which are spliced together, wherein different cutting parameters are adopted for cutting a bending section and cutting an outer shape contour; respectively performing bending on the side guard to-be-bent pieces along different bending lines to obtain a bent piece, wherein a bending down process of the bent piece is divided into three stages, and each stage corresponds to different bending parameters; cutting the bent piece into two parts; and respectively welding a guide rod seat and a rib plate on each part. The method can avoid cracking of the hydraulic support side guard and improve processing efficiency.

The application belongs to the technical field of ceramic materials, and discloses a carbon fiber reinforced silicon carbide ceramic composite material and a direct writing forming method.The direct writing forming method comprises the following steps: mixing carbon fibers and silicon carbide powder to obtain mixed powder, mixing a solvent and an additive to obtain a mixed solution, then mixing the mixed powder and the mixed solution, stirring and defoaming to obtain carbon fiber reinforced ceramic slurry; printing and forming the carbon fiber reinforced ceramic slurry by using a direct writing forming technology to obtain a green body; curing and drying the green body to remove free water of the green body; and performing debinding and sintering on the green body from which the free water is removed.The application can realize one-time forming of a product with a complex structure by using the direct writing forming method, and does not need to use a mold and perform complex densification treatment, so that the preparation cost is low; and the prepared product has no warping and cracking problems, and has good bending strength and fracture toughness.

The present application relates to the leather processing technical field, specifically to a kind of processing technology for improving leather luggage easy to crack, comprising the following steps: S1: selecting raw leather, preliminary treatment is carried out to remove surface impurities, and adjust moisture content;S2: the leather after S1 processing is soaked in natural plant oil solution;S3: the leather after soaking is treated with sound wave;S4: heat pressing treatment is carried out, and the gap between leather fibers is sealed;S5: the leather after heat pressing treatment is cooled and cured;S6: using nanoscale filler, the leather after curing is filled;S7: the leather after filling is treated with final surface coating, and protective layer is formed.The present application, by comprehensive treatment method, significantly improves the flexibility, waterproofness, pressure resistance and crack resistance of leather, while using environmentally friendly materials to optimize cost, effectively prolongs the service life of leather products and reduces environmental impact.

The application discloses a shrinkage-compensating concrete containing acid-free weak base expandable graphite and a preparation method thereof. The concrete comprises cement 200-500 parts, mineral admixtures 50-200 parts, fine aggregate 600-800 parts, coarse aggregate 1000-1300 parts, water 120-200 parts, additive 5-15 parts and acid-free weak base low-temperature expandable graphite 15-75 parts. The expansion trigger temperature of the graphite is 90-100 DEG C, and the pH value is 6.0-8.0. The method comprises the following steps: firstly, uniformly mixing and stirring cement, mineral admixtures, fine aggregate, coarse aggregate and acid-free weak base low-temperature expandable graphite to obtain dry mixture B; secondly, mixing water and additive and adding the mixture into the dry mixture B to uniformly stir to obtain a concrete mixture; and thirdly, forming the concrete mixture, carrying out steam curing after final setting, naturally cooling to room temperature and obtaining the shrinkage-compensating concrete. Therefore, the concrete self-shrinkage can be precisely and efficiently compensated in the steam curing process of the concrete.

The invention provides a novel high-flux component design method of a nickel-based wear-resistant alloy for laser cladding, and relates to the technical field of component design of nickel-based wear-resistant alloys and laser cladding, in particular to a component design method of a nickel-based wear-resistant alloy for laser cladding. The invention aims to develop a wear-resistant alloy material for laser cladding with excellent obdurability by taking Ni60 alloy as an example. In the specific implementation process, firstly, a Vickers hardness (HV) prediction model and a fracture toughness (KIC) prediction model of the nickel-based alloy are constructed; vickers hardness (HV) values and fracture toughness (KIC) values of tens of thousands of alloys are obtained through high-flux thermodynamics calculation, and Pareto alloy components are screened out according to the Vickers hardness (HV) values and the fracture toughness (KIC) values. The core value of the method is that a key component-performance associated data support and a systematic design methodology are provided for efficient research and development and large-scale production of the nickel-based wear-resistant alloy for laser cladding.

This utility model relates to the field of building facade reinforcement technology and discloses a wall insulation reinforcement mechanism. The mechanism includes a cement board with a cement adhesive for connection to the building wall on one side. An anti-deformation mechanism is also provided on one side of the cement board via an anchoring component. The anti-deformation mechanism includes two sets of extruded polystyrene (XPS) insulation boards on one side of the cement board. The XPS insulation boards have installation grooves on their outer sides, with trapezoidal cross-sections. After installing the two sets of XPS insulation boards, a polyurethane foaming agent is sprayed to fill and seal the joints. When temperature changes cause thermal expansion and contraction of the XPS insulation boards and shape memory polyurethane sealing strips, the deformation cavity within the shape memory polyurethane sealing strip provides buffering, preventing rigid compression cracking. The polyurethane foaming agent can slightly expand and contract to maintain the seal, solving the problem of joint cracking caused by temperature deformation of the insulation board.

The invention provides a gallium oxide edge-defined film-fed growth asymmetric growth method and device, and belongs to the technical field of crystal preparation. The invention provides a gallium oxide edge-defined film-fed growth method asymmetric growth method, which comprises the following steps: preheating gallium oxide seed crystals to obtain preheated seed crystals; and seeding the preheated seed crystal from the outermost side of the edge-defined film-fed mold, and then carrying out gallium oxide growth. According to the novel method for asymmetrically growing the gallium oxide by the edge-defined film-fed crystal growth method, the gallium oxide seed crystal is seeded from the outermost side of a die by the edge-defined film-fed crystal growth method, so that the seed crystal and the crystal asymmetrically grow along one side, cracking and twin crystal generation under the seed crystal are avoided, and even if cleavage planes or twin crystal boundaries appear, the cleavage planes or twin crystal boundaries are also generated on the edge of the crystal and are easy to cut off; the crystal cutting efficiency is improved, the ideal diameter is achieved, and the percent of pass is increased.

The invention discloses a plate pre-drawing and dieless mirror image loading composite forming process and a product, and belongs to the technical field of metal component forming and manufacturing. The method is used for solving the problems of cracking, ultra-poor thinning, low dimensional precision and the like in the forming process of the high-strength aluminum alloy thin-wall component with local continuous large-area bulge and local large wall angle characteristics in the aerospace field. According to the method, through two-stage area expansion distribution, the thinning amount of each stage is effectively controlled, and the cracking problem caused by one-time large deformation in a single process is avoided. And mirror images are cooperatively loaded on the local part of the plate to form a three-dimensional stress state, so that the forming limit is improved. And in-mold constraint aging synchronously realizes strengthening and shape righting, and is obviously superior to the traditional process.

The utility model discloses a widening structure for new and old bridges with large height difference, which relates to the field of widening transformation of old bridges and comprises a first bridge body and a second bridge body. The first bridge body embedded steel bars and the second bridge body embedded steel bars are embedded in the tops of the first bridge body and the second bridge body respectively; the first bridge floor cast-in-place layer and the second bridge floor cast-in-place layer are both poured at the top ends of the first bridge body and the second bridge body; the anchoring steel bars are embedded in the top of the second bridge body and located at the bottoms of the second bridge body embedded steel bars, the lightweight concrete precast blocks are arranged at the top end of the second bridge body, and the outer sides of the lightweight concrete precast blocks are matched with the second bridge body embedded steel bars and the anchoring steel bars correspondingly. The lightweight concrete leveling layer is reasonable and reliable in structure, the lightweight concrete precast blocks are adopted to replace a traditional concrete leveling layer, the weight is reduced by 30%-50%, the dead load of the newly-added leveling layer is controlled within 15% of the live load of an original bridge, and the influence on the original bridge structure is remarkably reduced.

The invention discloses a lanthanum ion doped oxygen calcium yttrium borate nonlinear optical crystal material and a preparation method thereof, the lanthanum ion doped oxygen calcium yttrium borate nonlinear optical crystal material belongs to a monoclinic system, the space group is Cm, the chemical formula is La0.1: Y0. 9Ca4O (BO3) 3, the frequency multiplication coefficient is 2 * KDP, the ultraviolet cut-off edge is less than 200 nm, and no absorption peak with the intensity greater than or equal to 0.2 cm <-1 > exists in the range of 200-2500 nm. Therefore, the lanthanum ion doped yttrium calcium oxide borate crystal can be used as a nonlinear optical material with a wide application prospect in the field of optical parameter chirped pulse amplification.

This application discloses a laser welding method and apparatus for suppressing weld cracks in aluminum alloys. The method includes positioning two aluminum alloy parts to form a weld seam extending along a first direction between them; irradiating the weld seam with a Gaussian laser to form a first spot at the weld seam, and moving the first spot relative to the two aluminum alloy parts along the first direction; irradiating the weld seam with a flat-top laser to form a second spot at the weld seam, and moving the second spot relative to the two aluminum alloy parts along the first direction, wherein the second spot and the first spot are sequentially distributed along the first direction; and providing welding wire to the weld seam at the second spot. The laser welding method and apparatus for suppressing weld cracks in aluminum alloys according to the embodiments of this application can solve the problem of weld cracks between aluminum alloy parts.

The invention discloses a concrete curing system and method based on multi-technology fusion, and belongs to the technical field of concrete curing. The problems that an existing concrete curing technology is long in period and single in efficiency are solved. The device comprises a curing box body, a microwave acceleration curing module, a CO2 curing module and a microorganism curing module, wherein the curing box body is sequentially provided with a microwave acceleration area, a CO2 curing area and a microorganism curing area from front to back; the microwave acceleration curing module is arranged in the microwave acceleration area and is used for heating the concrete test piece; the CO2 curing module is arranged in the CO2 curing area and is used for performing pressurized carbonization curing on the concrete test piece; the microorganism curing module is arranged in the microorganism curing area and is used for repairing micro-cracks appearing on the concrete test piece. The concrete test piece curing device is mainly used for curing concrete test pieces.

The present application relates to the technical field of aero-engine assembly, and particularly relates to a locking tool and method for an annular locking piece in a fairing assembly. The locking tool comprises a deformation punch and a locking punch. Four deforming blocks are uniformly distributed on the lower end surface of the deformation punch in a ring shape. A guide slope is arranged on each deforming block. The guide slopes on the deforming blocks are configured to force the side wall of the annular locking piece to synchronously generate a pre-dimple. Two opposite deforming blocks are used to generate a radially inward pre-dimple, and the other two opposite deforming blocks are used to generate a radially outward pre-dimple. Four locking blocks are uniformly distributed on the lower end surface of the locking punch in a ring shape. A guide slope is also arranged on each locking block. The guide slopes on the locking blocks are configured to force the pre-dimple to deform to form a locking dimple. Two opposite locking blocks are used to shape the radially inward pre-dimple, and the other two opposite locking blocks are used to shape the radially outward pre-dimple.

The present application relates to a kind of 37Mn5 small round billet low crack low segregation continuous casting method, and the chemical composition of round billet includes by weight percentage:C:0.35%~0.39%, Si:0.22%~0.32%, Mn:1.35%~1.55%, P≤0.016%, S≤0.008%, Al:0.010%~0.030%, N≤55ppm;Crystallizer copper pipe upper outer wall is equipped with heat insulation plating, from the upper mouth to the lower mouth direction of crystallizer copper pipe, the taper of crystallizer copper pipe decreases from no heat insulation plating place;The solidification of the casting blank in crystallizer is carried out three-stage soft cooling after two cooling zone;It can solve the problem such as subcutaneous crack, center segregation, center loose, developed columnar crystal of φ180mm diameter 37Mn5 small round billet without light press-down equipment, so that round billet surface does not need large area to be directly entered subsequent rolling process after grinding, to realize stable production, improve yield.

The utility model relates to the technical field of SCR catalyst production equipment discloses a net belt kiln cooling structure for SCR catalyst, including the conveyer belt, the conveyer belt side fixedly connected with the net belt kiln, the inner wall of net belt kiln is provided with cooling assembly, the cooling assembly includes a plurality of cooling pipes, a plurality of cooling pipes are located in the inner wall of net belt kiln, the inner wall top of net belt kiln is provided with hard aluminium silicate fibre board, a plurality of cooling pipes both ends are through hard aluminium silicate fibre board and extend to the top of net belt kiln, the top of net belt kiln is provided with connecting pipe no. One, air inlet pipe and air outlet pipe, the both sides of connecting pipe no. One top are fixedly connected with the communication piece no. One and the communication piece no. Two respectively. In the utility model, through setting cooling assembly in the top of net belt kiln, and installing hard aluminium silicate fibre board in the top of kiln inner wall, the effect that the catalyst is indirectly cooled steadily and uniformly is reached, and the reliability and stability of kiln cooling process are enhanced.

The utility model belongs to the technical field of oil pumps, and particularly relates to a novel oil pump with zero initial displacement, which comprises an oil pump body with an oil inlet pipe and an oil outlet pipe, the oil outlet pipe is sequentially communicated with a buffer tank and a first electromagnetic valve, and a backflow pipe for backflow is communicated between the bottom of the buffer tank and the oil inlet pipe. A second electromagnetic valve is arranged on the backflow pipe, a buffering mechanism for buffering media is further arranged in the buffering tank and comprises a plug, a spring and a piston, the plug, the spring and the piston are sequentially installed in the top of the buffering tank from top to bottom, the plug is connected to the buffering tank in a threaded mode, and the spring is connected to the piston in a threaded mode. The oil pump body, the buffer tank and the return pipe which are additionally arranged are matched with the matched pipelines, so that the displacement range is adjusted to be 0-117ml / r, the speed of a product needing to be extruded at a low speed can be accurately controlled, and the problem of cracking of the product is effectively solved.

The utility model discloses a hydraulic expansion mould with a movable mould core, which comprises an upper module and a lower module, the upper module comprises an upper mould, the lower module comprises a lower mould, the upper mould forms an upper mould cavity, the lower mould forms a lower mould cavity, and the upper mould and the lower mould form a lower mould cavity. The upper mold cavity and the lower mold cavity are opposite to each other and are combined to form a final forming cavity for accommodating a preformed pipe blank, so that a final forming pipe blank is formed through stamping; a pitched roof insert capable of floating up and down is arranged at the position, located in the middle of the lower mold cavity, in the lower mold, and the end face of the abutting end of the pitched roof insert is matched with the lower surface of the bulging part of the finally-formed pipe blank in a concave-convex mode. According to the utility model, the two ends are fixed without floating, and the middle part is movably stamped through the inclined top insert and is expanded through high-pressure liquid, so that a pipe blank is completely attached to the die, the cracking problem caused by non-uniform wall thickness is effectively avoided, and the rejection rate is reduced.

The application belongs to the technical field of continuous casting and particularly relates to a high-nitrogen Fe-Ni-based alloy protective slag. According to mass percentage, the high-nitrogen Fe-Ni-based alloy protective slag comprises SrO: 14-16%, CaF2: 11.5-13.5%, SiO2: 24-26%, Na2O+K2O: 12-14%, B2O3: 7-9%, Al2O3: <1%, MgO: 8-10%, La2O3: 10-12%, and the rest is carbonaceous material and inevitable impurities. Through accurate slag system design and component regulation, the protective slag has excellent performances of rapid slag formation, high lubrication and phased heat control, effectively solves the crack problem in the high-nitrogen Fe-Ni-based alloy continuous casting process, and meets the actual needs of the large-scale production of the continuous casting.

This invention belongs to the field of bearing manufacturing technology, specifically relating to a bearing stamping and forming device. It includes a guide hole penetrating the die base along a first direction, and a punch that can switch between two workstations within the guide hole. This decomposes the stamping process into two stages: In workstation one, the external angle formed by the first and second working surfaces first applies pressure to the center of the bearing end face, forcing the material to flow outwards preferentially, avoiding curling defects caused by material concentration at the edges; In workstation two, the first working surface switches to be parallel to the end face and uniformly presses the area defined by the guide hole, causing the previously directional material to be regularly compacted within the closed cavity, ultimately forming a dense, defect-free positioning lip. This invention fundamentally solves the problems of cracks and air gaps caused by lack of edge support and poor material flow in existing technologies, significantly improving the forming quality and product yield of the positioning lip.

This application relates to a heat dissipation substrate and its manufacturing method, a power semiconductor module, and a power converter. Embodiments relate to a heat dissipation substrate for power semiconductors, a power semiconductor module including the same, a power converter including the same, and a manufacturing method thereof. The method for manufacturing a heat dissipation substrate for power semiconductors according to an embodiment may include the following steps: preparing a first ceramic substrate; forming a bonding metal layer having a first thickness by sputtering on one or another surface of the first ceramic substrate; disposing a metal plate on the first ceramic substrate on which the bonding metal layer can be formed; and performing a hot pressing process while disposing the metal plate. In the hot pressing process step, the bonding metal layer may react with the first ceramic substrate to become an oxide bonding layer.

The present application relates to the technical field of electroslag remelting smelting, and particularly relates to a ternary slag system for electroslag remelting steel production and a use method thereof, the ternary slag system comprises the following components in percentage by weight: CaF2 47% to 53%, CaO 23% to 27%, Al2O3 23% to 27%, and the rest is impurities, wherein TiO2 in the impurities is less than or equal to 0.1%, C is less than or equal to 0.05%, SiO2 is less than or equal to 0.3%, and H2O is less than or equal to 0.50%. The present application designs a new ternary slag system formula by increasing the content of CaO and Al2O3 in the slag system, smelts the titanium-containing steel with a Ti content in the range of 1% to 3% by using the new ternary slag system formula, and can improve the surface quality of the electroslag ingot formed after electroslag remelting, the electroslag ingot surface is free of heavy skin, the ingot yield is improved, the cracking problem in the steel ingot forging process is solved, and the comprehensive yield is improved.

The utility model discloses a tire structure for delaying and preventing groove bottom cracks, which relates to the technical field of tires and comprises a plurality of anti-skid components arranged on the surface of a tire body in an array. A tire tread is arranged on the outer side of the tire body, the anti-skid assembly comprises a plurality of anti-skid grooves, the anti-skid grooves are formed in the surface of the tire tread in a circumferential array mode, a plurality of anti-crack protruding blocks are evenly arranged in each anti-skid groove in an array mode, and a plurality of anti-skid grooves are formed in the two sides of the tire body in an array mode. According to the utility model, the anti-crack bumps which are mutually crossed, connected and fluctuated are designed at the U-shaped groove bottoms of the anti-skid grooves, so that stress concentration caused by deformation of the groove bottoms is prevented, cracks caused by friction between the groove walls and the groove bottoms after deformation of the groove bottoms are avoided, the problem of crack of the groove bottoms in the prior art is solved, and the service life of the tire is prolonged.

The utility model relates to engineering technical field, especially a roof crossbeam and reinforcing structure thereof, including the crossbeam main part that the cross section width is gradually reduced from top to bottom, be provided with first support plate and second support plate on the crossbeam main part, first support plate with second support plate are used for respectively supporting two interval floor slab end, first support plate with second support plate along the crossbeam main part length direction stretch, first support plate with second support plate have spacing to form the drainage groove with the opening in the upper portion between. The utility model has the beneficial effect that first support plate with second support plate have spacing to form the drainage groove with the opening in the upper portion, can directly collect and guide the rainwater that seeps from two interval floor slabs, avoid the accumulated water to contact the reinforcing steel in two side floor slab structure, further avoid the concrete cracking problem caused by the reinforcing steel corrosion.

A kind of composite shoe sole structure and shoe;Composite shoe sole structure includes: bottom pad, intermediate pad and fixed pad;Bottom pad, intermediate pad and fixed pad are connected in one;The upper surface of bottom pad is provided with accommodating groove;The bottom wall of accommodating groove is provided with multiple lower clamping blocks along length direction;Intermediate pad is set to the bottom wall of accommodating groove, and intermediate pad is provided with multiple intermediate holes along length direction;Fixed pad is set to accommodating groove and is set to the upper surface of intermediate pad;The lower surface of fixed pad is provided with multiple upper clamping blocks along length direction;Lower clamping block is limited in intermediate hole, and upper clamping block is limited in intermediate hole.This scheme improves the fixing stability of composite shoe sole structure, and can prevent the mutual sliding between pad and pad to cause the situation that composite shoe sole structure is divided, solve the problem that pad and pad of existing shoe sole structure are cracked when force direction is different.

The utility model relates to high performance lithium iron phosphate electrode material manufacturing technical field, and disclose a kind of manufacturing device of high performance lithium iron phosphate electrode material based on nanotechnology, including conveying frame, the conveying frame one side is fixedly connected with bearing table, the conveying frame top one side is fixedly connected with support.The utility model integrates mixed cylinder, coating head and roll assembly on the same conveying frame structure, realizes the full-process continuous production from slurry mixing, substrate coating to pole piece roll, mixed cylinder is directly connected with coating head by closed pipeline, avoids slurry settlement and viscosity change caused by traditional transfer storage, and main pressure roller is synchronously driven stirring paddle operation by belt pulley, to ensure that slurry mixing uniformity and coating speed dynamic matching, infrared, hot air composite drying system and roll assembly linkage design, make electrode porosity and compaction density can be accurately coordinated control.

The utility model provides a water stop device for post-pouring zone, include: a plurality of prefabricated board, each prefabricated board is in contact sealed with two building body's lateral surface, and a plurality of prefabricated board is sequentially arranged and sealed connection along the extension direction of post-pouring zone and is integrated, and post-pouring zone is covered. The utility model can effectively prevent leakage and rainfall to cause rust to the reinforcement inside post-pouring zone, keep the inside environment of post-pouring zone neat, need not to maintain post-pouring zone, reduce maintenance cost and subsequent construction risk.