2226 results about "Stainless steel material" patented technology

This ferritic-austenitic duplex stainless steel material has a composition containing, in terms of mass, at most 0.100% of C, 0.05-1.50% of Si, 0.05-2.00% of Mn, 4.00-9.00% of Ni, at most 0.050% of P, at most 0.0040% of S, 23.0-30.0% of Cr, 0.100-0.250% of N, 0.01-2.00% of Cu, 0.50-2.50% of Mo, at most 0.100% of Al, and at most 0.200% of Nb, with the remainder consisting of Fe and impurities, wherein: a DF value represented by expression (1) of DF=7.2(Cr+0.8Mo+0.78Si)-8.9(Ni+0.03Mn+0.72Cu+22C+21N)-44.9 (in the expression, the element symbols represent the contents (mass%) of the respective elements) is 45.0-70.0; and an austenite phase satisfies relational expression (2) of (0.8Cr)2+2Ni+7Mo+30Cu+30N≥340 (in the expression, the element symbols represent the contents (mass%) of the respective elements).

Alloy elements are reasonably matched, N and nitrides are added to form elements such as tungsten W, vanadium V, niobium Nb, cobalt Co, rare earth RE and the like for microalloying smelting, a forged and rolled material finished product is subjected to proper heat treatment, and the stainless steel subjected to heat treatment has good heat treatment performance through metallographic observation. According to the stainless steel, nanoscale carbides are separated out in a solid solution state, and fine particles mainly containing nitrides are dispersed and separated out in crystals in a thermodynamic state, so that the material is strengthened and does not diffuse to a crystal boundary, and the room-temperature mechanical property and the high-temperature mechanical property of the material are greatly improved; and when the stainless steel material produced by the method is used for manufacturing related products, the thickness of the stainless steel material can be reduced, and the overall input of the stainless steel material is greatly reduced, so that the large-scale application of noble metal strategic resource nickel is saved, and the aims of saving resources, energy and investment are fulfilled.

The invention belongs to the technical field of nondestructive testing, and particularly relates to a full-matrix microscopic ultrasonic leakage defect three-dimensional reconstruction method. According to the leakage defect three-dimensional reconstruction method, precise positioning and three-dimensional shape reconstruction of tiny complex defects in the austenite thin-wall stainless steel material are achieved, and technical support is provided for leakage micropore detection and three-dimensional representation of the austenite thin-wall stainless steel material. The leakage micropore three-dimensional reconstruction method comprises the following steps: recording an A-Scan original signal and position information of each path point to obtain full-matrix microscopic ultrasonic data; taking the minimum envelope entropy as an optimization target, performing variational mode decomposition and reconstruction on the A-Scan original signal of each path point, and calculating to obtain an optimal solution of a variational model; performing two-dimensional mask extraction on the processed full-matrix microscopic ultrasonic data to generate C scanning images with different depths; extracting to obtain two-dimensional defect edge masks under different depths; and carrying out splicing and volume rendering on a two-dimensional defect edge masking result.

A high-strength stainless steel waterproof coiled material and a method for preparing same. The high-strength stainless steel waterproof coiled material sequentially comprises, from bottom to top, a stainless steel material, a first bonding layer, a waterproof layer, a second bonding layer, and an isolation film. The raw materials of the first bonding layer comprise the following components in parts by weight: 80-90 parts of butyl rubber, 10-30 parts of polypropylene, 20-30 parts of filler A, 12-18 parts of a tackifier, 0.2-0.5 part of a coupling agent, 8-12 parts of a softener, 1-2 parts of stannous chloride, 1-3 parts of a vulcanizing agent, and 2-3 parts of an accelerant. The tackifier is composed of polyurethane and o-ethoxyphenyl isocyanate. The first bonding layer and the second bonding layer have the same raw materials. The high-strength stainless steel waterproof coiled material solves the problems in existing stainless steel waterproof coiled materials that bonding and stripping strength are low, and bonding and stripping strength decline significantly after soaking in water.

A ferrite-austenite duplex stainless steel material having a composition containing, by mass, 0.001 to 0.050% of C, 0.01 to 0.50% of Si, 1.0 to 4.5% of Mn, 0.050% or less of P, 0.030% or less of S, 1.5 to 3.5% of Ni, 19.6 to 24.0% of Cr, 0.01 to 1.00% of Mo, 0.01 to 1.20% of Cu, 0.010 to 0.090% of N, less than 0.130% of C + N, and the balance of Fe and impurities. The ferrite-austenite duplex stainless steel material has a metal structure in which the value of Md represented by formula (1) is 50.0-150.0 DEG C and the austenite phase is 25-49 vol%. In addition, the value of Md, which is represented by formula (1), of the austenite phase is 35.0-100.0 DEG C. Md = 551-462 (C + N)-9.2 Si-8.1 Mn-29 (Ni + Cu)-13.7 Cr-18.5 Mo (1) In the formula, the element symbols represent the content (mass%) of each element.

The utility model relates to the technical field of grinding, in particular to a grinding device for processing rhizoma polygonati raw materials, which comprises a stainless steel grinding box, a grinding table for grinding rhizoma polygonati is arranged in the grinding box, and the bottom of the grinding table is connected with a discharging mechanism for discharging ground materials. The grinding table is composed of a first table body and a second table body, a first driving mechanism used for driving the second table body up and down is arranged on the inner wall of the bottom of the grinding box, and a second driving mechanism used for driving the second table body to rotate is arranged on the upper portion of the grinding box; the first driving mechanism comprises a driving roller rotationally arranged below the second table body, and a concave area is arranged on the surface of the driving roller. According to the polygonatum sibiricum grinding table, the to-be-ground polygonatum sibiricum materials at the end opening position of the grinding cavity can be conveniently drawn into the grinding cavity to be ground while the grinding effect of the grinding table is not affected, and therefore the grinding efficiency of the polygonatum sibiricum materials is further improved.

The utility model relates to the technical field of valve installation assemblies, in particular to a combined safety gasket for valve sealing. According to the technical scheme, a cylindrical main body sealing combination column is included, the main body sealing combination column is made of stainless steel materials, and an all-through assembly combination connecting hole is formed in the center of the main body sealing combination column. Arc-shaped first limiting matching plates which are integrally formed and evenly distributed in the circumferential direction are arranged at the center position, in the height direction, of the interior of the assembly combination connecting hole, and second assembly limiting columns which are distributed in the circumferential direction are arranged at the lower end of the assembly combination connecting hole; a circle of second limiting matching plate is arranged at the position, located at the lower end of the first limiting matching plate, in the assembling combination connecting hole. The utility model has the advantages that: when in use, through the two groups of limiting structures arranged inside, the end parts of pipeline components of which the two ends are matched can be inserted and combined, the stop matching effect can be achieved during assembly, and the position stability during installation is better.

A slide fastener slider, includes: a slider body; a puller, and a lock pin. The lock pin is made of a stainless steel material. A black oxide film is formed on a surface of the lock pin. The surface of the lock pin has brightness L* satisfying 31.70≤L*≤35.90, and a* of a value satisfying −0.708≤a*≤1.929, the brightness L′ and the a* of the value according to definitions in a CIELAB color space defined in JIS Z8781-4 (2013).

The invention discloses a corrosion-resistant stainless steel pipe and a preparation method thereof, and application of the pipe in marine engineering, and belongs to the technical field of stainless steel materials, and is used to solve the technical problem that the corrosion resistance and antifouling performance of stainless steel in the prior art need to be improved; wherein the preparation method of the corrosion-resistant stainless steel pipe comprises: adding epoxy-modified titanium dioxide and 2-aminoethyl methacrylate to anhydrous ethanol, stirring, adding hydrochloric acid aqueous solution, heating, reacting, and obtaining modified titanium dioxide; adding epoxy-modified carbon quantum dots and modified titanium dioxide to the hydrochloric acid aqueous solution, heating, reacting, and ending the reaction, filtering, washing, and drying to obtain epoxy-modified carbon quantum dot grafted modified titanium dioxide; the corrosion-resistant stainless steel pipe prepared by the invention not only has good corrosion resistance and antifouling performance, meets the application of the pipe in marine engineering, but also has good weather resistance and durability, is conducive to prolonging the service life, and reduces the cost of later maintenance.

The invention discloses a stainless steel material gear machining system, and relates to the technical field of gear machining. Accurate positioning and feeding of a gear blank are achieved through the rotary positioning pin and the feeding electric cylinder; the cutting wheel rotates at a high speed to complete tooth root cutting, and high-pressure airflow immediately cleans scrap iron on a cutting edge; the closed protective cover is matched with the scrap blocking cover and the scrap guiding pipe to guide scrap iron to the cooling liquid pool in a centralized mode. And internal air pressure is released to drive the air wheel and the rotary impeller disc, so that the cooling liquid forms rotary flow, scrap iron is concentrated and deposited, secondary pollution or pipeline blockage of the scrap iron is prevented, and the gear machining efficiency and quality are greatly improved.

The invention relates to the technical field of metal materials, in particular to a negative enthalpy duplex stainless steel material with high strength, high plasticity and high corrosion resistance and a preparation method. The negative enthalpy duplex stainless steel material is Fe Cr N < c > Mo < d > Mn < e > C < f > Si < g > Ti < h > Al V < j >; wherein a, b, c, d, e, f, g, h, i and j respectively correspond to the mass percentage of each element, a is equal to 60-70 wt%, b is equal to 15-20 wt%, c is equal to 10-15 wt%, d is equal to 0-5 wt%, e is equal to 1-5 wt%, f is equal to 0.015 wt%, g is equal to 0-1 wt%, h is equal to 0-3 wt%, i is equal to 0-0.5 wt%, and d, g, h, i and j are all not equal to 0. The series of negative enthalpy duplex stainless steel materials structurally contain ferrite and austenite, and the microscopic structure and the mechanical property of the alloy can be regulated and controlled by adjusting the proportion of different metal elements. The series of negative enthalpy duplex stainless steel materials show high-strength and high-plasticity mechanical properties. Meanwhile, the negative enthalpy duplex stainless steel material shows excellent corrosion resistance.

The invention discloses a stainless steel material for a food-grade straw and a preparation process of the stainless steel material, and relates to the technical field of stainless steel material plating. The silver coating and the antibacterial coating are arranged on the surface of the stainless steel material, and the stainless steel material has good wear resistance and antibacterial performance through the action of the double protective layers. Sulfonated polyphenylene sulfide is added into a silver plating solution, a plating layer is formed after electroplating, the surface of a stainless steel material is not prone to being scratched, the wear resistance of stainless steel is improved, quaternary ammonium salt modified tea polyphenol-nano-silver composite particles are added into the antibacterial coating, and through the synergistic antibacterial effect of quaternary ammonium salt, tea polyphenol and nano-silver, the wear resistance of the stainless steel material is improved. The broad-spectrum antibacterial property is realized, and the efficient antibacterial effect is achieved.

The air inlet and return pipe comprises an air inlet and return pipe body and end nuts connected to the two ends of the air inlet and return pipe body, the air inlet and return pipe body is of a bilateral symmetry structure, and internal threads are arranged on the inner circumferential surfaces of the end nuts connected to the two ends; the air inlet and return pipe body is of a double-layer structure, the outer layer is a woven mesh made of stainless steel, and the inner layer is a fluoroplastic hose. End supports are respectively arranged at the joints of the two ends of the air inlet and return pipe main body and the end nuts, and are used for connecting the air inlet and return pipe main body and the end nuts; the length of the end portions of the two sides of the fluoroplastic hose is slightly larger than that of the woven mesh, and a turnup structure is formed at the end supporting position so that a sealing structure can be formed when the end nut is in threaded connection with other parts, the flexibility of the air inlet and return pipe of the pulse tube refrigerator is guaranteed, vibration can be greatly reduced, meanwhile, gas flow resistance is reduced, and working efficiency and refrigerating capacity are improved.

The invention relates to the technical field of solar photo-thermal utilization, in particular to a photo-thermal power station fused salt circulation system and a regulation and control method.The system comprises light condensation and heat collection units which are connected in parallel, and a hot fused salt module comprises a hot fused salt main pipe and a hot fused salt tank which are arranged in a low position; the cold molten salt module comprises a high-terrain cold molten salt mother pipe, a low-position cold molten salt tank and a mother pipe communicating pipe for connecting the high-terrain cold molten salt mother pipe and the low-position cold molten salt tank, and the cold molten salt tank, the mother pipe communicating pipe, the hot molten salt mother pipe, the light condensation and heat collection unit and the cold molten salt mother pipe are sequentially communicated and circulate back to the cold molten salt tank to form a salt filling circulation path; the cold molten salt tank, the cold molten salt mother pipe, the light-gathering heat-collecting unit, the hot molten salt mother pipe and the hot molten salt tank are sequentially communicated to form a heat storage path, and the light-gathering heat-collecting unit, the hot molten salt mother pipe, the mother pipe communicating pipe and the cold molten salt tank are sequentially communicated to form a salt dredging path. The scale of hot molten salt pipelines needing expensive stainless steel materials can be reduced, the matched electric heat tracing and heat preservation requirements are synchronously reduced, and the material cost and the construction complexity are remarkably reduced.

The utility model discloses a bean grinder which comprises a grinding mechanism and a driving mechanism, the grinding mechanism comprises a grinding seat, a grinding cutter set and a powder storage bin, the grinding cutter set comprises a fixed grinding cutter and a movable grinding cutter, the fixed grinding cutter is arranged in the grinding seat, the grinding seat is connected with a movable cutter positioning seat, the movable grinding cutter is rotationally connected to the movable cutter positioning seat, and the movable cutter positioning seat is connected with the driving mechanism. A bean grinding cavity used for containing beans to be ground is formed in the position, located above the powder grinding cutter set, of the powder grinding base, the powder storage bin is connected to the lower end of the powder grinding base and used for bearing powder ground by the powder grinding cutter set, the powder grinding base is further connected with a connecting shaft driving the movable powder grinding cutter to rotate, and the driving mechanism is connected with the connecting shaft to drive the movable powder grinding cutter to rotate. And the movable cutter positioning seat is provided with a wear-resistant sheet which is in frictional contact with the movable grinding cutter. According to the bean grinder disclosed by the utility model, the wear-resistant sheet which is in frictional contact with the movable grinding cutter is arranged on the movable cutter positioning seat, and the wear-resistant sheet can be made of a stainless steel material, so that the wear of the movable cutter positioning seat can be reduced, the service life of the grinding mechanism is prolonged, and the bean grinder is simple in structure and low in cost.

The invention provides a smooth wire coaxial laser cladding method for a valve sealing surface, which is characterized in that a wire for smooth wire coaxial laser cladding, which has the diameter of 1.2-1.6 mm and is suitable for valve substrates made of carbon steel and stainless steel, is obtained through a bending-powder feeding-rolling sealing-diameter reducing process on the basis of optimal design of chemical components of a powder core wire. Afterwards, annular light spots are used for conducting preheating treatment on the powder core wire before laser cladding, meanwhile, double annular light spots with independently-adjustable middle core power / ring core power are adopted for conducting coaxial laser cladding forming on the powder core wire, the single-layer cladding thickness reaches 2-4.5 mm, the splashing phenomenon is eliminated, and the stability of a molten pool is improved; and high-quality and high-efficiency surface hardening treatment of the sealing surface of the valve is realized.

The utility model provides a stainless steel pipe convenient to install, and particularly relates to the technical field of stainless steel pipes, the stainless steel pipe convenient to install comprises a stainless steel pipe body, a connecting mechanism and an installing mechanism, and a butt joint pipe is integrally formed at one end of the stainless steel pipe body. The stainless steel pipe body is inserted into the insertion pipe of the other stainless steel pipe body, so that butt joint of the two stainless steel pipe bodies is more convenient, the butt joint pipe extrudes the elastic piece in the insertion process, one end of the limiting plate abuts against the interior of the fixing groove, and the limiting plate deforms to be close to the elastic piece through the arrangement of the arc-shaped face; the elastic piece and the limiting plate are made of high-elasticity stainless steel materials and have good rebound resilience, after the butt joint pipe is completely inserted into the inserting pipe, the elastic piece and the limiting plate rebound and are clamped into the clamping groove, one side of the limiting plate is tightly attached to the inner wall of the clamping groove, and therefore the butt joint pipe and the inserting pipe are fixed, pre-fixing of the two stainless steel pipe bodies is completed, and welding of workers is facilitated.

The embodiment of the invention provides a breather valve with a damper. The breather valve aims at solving the problem that a valve disc is frequently opened and closed under the conditions of a long ventilation pipeline and wide ventilation flow. The breather valve comprises a pressure valve and a vacuum valve, a pressure valve disc is controlled to move through a damper, quick opening and slow closing are achieved, impact between the valve disc and a valve seat is reduced, and the spark risk is reduced. The damper controls the valve disc to move through the damping hole in a throttling mode and has the characteristic of different damping forces in different directions. Vulcanized rubber is arranged on the lower surface of the valve disc to prolong the service life of the sealing face, and the valve seat is made of aluminum bronze to prevent sparks. Under abnormal conditions, the pressure valve disc can be forcibly opened through the pull ring to supplement or release pressure. The filter screen cover is made of stainless steel, and the air suction port outer cover is detachable so as to facilitate maintenance. The overall design improves the safety and durability of the breather valve.

The utility model relates to the technical field of car manufacturing, in particular to a four-side finish paint tool. The four-side finish paint tool comprises a fixing hook, a supporting plate is arranged on the top of the fixing hook, and the fixing hook is located on the left side of the bottom of the supporting plate. The tool is held by a hand, the fixed hook is aligned with a first positioning hole of a vehicle door and installed in the first positioning hole of the vehicle door, the tool rotates around the first positioning hole of the vehicle door, the movable hook slides into a second positioning hole of the vehicle door, the tension spring tensions the movable hook, and therefore the tool is fixed to the vehicle door. Then the automobile door is closed, the high-temperature-resistant magnet is attracted to the automobile door spigot, the effects of assisting in spraying the finish paint on the automobile door and protecting the finish paint are achieved, and the automobile finish paint quality is effectively improved; all parts, except for the high-temperature-resistant magnet, the magnet protective sleeve and the cushion block, of the tool are made of stainless steel, so that the tool is prevented from rusting, and the influence of the tool body on a paint surface is reduced to the minimum.

The invention discloses a piping assembly and heating and ventilation equipment. The piping assembly comprises a first piping and a second piping, the first piping is constructed to be a transmission pipe on a refrigerant circulation loop, and the second piping is constructed to be an inlet connecting pipe or an outlet connecting pipe of a refrigerant container on the refrigerant circulation loop; the first piping comprises a first piping main body and a first connecting part which are connected together, the second piping comprises a second piping main body and a second connecting part which are connected together, and the first connecting part and the second connecting part are connected together; wherein the first piping main body is made of stainless steel, at least part of the first connecting part is made of copper or copper alloy, the second piping main body is made of steel, and the connecting part of the second connecting part and the first connecting part is made of copper or copper alloy. The piping assembly is low in welding difficulty.

The invention discloses an underwater electrical interconnection equipment manufacturing technology, and aims to provide an underwater wet-plugging electric connector modularized oil injection device and a vacuum auxiliary oil injection method. The technical scheme is characterized in that the underwater wet-plugging electric connector modularized oil injection device comprises a precise oil injector, a multifunctional pressing plate and a flange locking module; the precise oil injector is a cylindrical body made of a stainless steel material, a through hole is coaxially formed in the center of the precise oil injector, an oil injection connecting hole coaxial with the through hole is formed in the top of the precise oil injector, and the oil injection connecting hole is communicated with the through hole. A side hole which is perpendicular to the axis of the through hole and is communicated with the through hole to form a connecting channel is formed in the bottom of the jack oil bag so as to be communicated with the jack oil bag and convey oil to the jack oil bag; the method is suitable for the technical field of underwater electrical interconnection equipment manufacturing.

The present invention provides a stainless steel material which has high strength, excellent overall corrosion resistance and stress corrosion cracking resistance in a supercritical corrosive environment, and excellent low temperature toughness in an extremely low temperature environment. A stainless steel material according to the present disclosure has the chemical composition set forth in the description, and has a microstructure in which Fn1 defined by formula (1) is 150.0 or more, Fn2 defined by formula (2) is 24.0 or more, and which is composed of 30.0-85.0% by volume of a ferrite phase and 0.1-40.0% by volume of a retained austenite phase, with the balance being made up of a martensite phase. The yield strength is 552-758 MPa, and the amount of precipitated V in the stainless steel material is 0.005-0.130 mass%.　(1): Fn1 = 576.5 - 2660.7 × C - 7.8 × Cr - 11.3 × Mo - 20.9 × Ni - 10.6 × Cu (2): Fn2 = 2 × Cr + 2 × Mo + 19 × V + 28 × N - 887 × C

The utility model discloses a high-altitude fruit picker, including a rod body, a handle, a disc, a cutting disc and a cloth bag; one end of the rod body is connected to the handle, and the other end is connected to the disc; the disc is sleeved with the cutting disc on the top and connected to the cloth bag on the bottom; the upper end of the disc is provided with an annular slice, the slice and the cutting disc are provided with notches corresponding to each other, the cutting disc is provided with a plurality of arc-shaped notches, and is fixed on the disc by screws and notches; one side of the cutting disc is provided with a steel wire rope, and the steel wire rope passes through the rod body to connect the handle. Compared with the prior art, the utility model has the following advantages: the rotation of the cutting disc can be controlled by grasping the handle, so as to achieve the purpose of high-altitude fruit picking, and the operation is simple and practical; a cloth bag is designed on the disc, so that multiple fruits can be picked at one time, and the efficiency is high; the overall structure is simple, and the main material is composed of lightweight stainless steel and steel wire rope, which is light in weight and low in production cost.

The utility model discloses a composite anti-sticking coating with a Ni-Al framework, a stainless steel material and a coating tool. The composite anti-sticking coating comprises a steel material layer, a Ni-Al alloy skeleton layer and an anti-sticking polymer layer, the Ni-Al alloy framework layer is arranged on the upper surface of the steel material layer; the anti-sticking polymer layer is attached to the upper surface of the Ni-Al alloy skeleton layer; the Ni-Al alloy skeleton layer is provided with a porous structure; the porosity of the Ni-Al alloy framework layer ranges from 10% to 50%. The thickness of the Ni-Al alloy framework layer ranges from 100 micrometers to 500 micrometers. According to the scheme, the strength of the anti-sticking coating and the binding degree of the anti-sticking coating on steel can be improved, and therefore the problems that an organic anti-sticking polymer coating is low in strength and prone to abrasion and falling off are solved.

The utility model discloses a special-shaped stainless steel vacuum heat preservation barrel which comprises a barrel cover and a barrel body, the barrel cover and the barrel body are both made of stainless steel materials, the barrel cover and the barrel body are matched to form a special-shaped square barrel structure, the barrel cover and the barrel body are each provided with a vacuum layer, a front clamping piece is arranged on the front side of the barrel body, a rotating clamping piece is arranged on the rear side of the barrel body, and a fastening silica gel strip is arranged on the barrel cover. And the fastening silica gel strip is matched with the front clamping piece and the rotary clamping piece. By means of the design, the special-shaped stainless steel vacuum heat preservation barrel is safer, better in space utilization and more convenient to use, the barrel cover and the barrel body are each provided with a vacuum layer, and the heat preservation performance is high.

The invention discloses a trowel face shaping and repairing method and device, and particularly belongs to the technical field of beauty masks, the trowel face shaping and repairing device comprises a wearing mask, a cold compress panel and a wrapping mask, wearing assemblies are connected to the two sides of the wearing mask, and a first organ through hole is formed in the surface of the wearing mask; the wrapping mask is arranged on the surface of one side of the wearing mask, the bottom of the wrapping mask is rotatably connected with the bottom of the wearing mask, a second organ through hole is formed in the surface of the wrapping mask, a protruding edge is arranged on one side of the second organ through hole, and the protruding edge is arranged around the second organ through hole; the cold compress panel is detachably arranged in the wrapping mask, and the cold compress panel is made of a stainless steel material. The detachable cold compress panel is used in cooperation with the wearing panel and the wrapping mask, the comfort and use convenience of a user are fully considered, self-service face care is more convenient by adopting a simplified cold compress structure, and effective cold compress repair of a scraped face is achieved.

The invention provides a viscose-based short fiber solid felt wet forming process and system, and relates to the technical field of solid felt wet forming, and the process comprises the following steps: immersing a wet felt blank into an adjustable overflow sizing tank, applying a phenolic resin glue solution, removing redundant glue solution through a stainless steel suction box, then feeding into a multi-section curing oven, and drying and curing in sections at 120-200 DEG C to obtain the viscose-based short fiber solid felt. The humidity in the multi-section curing oven is controlled to be 10%-30%. The wet felt blank is fed into a multi-section curing oven, the material gradually adapts to the curing environment in the preheating section and is prepared for subsequent curing, the main curing section is rapidly heated through a natural gas burner, the main curing process of the material is achieved, and it is ensured that the performance of the material is stably improved, and the material is slowly cooled in the cooling section, so that internal stress caused by sudden temperature drop is avoided; optimal treatment can be achieved in all stages, the product quality is effectively guaranteed, and the problems that the temperature control precision of a conventional curing oven is poor, and the material buckling deformation risk is increased are solved.

The invention relates to the technical field of heat exchange devices, and discloses a stainless steel heat exchange plate for concentrate drying and an assembling structure thereof, through the arrangement of a clamping assembly, when a plate sheet is maintained, a driving rod is rotated in the forward direction or the reverse direction, so that the driving rod drives a cylindrical pressing block to drive a movable clamping plate to clamp the plate sheet, and assembling is rapidly completed; or the driving rod drives the cylindrical pressing block to drive the movable clamping plate to loosen the sheet bar to quickly complete disassembly, so that the time required for maintenance is greatly saved, the working efficiency is improved, the sheet bar is made of stainless steel, the sheet bar has extremely high corrosion resistance, and due to the fact that the stainless steel has high strength and hardness, the service life of the sheet bar is prolonged. The plate can be used for a long time in a harsh environment and is not prone to deformation or damage, and therefore the service life of the plate is prolonged.

A high-chlorine compound fertilizer granulation kiln lining protection mechanism comprises a horizontally-arranged granulation kiln outer cylinder, a plurality of steam nozzles arranged at intervals in the axial direction of the outer cylinder are arranged in the outer cylinder, the steam nozzles extend to the position close to the outer cylinder in the radial direction of the outer cylinder, and the inner wall of the outer cylinder is covered with a rubber lining. Annular ribs made of stainless steel are arranged at the positions, corresponding to the steam nozzles, of the inner wall of the outer barrel, the annular ribs are arranged in the circumferential direction of the inner wall of the outer barrel, the sides, close to the shaft core, of the annular ribs in the radial direction are inner, the sides, away from the shaft core, of the annular ribs are outer, and the inner sides of the annular ribs exceed the rubber lining; the inner side of each annular rib is provided with a stainless steel extension portion extending along the two axial sides of the outer cylinder, the inner side face of each annular rib and the inner side faces of the extension portions on the two sides jointly form an annular check ring, and the outer sides of the extension portions are attached to the rubber lining. The lining of the granulation kiln can be effectively protected, and the service life of the lining of the granulation kiln can be prolonged.

The invention discloses an easy-to-clean electric catching oil remover, and particularly relates to the technical field of rubber additive product industrial waste gas treatment, the easy-to-clean electric catching oil remover comprises an electric catching oil remover support, a cleaning water tank support, a low-pressure nitrogen end, an oil-containing waste gas end, a low-pressure steam end, a water source end, a waste water end and a purified waste gas treatment device; in the cleaning stage, steam is introduced into the low-pressure steam end to heat water in the cleaning water tank main body, and meanwhile, the water source end conveys a water source to form cleaning liquid; cleaning liquid uniformly washes accumulated oil on the surface of a honeycomb electrode tube through a washing spraying opening which is made of a stainless steel material and has a nozzle aperture of 1mm and a spraying angle of 120 degrees downwards in a rotary spraying manner, and the uniform and powerful spraying manner can thoroughly remove oil stains on the surface of an electrode, so that electrode blockage caused by oil stain residues is avoided, and the service life of the electrode tube is prolonged. And the whole cleaning process does not need to be stopped, so that the accumulated oil of the honeycomb electrode can be cleaned on line without stopping, the continuous and efficient operation of the electric capturing oil remover is ensured, and the production efficiency is improved.