39results about How to "Reduce the chance of rust" patented technology

The invention discloses an air conditioner outdoor unit shell manufacturing method. The method includes the following steps that 1, a bottom plate (1), a front left panel (2), a front right panel (3) and a top cover plate (4) are manufactured, wherein the front left panel (2) comprises a front left panel body and a left side plate bent to one side, the front right panel (3) comprises a front right panel body and a right side plate bent to one side, and one side of the front left panel body and one side of the front right panel body are buckled to from a front panel of a shell; 2, the bottom plate (1), the front left panel (2), the front right panel (3) and the top cover plate (4) are buckled and fixed through screws. By means of the method, the shell can be fully positioned and buckled, the number of the screws is very small, meanwhile, assembly gaps and segment differences are easy to control, and strength can be guaranteed.

The rust-proof butterfly valve casting comprises a casting body, and the surface of the casting body is treated through a surface treating agent; the surface treating agent is prepared from the following components: dodecenylsuccinic acid, pentaerythritol phosphate, polyvinyl chloride paste resin, hexahydrophthalic acid diglycidyl ester, isopropanol, p-toluenesulfonic acid and a metal deactivator. The preparation method of the rust-proof butterfly valve casting comprises the steps of preparation of the surface treating agent and coating of the surface treating agent. In the application, a mixed product of dodecenylsuccinic acid and pentaerythritol phosphate has a relatively long hydrocarbon chain and an active phosphate group, and can be complexed with metal to form a compact monomolecular protective film, so that corrosion media are prevented from invading; the film forming quality is improved by the polyvinyl chloride paste resin with plasticizing performance; the hexahydrophthalic acid diglycidyl ester with high toughness contains polar groups, so that the affinity of the surface treating agent and metal is improved, the overall performance of a film layer can be improved, and the corrosion resistance of the treated butterfly valve casting is improved.

The invention discloses a splashing prevention structure applicable to a spraying water tank. On the basis of a traditional cooling water tank, a water tap is welded to the lower portion of an air outlet, it is ensured that a transverse partition plate opening of the water tap is connected and matched with a channel port of the air outlet, and the two sides of the water tap are tightly welded to awater pan of the water tank. Air is downwards blown to the water pan along a long round hole channel between an air drying tube and the water tap, most of water drops fall on a water block board andthen flow to the water pan, a small amount of water drops and steam encounter resistance of the water block board along with air, sheer off and then are upwards discharged along channels on the two sides of the water tap, the water drops and steam fall onto the water pan of the water tank under multiple blocking of water tap grid trays, and air can be smoothly discharged out of the water tank along the zigzag channels of the water tap, so that air and water are separated from each other. The splashing prevention structure can blow the surfaces of pipes dry thoroughly, the rusting probability of a pipe cutting saw in the next procedure is reduced, the service life of a production line is prolonged, and the production cost is saved.

The invention discloses a system for treating rust on the inner walls of tube parts in batches. The system comprises a rack, motors, acid liquor spray heads and oxygen spray heads; the rack is provided with a base, the base is provided with a plurality of fixing bases used for fixing tube bodies, a sliding rod perpendicular to the base is arranged at one end of the base, and a fixing rod capable of vertically moving along the sliding rod is arranged over the base; the motors are fixedly installed on the fixing rod and correspond to the fixing base one to one, a rotation shaft is installed on an output shaft of each motor, the lower end of each rotation shaft is provided with a plurality groups of axially-symmetrical elastic devices, one end of each elastic device is provided with an aluminum block, the pressure of the aluminum blocks to the inner walls of the tube bodies can be guaranteed under the action of the elastic devices, and under driving of the motors, the rotation shafts drive the aluminum blocks to rotate along the inner walls of the tube bodies; the acid liquor spray heads are used for spraying acid liquor to the inner walls of the tube bodies; and the oxygen spray heads are used for spraying oxygen to the inner walls of the tube bodies. According to the scheme, the problems that in the prior art, the rust removing effect is poor, and the efficiency is low can be effectively solved.

The invention discloses a scaffold for building construction bearing, and relates to the technical field of building equipment. The scaffold includes a main shaft. The main shaft is provided with a plurality of mounting holes in the axial direction of the main shaft. The main shaft is provided with a plurality of connecting pieces evenly distributed in the axial direction of the main shaft, and fixing holes are formed in the connecting pieces; and the connecting pieces are provided with main pipes and auxiliary pipes, limiting pieces are fixed to the ends, close to the main shaft, of the mainpipes, and the auxiliary pipes are fixedly connected with the limiting pieces. According to the scheme, the structure is simple, installation is stable, the oxidation of air to the position between pipe fittings and the connecting pieces can be reduced, meanwhile, the range of the pipe fittings can be adjusted, and the purpose of adjusting the angle of the pipe fittings is realized.

The invention belongs to the technical field of angle steel and at least relates to support angle steel. The support angle steel comprises a body and connecting ends at two ends of the body. The body comprises a bent face, a support face as a bearing face and an angle steel edge connecting with the bent face and the support face. From one side of the angle steel edge to the other side of the angle steel edge, a first bent segment to the nth bent segments are sequentially arranged on the bent face, to be specific, the n is 2 or 3, and a 90-segment angle is formed between every two adjacent bent segments. With a certain deformation allowed, the support angle steel is good in the bearing capability.

The invention discloses a closed galvanizing method for stamping two ends of a steel pipe. The steel pipe comprises a pipe body, and stamping ends are formed at the left and right ends of pipe body after preparation is finished. The closed galvanizing method for stamping two ends of the steel pipe sequentially comprises the steps of stamping the right end of the pipe body, so that the right end of the pipe body is closed, and a stamping end is formed; putting the pipe body into electroplating solution for galvanizing, wherein the electroplating solution in the pipe body is poured out from the left end of the pipe body after galvanizing is finished; and stamping the left end of the pipe body, so that the left end of the pipe body is closed, and the stamping end is formed. The method has the advantage that the pipe body is not rusted in a long time.

The invention provides a municipal embedded type adjusting drainage device capable of preventing sundries from adhering and blocking, and relates to the technical field of municipal drainage devices.The problems that the drainage normality is easily affected by sundries due to the fact that sundries are easily accumulated on a filter screen in the using process, the sundries adhering to the filter screen are difficult to clean, and threads for transmission are easy to rust after being in contact with water for a long time are solved. The municipal embedded type adjusting drainage device capable of preventing sundries from adhering and blocking comprises a casing pipe; a sealing seat is welded to the casing pipe, a drainage pipe is sleeved with the casing pipe, and an adjusting structure is welded to the casing pipe. Due to the fact that a cutter is welded to the outer wall of the casing pipe, the cutter makes contact with a base plate when the drainage pipe slides rightwards by 10 cmalong the casing pipe, the sundries hung on the drainage pipe are in a shearing state at the moment, and therefore, the sundries connected to the drainage pipe in a sleeved mode can be automatically sheared and removed in the sealing process of the drainage pipe.

The invention discloses a method for storage after spraying of an agricultural semi-trailer, and relates to the technical field of improvement for automobile machining equipment. The storage chamber is characterized by comprising a placement chamber, wherein the placement chamber is provided with an inlet-outlet channel; an inlet-outlet door is formed in the inlet-outlet channel; an opening-closing door is formed in the junction of the inlet-outlet channel and the placement chamber; air draft pipes are arranged above the placement chamber; the air draft pipes are connected with an air draft machine; an air inlet pipe is arranged on the side surface of the placement chamber; the air inlet pipe is connected with an air blast machine; an illuminator is arranged on the inner wall of the placement chamber; a roaster is arranged in the inlet-outlet channel; an air blower is arranged aside the opening-closing door; and an air sucker is arranged below the air blower. The method disclosed by the invention is reasonable, reasonable in structure, convenient to use, and convenient and fast to operate.

The invention discloses a strip steel passivation tank for fine blanking material production and a passivation method thereof. According to the passivation method, a low temperature passivation tank and a high temperature passivation tank are arranged in sequence; strip steel, which has been acid-washed and cleaned, is made to go through the low temperature passivation tank and the high temperature passivation tank in sequence; the low temperature passivation liquid and the residual pickling solution on the surface of the strip steel carry out neutralization reactions, the residual pickling solution is removed, the surface antirust goal is realized; after the strip steel goes through the high temperature passivation liquid, the strip steel obtains a certain temperature, after the strip steel is taken out of the high temperature passivation liquid, the water on the surface of the strip steel evaporates automatically; the happening rate of rust generation on the surface of the strip steel is further reduced; the surface quality during the strip steel production process is improved, and the requirements of users are met.

The invention discloses string-cutting equipment for juice-liquid separation type recovery processing of a birch board. The string-cutting equipmentstructurally comprises a cutting body, a cutting positioning baffle, an assembly box, a trapezoidplate, a collecting cylinder, a bottom supporting seat, and a controller, the controller is installed on the front side of the cutting body and connected with the cutting bodyin a locked mode, the assembly box is arranged on the rear side of the cutting body, the assembly box and the cutting body are welded, thecutting positioning baffle is arranged onthe upper part of the assembly box, and connected with the assembly box in a locked mode. When the string-cutting equipment is in use, through an arranged compound cutting collecting mechanism, the string-cutting equipment can solve the problem that since birch wood is juicy, a great deal of wood juice can be produced in the string-cutting process and reserved on a cutting board and saw webs, is not prone to being cleared, and consequently rust of the saw webs and a motor bearing is easily caused, birch tree juicehas a unique effect, andresource waste is prone to being caused by direct clearing of the birch tree juice;and according to the string-cutting equipment for juice-liquid separation type recovery processing of the birch board, birch tree juiceresources can be effectively utilized,and clearing troubles of liquid adhesion of the bearing and the saw webs are reduced.