162results about How to "Reduce contact area" patented technology

The utility model discloses a kind of car sunroof guide rails with buffering noise reduction structure, it is related to sunroof guide rail field, this kind of car sunroof guide rail with buffering noise reduction structure includes the guide rail main body extending along first direction, outwardly extending mounting plate is formed on the guide rail main body one side outer wall, multiple mounting holes are opened on mounting plate, for bolt connection frame, bolt is passed in mounting hole when connecting;This kind of car sunroof guide rail with buffering noise reduction structure forms three-dimensional grid structure by buffer groove and extension groove, main rubber pad absorbs vertical impact, extension rubber pad inhibits longitudinal vibration, double elastic deformation greatly reduces the area of mounting plate contact part after installation with frame, blocks vibration transmission path, rubber ring in the protruding part groove isolates bolt and mounting plate metal contact, eliminates high-frequency friction abnormal sound.

The present application relates to the technical field of agricultural product processing machinery, and discloses a layered and unfolded bearing device for high-temperature steam sterilization of organic white melon seeds, which comprises a device main body connected with a high-temperature steam supply device, and a plurality of layered bearing and conveying assemblies horizontally arranged in the device main body, the layered bearing and conveying assemblies being staggered in the vertical direction, and the discharge end of a preceding layered bearing and conveying assembly being located above the feeding end of a subsequent layered bearing and conveying assembly; the bearing and conveying assembly is provided with a gas-permeable bearing member, the gas-permeable bearing member is provided with steam-permeable holes, and the cross section of the gas-permeable bearing member is in a continuous undulating structure; and a dispersion assembly is arranged between the discharge end of the bearing and conveying assembly and the feeding end of the subsequent layered bearing and conveying assembly, and is used for dispersing the white melon seed materials falling between the layers. The present application ensures that the front and back surfaces of each white melon seed can be uniformly heated by high-temperature steam in the multi-layered and alternating conveying, eliminates the dead angle of material accumulation, and solves the problem of uneven heating caused by single-sided continuous heating.

The utility model relates to the field of LED substrate processing discloses LED substrate heat conducting silicone grease fixture, including fixed frame, the fixed frame is located the top surface of base, the inside fixed installation board of fixed frame, the top surface of installation board is equipped with two fixed holes, the inside fixed metal round plate of fixed hole, the top surface of metal round plate is equipped with a plurality of smearing holes, the top surface of base is detachably provided with the placing plate, the top surface of placing plate is equipped with two containing grooves. In the utility model, scrape the heat conducting silicone grease on the metal round plate, the heat conducting silicone grease will be filled into the inside of smearing hole, through the limitation of smearing hole inside space, can accurately control the amount of heat conducting silicone grease every time smearing, thereby ensuring the consistency of smearing thickness.

The present application relates to the technical field of edible salt, and particularly relates to a green edible salt production process. Technical problems are as follows: the existing technology causes the caking problem of edible salt in the production, transportation, storage and use process due to the zero addition of anti-caking agent. A technical solution is as follows: a green edible salt production process comprises the following steps: A: secondary cooling of finished salt before packaging; the finished salt is sent into a secondary cooler after coming out of a self-made salt device dryer, and the temperature of the finished salt is reduced to close to room temperature through circulating desalted water; B: screening of the finished salt particles cooled in step A, and selection of the oversize material with relatively large particle size and not easy to caking; C: addition of iodine agent into the finished salt cooled and screened in step B; D: storage of the finished salt in step C for a period of time before packaging; E: packaging by using a packaging material with strong blocking property and good sealing performance.

This disclosure provides a photodetector. The detector includes a substrate and, sequentially stacked on the substrate surface, an N-type doped layer, an absorption region, a P-type doped layer, and a converging structure. The first cross-sectional area of ​​the absorption region along the direction parallel to the substrate surface is smaller than the second cross-sectional area of ​​the P-type doped layer parallel to the substrate surface; the surface of the P-type doped layer away from the absorption region is a photosensitive surface. The converging structure is used to focus incident light from the photosensitive surface to the absorption region, so that the photodetector converts the incident light into an electrical signal. This detector can simultaneously achieve high responsivity and high bandwidth.

The utility model discloses a novel roll bending inner chamber filling structure relates to the field of roll -in technology, including device platform, the device platform upper surface is established with the mounting groove, the inboard of mounting groove is provided with filling assembly and pull assembly respectively, the filling assembly is including fixed base, the fixed base upper end fixedly connected with the filling groove, the filling groove lower surface fixedly connected with spring box and is provided with the through groove with spring box upper surface through -setting, the utility model discloses the filling assembly of setting, pull rod and draw a rope realize soft and hard link, thereby realize the matching of product and draw a rope, and the middle position of core mould increases a limit ring and product inner width surface effective flow contact, has reduced product and the cooperation clearance and contact area of filling, has effectively solved the problem of filling local deviation, has effectively improved the work efficiency of filling, has improved practicality.

The utility model belongs to the technical field of LED lighting, specifically a kind of frameless panel lamp for label backlight, including frame, backplate, light guide plate and diffusion plate, frame is provided with two groups of relative arrangement, the side surface of two groups of frame mutually close is provided with mounting groove along the length direction of itself, the groove bottom of mounting groove is provided with light bar, backplate, light guide plate and diffusion plate are sequentially abutment settings, and backplate and diffusion plate are respectively with the two side walls of mounting groove along the length direction of itself abutment, frame is provided with inclined plane at the mounting groove slot edge, inclined plane is arranged in the side close to diffusion plate, and from the direction of mounting groove slot, the cross-sectional area of frame close to the side of mounting groove slot is less than the cross-sectional area of the side close to the groove bottom of mounting groove. The design of the present application through inclined plane reaches the effect of frameless, need not be slotted design in the side edge of diffusion plate, reduce the thickness of diffusion plate, can also enhance the luminous effect of panel lamp.

The invention discloses a steering wheel damping device and a steering wheel damping system, and relates to the technical field of automobile steering wheels. The steering wheel damping device comprises a guide assembly and an elastic piece. The guide assembly comprises a guide piece; the guide piece comprises an annular supporting part abutting against one end of the spring element and a plurality of guide arms which are arranged on the annular supporting part at intervals in the circumferential direction and extend into the mounting hole in the axial direction. When the steering wheel pressing castanet is in a non-stress state, at least part of the guide arms abut against the connecting piece, and elastic deformation occurs under the condition that radial driving force is applied to the guide arms. According to the embodiment, the abutting area between the inner side of the guiding piece and the connecting piece can be reduced, the collision strength between the inner side of the guiding piece and the connecting piece is relieved, and then noise is reduced.

The utility model discloses an intelligent sensor's aluminium oxide base processing device related to sensor preparation technical field, and the middle part of sintering furnace inner chamber is equipped with the baffle, and the sintering furnace inner chamber is separated by left and right and is divided into a plurality of sintering cavities by the baffle, and a plurality of silicon molybdenum heating rods that are arranged on the inner wall of sintering cavity are arranged from top to bottom in the sintering cavity, and the sintering cavity is also equipped with the material frame for placing aluminium oxide base, and the material frame includes pivot, material tray, base and drive walking mechanism, and the pivot that is perpendicular to the base is rotatively driven and installed on the upper portion of base, and a plurality of material trays that are arranged along the pivot axial direction are arranged on the pivot axle body, and a plurality of installation grooves that are arranged in order and are used for vertically clamping and placing aluminium oxide base are arranged on the upper surface of material tray, and the bottom of base is equipped with drive walking mechanism, and the utility model not only can fully and evenly sinter and heat aluminium oxide base, but also can effectively reduce the deformation, warping or cracking of aluminium oxide base during the sintering process.

The utility model discloses a high sharpness injection needle, including needle tube and needle tip, the needle tip adopts three -stage tapering type multi -edge surface structure, and this three -stage tapering type multi -edge surface structure is composed of main cutting part, transition part and micro blade part, the main cutting part includes three symmetrical distribution's first inclined plane, and every first inclined plane bifurcates two second inclined planes to form transition part, and every second inclined plane bifurcates two third inclined planes to form micro blade part, the needle tip surface is equipped with a plurality of micro -groove, and the third inclined plane intersection of on micro blade part forms nanometer -class blade edge, and this blade edge edge is equipped with periodic micro sawtooth. The utility model discloses a needle tip is three -stage tapering type multi -edge surface structure, and the puncture resistance is reduced in stages, and the pain feeling is reduced, sets up micro sawtooth and can reduce the tissue contact area through " point cutting", and the local stress concentration when puncturing, and then delay passivation, sets up micro -groove and can guide the tissue fluid flow, destroys the negative pressure adsorption effect, and improves the needle insertion smoothness.

This invention discloses an eccentric sleeve and a scroll compressor. The eccentric sleeve includes a shaft portion and an edge portion. The edge portion includes a front end edge and a rear end edge disposed radially on the shaft portion. The edge portion is formed by the front end edge extending around the edge of the shaft portion towards the rear end edge. The front end edge and / or the rear end edge are at least partially tangential. By implementing this invention, the front end edge and rear end edge are designed with tangential structures. When the eccentric sleeve rotates, the tangential structures of the front end edge and rear end edge cause them to be tangential to the refrigerant oil. The small contact area between the front end edge and the refrigerant oil greatly reduces the agitation of the refrigerant oil, reduces the generation of eddies, lowers the compressor's power consumption, and thus improves the compressor's energy efficiency.

This utility model discloses a horizontal slide table for an electric vibration test bench, applied in the field of electric vibration test bench technology. The key technical features are: it includes a lower vibration table and an upper vibration table fixedly connected to the lower vibration table; horizontal grooves are formed along the horizontal direction on both the upper and lower vibration tables; a horizontal slide table is slidably connected within the horizontal grooves; a first abutment plate and a second abutment plate are fixedly connected to the bottom of the horizontal slide table on both sides along the sliding direction; a plurality of abutment support shafts for abutting and supporting the first and second abutment plates are evenly and alternately rotatably connected to both sides of the horizontal groove along the sliding direction; and lubrication components for lubricating both ends of the abutment support shafts are provided within the horizontal grooves. The technical advantages are: simple structure and reduced friction.

The application relates to the technical field of pots, and particularly provides a multi-layer anti-sticking pot, which comprises at least two non-sticking layers, the at least two non-sticking layers are stacked in sequence to jointly form a non-sticking pot body, the inner surface of the non-sticking pot body is formed with a scale structure, the scale structure extends and distributes from the center of the non-sticking pot body to the edge, the scale structure comprises a plurality of recessed parts and convex parts formed between the recessed parts, the recessed parts and the convex parts are matched and used for reducing the area of contact with food to be cooked. The at least two non-sticking layers are stacked to jointly form the non-sticking pot body, the anti-sticking property of the pot is improved, the scale structure of the non-sticking pot body reduces the contact area between the surface layer of the pot and the food, physical anti-sticking and chemical non-sticking are realized, and the anti-sticking property of the pot is further improved.

The utility model provides a kind of valve group and compressor of miniaturization reciprocating compressor, it is related to compressor field, to the problem that the temperature of existing small compressor cylinder head is too high, gas flow resistance increases and leads to efficiency reduction, by the offset structure of valve plate on the valve plate subassembly suction hole, enlarge suction valve port flow area, reduce suction resistance, reduce the pressure loss and friction heat in suction process, to reduce suction overheating, from the source to relieve cylinder head overheating problem, allow to adopt smaller size cylinder hole, meet the demand of compressor miniaturization, the valve tongue both sides of suction valve piece are provided with contraction part to form waist, exhaust hole is arranged between two sides waist, adapt to the compact space of miniaturization valve group, suction muffler outlet and cylinder cover keep apart, leave gap, cut off the heat conduction path between cylinder cover and suction muffler, form heat insulation, reduce suction overheating, reduce cylinder head temperature benign cycle, improve miniaturization reciprocating compressor efficiency.

The utility model discloses a kind of anti-deformation diamond saw blades, including base, the rim of base is provided with multiple circumferential array distribution plane, the surface of each plane is provided with two symmetrically distributed insertion cavities, the surface of base is provided with the through hole of insertion cavity, the insertion cavity is inserted with the insertion plate in each, the both sides of insertion plate are located in the through hole and are provided with lug, the surface of lug is provided with wear strip.The utility model is provided with wear strip, so that the both sides wear strip of base are projected from the surface of base, reduce the friction between base and the object to be cut, avoid the phenomenon of "clamping saw", prevent the deformation caused by the wear of base side at the same time, high-quality cut surface can be obtained by using the good grinding property of superfine abrasive.

The utility model provides a source network load storage integrated energy storage cabinet which comprises a cabinet body, a cabinet door, a battery support, a battery box and an electrical assembly, and a battery cavity and an electrical cavity are formed in the cabinet body. A plurality of layers of bearing units are arranged on the battery bracket from top to bottom, accommodating grooves are formed in the bearing units, rolling bodies are arranged at the bottom of the battery box, and the rolling bodies protrude out of the bottom surface of the battery box. According to the utility model, the accommodating groove is formed in the battery bracket, the rolling body is arranged at the bottom of the battery box, and the height of the rolling body protruding out of the bottom surface of the battery box is smaller than the depth of the accommodating groove, so that the contact area between the battery box and the bearing unit can be reduced when the battery box is mounted, the pushing resistance is reduced, and the battery box is easier to mount in place; and no scratch is generated at the bottom of the battery box. And after the battery box is mounted in place, the rolling body is suspended in the accommodating groove and cannot be damaged after being used for a long time.

The utility model relates to heat treatment equipment technical field discloses a stainless steel heat -resisting steel forge piece heat treatment equipment, including mounting panel and the first motor of fixed mounting at the top surface one end of mounting panel, the output fixed with the pivot of first motor, the top surface fixed with horizontal version of pivot, the bottom surface one end fixed with electric telescopic rail of horizontal version, the bottom surface center fixed mounting clamping mechanism of electric telescopic rail, the top surface another end fixed with cold water tank of mounting panel, the fixed connection water pump circulation mechanism of cold water tank outer wall both sides, the clamping mechanism is placed in the just above forge piece to remote control first motor, third motor drive screw column rotates, and the cross slider moves down, the trapezoidal slider will move outward, makes the clamp plate separate, and electric telescopic rail makes the clamping mechanism move down, and third motor drive screw column rotates in the opposite direction, and the forge piece is clamped to rise, because the distribution of several round bosses on the clamp plate, so the contact area of clamp plate and forge piece is reduced, and the clamping effect is strengthened, and the effect that the efficiency is improved and the potential safety hazard is reduced is realized.

This utility model relates to a suspension coil spring coating fixture, belonging to the technical field of coating fixtures. It includes a main hanging rod, with multiple part hook assemblies detachably connected to both sides of the main hanging rod. These part hook assemblies are used to suspend the suspension coil springs. Each part hook assembly includes a V-shaped hook and a connecting block, which are fixedly connected. The V-shaped hook has a V-shaped body and a square cross-section. During suspension, the edges of the square cross-section contact the spring, reducing the contact area between the fixture and the spring, thereby minimizing the impact of the hooking point on the powder coating process. This suspension coil spring coating fixture, by setting multiple part hook assemblies on the main hanging rod, increases the number of springs that can be suspended, thus improving the powder coating efficiency of the coating production line. Simultaneously, by setting the V-shaped hook with a square cross-section, the contact area between the fixture and the spring is reduced, thereby minimizing the impact of the hooking point on the powder coating process.

The utility model discloses a combination oil cylinder and injection molding machine for injection molding machine, this combination oil cylinder includes: injection oil cylinder and seat platform oil cylinder, injection oil cylinder and seat platform oil cylinder are parallel and all along first direction are established, the projection of injection oil cylinder along second direction is first projection, the projection of seat platform oil cylinder along second direction is second projection. In the utility model, first projection and second projection part or completely coincide, can reduce the space that the whole structure of injection oil cylinder and seat platform oil cylinder formed in length direction occupies, so that in the same length interval, injection molding machine can install the seat platform oil cylinder of greater stroke, and the nozzle can completely exit the template when seat platform retreats to the bottom, and maintenance is convenient.

The utility model relates to a kind of boiler cooler heat exchange copper pipe dismounting device, including symmetrically interval arrangement top silk one and top silk two, top silk one and top silk two are provided with tap, tap upper portion is fixedly provided with connecting rod, connecting rod one end is fixedly connected with nut one, nut one is threadedly connected on top silk one, connecting rod other end is fixedly connected with nut two, nut two is threadedly connected on top silk two.The top silk one, top silk two and tap of the present application are set, tap rotation enters the inner cavity of copper pipe to be dismounted, copper pipe inner wall is set on silk, copper pipe and tap become a whole, rotate top silk one and top silk two, nut one and nut two are driven up tap and copper pipe, the dismounting of copper pipe is realized, provide a kind of device capable of realizing quick dismounting copper pipe.Two top silks are used, and flange plate contact area is small, stress is uniform, can be completed operation by single person, simple structure, low in cost, convenient to use.

The utility model relates to a bending pipe auxiliary tool technical field especially relates to a manual tool for metal conduit big bending radius processing, the utility model discloses disc and rotary support structure are equipped with on the upper portion of bottom plate through shaft A, washer and gasket, and can rotate freely around shaft A, be provided with gyro wheel subassembly on rotary support structure, sliding support subassembly is assembled on the bottom plate, and is located disc one side, and the conduit passes through sliding support subassembly and is supported by sliding support subassembly, and the front end of conduit is placed between disc and gyro wheel subassembly and is clamped by both, and rotates rotary support structure and drives conduit to rotate with disc and completes bending work, the utility model discloses technical scheme solves the problem that the existing bending pipe machine in prior art cannot realize the conduit with too big bending radius, and the bending pipe machine manufacturing cost is high, and the bending pipe object is single.

The utility model provides a water conservancy project dredging machine. The water conservancy project dredging machine includes: base, the base top is installed and hoists structure, the base one side wall surface is provided with the frame body structure, the upper side of frame body structure is provided with the dredging equipment, hoists structure includes the cantilever, the bottom of cantilear is hinged with the base upper surface one side edge position, the one end fixedly connected with the guide wheel of cantilever far away from the hinge, the electric telescopic link is hinged between cantilever and base, the fixed frame is fixedly connected on the base upper surface in cantilever one side, the inside rotation of fixed frame is connected with the reel, the surface of reel is wound with the rope and the one end of rope is fixedly connected with reel, the utility model provides a water conservancy project dredging machine has the advantage that worker can flush the float dredging pump conveniently, and can assist the worker to pull and hoist the float dredging pump easily.

The utility model discloses an automatic bag opening machine, including work table, and install on the sewing machine of work table, laser cutting mechanism, the mobile mechanism that can move to the left and right in front and back, at least two material board of circulating feeding fabric, the fixed mechanism of connection in mobile mechanism, folding knife mechanism, positioning mechanism and circulating feeding mechanism are equipped with the open line subassembly on the fixed mechanism, and the open line subassembly bottom is equipped with rack and fabric limiting portion, and the fabric required sewing is clamped between the open line subassembly and fixed component, and through rack and fabric limiting portion carries out double limiting to fabric, and when working, it is more stable, prevents the vibration during sewing process to lead to the unneat of pocket sewing, makes the pocket more neat, beautiful of producing.

This utility model relates to the technical field of processing equipment for instant grain noodles, and discloses an anti-sticking twin-screw extrusion cutter device for instant grain noodles. It includes an extrusion cutter end, with an extrusion die holder engaged on one side of the inner wall of the extrusion cutter end. The extrusion cutter end includes a port frame, with threaded grooves formed around the inner wall of the port frame, and a connecting frame fixed to the top of the port frame. This utility model achieves the production process by connecting the port frame with the discharge port of a twin-screw extruder. In conjunction with the rotation of the rotary cutter on the port frame, the instant noodles formed by the extrusion die can be quickly rotary-cut and discharged. The surface of the rotary cutter is designed with an inclined surface, which forms an angled blade during the rotary cutting process, reducing the contact area with the noodles and thus reducing sticking. Simultaneously, with the assistance of high-pressure air blowing through an air pipe, intermittent air blowing can be used to prevent sticking when it occurs, thus avoiding the impact of subsequent rotary cutting and improving production efficiency.

The invention relates to the technical field of medical auxiliary instruments, in particular to a ureter distortion auxiliary supporting guide wire which comprises an extension guide wire, a position guide wire, a guide wire head and a connecting sleeve seat. The position guide wire is provided with an expansion base ring and at least three sets of plate type expansion assemblies driven by a pneumatic mechanism I. The plate type expansion assemblies drive arc-shaped expansion plates to swing through tooth bars, point type and controllable expansion of the narrow portion of the ureter is achieved, and the problems of mucous membrane damage and complete lumen blockage caused by large-area contact of a traditional air bag are solved. And meanwhile, an air cavity and at least three groups of radial movement positioning assemblies driven by a pneumatic mechanism II are arranged in the guide wire head, and an arc-shaped positioning plate is pushed by a multi-stage telescopic cylinder to extend out in the radial direction to form multi-point contact with the inner wall of the renal pelvis, so that stable anchoring of the guide wire head is realized. The operation injury risk can be effectively reduced, smooth perfusion is guaranteed, and the positioning stability of the guide wire in the renal pelvis is improved.

The utility model discloses a kind of air duct machines, air duct machine includes: cabinet, air inlet and air outlet are formed on two sides of each other of cabinet, and cabinet has bottom plate;Heat exchanger;Fan assembly;Water pan, water pan is located in the lower of heat exchanger in cabinet;First flexible seal, first flexible seal is located between water pan and bottom plate, to fill the gap between water pan and bottom plate;At least one of water pan and bottom plate is equipped with convex rib, convex rib extends along the width direction of air duct machine, and convex rib protrudes from the side of bottom plate and / or water pan towards first flexible seal. According to the air duct machine of the utility model embodiment, the first flexible seal is extruded by convex rib, the sealing between water pan and / or bottom plate and first flexible seal can be improved, and then low-temperature air can be effectively prevented from entering between water pan and bottom plate, to avoid condensate between water pan and bottom plate.

This utility model relates to the field of detergent block production technology, and more particularly to an integrated equipment for detergent block forming and drying. It includes a base, on which an extruder is mounted. A discharge pipe is mounted on the extruder, and a microwave dryer is mounted outside the discharge pipe. A steam exhaust pipe is mounted on the top of the discharge pipe. A printing mechanism is installed on the base, and a U-shaped plate is mounted on the base and located on one side of the printing mechanism. Traction rollers are arrayed within the U-shaped plate, and a cutting and forming mechanism is mounted on the U-shaped plate. A conveyor belt is also installed within the U-shaped plate. This utility model uses an extruder to mix and extrude various raw materials, forming strip-shaped detergent blocks through the discharge pipe. During the discharge process, the microwave dryer quickly and evenly dries the extruded strip-shaped detergent blocks. Compared to traditional hot air drying methods, the microwave dryer can simultaneously heat and dry the detergent blocks inside and out, improving drying efficiency and avoiding the situation where the outside is dry while the inside remains moist.

This utility model relates to the field of aluminum single-panel production technology and discloses a rapid curing device for water-based coatings on aluminum single-panel curtain walls. The device includes a curing box, with hinges fixedly connected to the outside of the curing box, and a box door fixedly connected to the outside of the hinges. A four-corner fixing mechanism is fixedly connected to the bottom inside the curing box, and a heat dissipation and exhaust mechanism is fixedly connected to the outside of the curing box. The four-corner fixing mechanism includes a processing table, with its bottom fixedly connected to the bottom inside the curing box. A drive assembly and a guide assembly are fixedly connected to the inside of the processing table. In this utility model, the four-corner fixing mechanism uses a drive motor and a cross-shaped rotating block to drive the four-corner clamps to clamp the four corners of the aluminum single-panel. Anti-protrusion suction cups provide reinforcement, achieving stable fixing, preventing displacement and protrusion, ensuring accurate positioning, reducing contact area, avoiding indentation damage, improving curing quality, and reducing processing defects.

This utility model discloses a galvanizing anti-deformation fixture structure, including a vertical fixing plate A and a vertical fixing plate B disposed on the right side of the vertical fixing plate A. A U-shaped metal sleeve A is connected to the bottom end of the vertical fixing plate A, with the A-shaped opening of the U-shaped metal sleeve facing to the right. A U-shaped metal sleeve B is connected to the bottom end of the vertical fixing plate B. By adding a bottom-supporting anti-fall device between the U-shaped metal sleeves A and B of the galvanizing anti-deformation fixture, when dealing with large, heavy workpieces, the lengths of the soft steel wire ropes A and B can be adjusted to make the metal bottom plate fit the bottom of the workpiece. Combined with the semi-circular arc-shaped metal support strip, this provides a stable lifting force while preventing damage to the workpiece surface. This device effectively distributes the weight of the workpiece, preventing it from falling and improving operational safety. Simultaneously, the hand-tightening fixing screws allow for flexible adjustment to accommodate different workpiece heights, enhancing the fixture's versatility, reducing tooling replacement costs, and ensuring efficient and stable galvanizing processes.