13results about How to "Stable hardness" patented technology

A CVT chain plate manufacturing method, relating to the field of chain manufacturing technology, includes the following steps: step (1), design of raw material cross-sectional shape and material selection; step (2), precision stamping; step (3), heat treatment; and step (4), polishing. This invention employs a double-collapsed edge profiled flat steel tooth ring pressure plate precision stamping method, and the collapsed edge of the swing area of ​​the CVT chain plate is reserved with a specific extrusion allowance, significantly improving the dimensional accuracy of the CVT chain plate and enhancing the flexibility and stability of the CVT chain plate rotating around the conical wheel. Simultaneously, this invention designs a complete heat treatment process for the high-carbon alloy steel material of the CVT chain plate, effectively reducing the content of residual austenite on the chain plate surface, making the surface hardness and performance of the chain plate more stable, its wear resistance stronger, and improving the service life of the entire steel belt drive system.

The invention relates to the technical field of fuel particle machines, in particular to a biomass fuel particle machine which comprises a shell, a first extrusion ring and a second extrusion ring. A first extrusion ring is connected in the shell; a plurality of first extrusion holes are formed in the first extrusion ring; the first extrusion ring is attached to the extrusion wheel; a second extrusion ring is connected in the shell; the second extrusion ring is larger than the first extrusion ring in diameter; a plurality of second extrusion holes are formed in the second extrusion ring; and each second extrusion hole corresponds to the position of the adjacent first extrusion hole. The hot air blown out by the hot air blower is blown to the connecting cylinder, so that the connecting cylinder is heated by the hot air, then heat is transferred to the remaining material bars in the connecting cylinder, the temperature of the material bars is increased, preheating of the material bars in the connecting cylinder is achieved, cohesion of the material bars is improved, and the situation that the material bars are broken during cutting is prevented.

The present invention discloses a thin-walled special-shaped aviation oxygen bracket and a preparation method thereof. The oxygen bracket comprises a first plate portion, a second plate portion, a connecting plate portion and a third plate portion. One end of the second plate portion is connected to the first plate portion, and the other end is connected to the third plate portion via the connecting plate portion. A convex column is provided at the bottom end of the first plate portion, and a first convex plate is symmetrically provided near the convex column at the bottom of the first plate portion. A plurality of arched through holes are provided at the bottom of the first plate portion, a plurality of first round through holes are provided at the bottom of the second plate portion, and a plurality of strip holes are provided at the top. A notch is provided at the third plate portion above the strip holes, and a plurality of second round through holes are provided at the portion of the third plate portion located above the bottom surface of the notch. The thin-walled special-shaped aviation oxygen bracket provided by the present invention has a reasonable structural design, is conducive to extrusion molding, reduces the overall production and manufacturing cost, and its mechanical properties can meet the use requirements of the oxygen bracket.

The invention relates to the technical field of roller bits, in particular to an equal-wall-thickness screw motor which comprises an equal-wall-thickness stator, the inner wall of the equal-wall-thickness stator is provided with a linear structure, and equal-thickness rubber is arranged on the linear structure. The engineering plastic is used for injection molding, and after molding, the strength is high, the hardness is high, and the bearing performance is high.

The utility model relates to the technical field of engineering machinery, and discloses an excavator structure capable of increasing the digging force of an excavator bucket, which comprises a machine body, a rotating arm is rotatably connected to the rear side of the top end of the machine body, the other end of the rotating arm is rotatably connected with a conical excavator bucket, and the outer wall of the conical excavator bucket is fixedly connected with a C-shaped steel plate I; an anti-skid pad is arranged on the inner side of the conical excavator bucket, a second C-shaped steel plate is attached to the top end of the outer wall of the anti-skid pad, first bolts are connected to the corners of the outer wall of the second C-shaped steel plate in a threaded mode, and the other ends of the first bolts are connected with the inner side of the conical excavator bucket in a threaded mode. According to the utility model, through the mutual matching of the C-shaped steel plate I, the conical bucket, the C-shaped steel plate II, the non-slip mat, the bolt I, the conical mat, the conical head and the bolt II, the hardness of the bucket teeth is higher, and meanwhile, the length of the bucket teeth is increased, so that the cutting force and the penetrating force of the bucket are improved, and the bucket can enter a hard soil layer or a rock layer more easily.

The present invention relates to the technical field of foaming materials, and discloses a hard silicone foam, including liquid A material and B material; the mass ratio of the A material and the B material is 1:1; the liquid A material includes the following components by weight: 60-100 parts of methyl vinyl siloxane, 5-45 parts of reinforcing agent, and 0.05-3 parts of platinum complex; the liquid B material includes the following components by weight: 0.5-8 parts of hollow microspheres, 0.5-30 parts of hydrogen-containing silicone oil, and 5-25 parts of flame retardant. The present invention also discloses a preparation method of the above-mentioned hard silicone foam: the A material and the B material are mixed and then injected and coated between the upper and lower auxiliary material films, and then calendered and high-temperature foamed and cured to form. The hard silicone foam of the present invention has the advantages of good conformability, small permanent deformation after high-temperature aging, medium hardness and high elasticity, flame retardancy, etc., and can be used for formation, support, module installation buffer protection, etc. in the process of battery cell manufacturing.

This application relates to a nanodiamond radiation heat dissipation coating composition, its preparation method, and the product thereof. It belongs to the field of heat dissipation materials technology. The composition of this application uses silanization modification to solve the problem of nanodiamond agglomeration, resulting in uniform nanodiamond dispersion and long-term storage stability. It uses an organic-inorganic dual resin of silicon-modified polyurethane / inorganic siloxane protease, which balances adhesion, hardness, and temperature resistance, with a temperature resistance ≥600℃. The magma extract dispersant has three functions: dispersion, enhanced infrared radiation, and weather resistance. During spraying, surface drying at room temperature ≤5 minutes, complete curing ≤24 hours, insulation withstand voltage ≥4000V, and UV aging simulated life >10 years.

This invention relates to the field of marine engineering materials and surface engineering technology, specifically to a method for preparing Fe-based multi-element alloy powder with amorphous structure forming capability and laser cladding surface strengthening coating materials. The powder's chemical composition, by mass percentage, includes: Cr: 17%–21%, Mo: 15%–19%, W: 10%–15%, Y: 2%–4%, C: 2%–4%, B: 1%–2%, with the balance being Fe. Compared to traditional Fe-based cladding materials, this invention, by introducing elements such as W and Y and optimizing the proportions of the multi-element system, makes the coating more prone to exhibiting a predominantly amorphous structure under rapid laser solidification conditions, and demonstrates stable corrosion resistance and hardness levels in seawater corrosive environments. The powder system and cladding process of this invention can achieve effective surface protection for key components of marine engineering equipment, exhibiting good engineering applicability and application prospects.

The method for improving the hardness of the martensitic stainless steel after heat treatment is suitable for heat treatment in the quenching stage, and comprises the steps that the martensitic stainless steel is subjected to heat treatment at the temperature of 1120 DEG C in the quenching process stage, the hardness of 1Cr12Ni2WMoVNbN after heat treatment can be stabilized by adjusting the quenching temperature, and the cutting efficiency of products in the cutting stage is improved; and the situation that cutting is not easy due to high hardness is avoided.

The present invention relates to a method for fermenting ham using a composite microecological fermentation agent, and belongs to the technical field of fermented food processing. The present invention uses plant lactobacillus, acidophilus lactobacillus, and utilis candida as a composite microecological preparation to prepare bacterial liquid, adds hawthorn juice and microecology to jointly obtain a composite fermentation agent, and ferments and processes ham, which can improve the color and elasticity of meat muscle fibers, and shorten the fermentation and maturation period of ham to the maximum extent, and has good industrial application prospects.

The invention discloses a PVC stirring machine, and belongs to the technical field of PVC stirring processing, the PVC stirring machine comprises a support frame body, a PVC powder placing hopper is arranged beside the support frame body, a PVC powder suction system is arranged at the top of the support frame body, the PVC powder suction system is connected with the PVC powder placing hopper, a high-temperature stirring system is arranged on the support frame body and located below the PVC powder suction system, and the PVC powder placing hopper is connected with the high-temperature stirring system. The high-temperature stirring system is communicated with the PVC powder suction system; four oil storage tanks are arranged on the supporting frame body, an oil suction system is arranged on the supporting frame body, the oil suction system is communicated with the four oil storage tanks, and the oil suction system is communicated with a high-temperature stirring system; a high-temperature stirring system is arranged on the side of the supporting frame body, a low-temperature stirring system is further arranged on the side of the supporting frame body, the low-temperature stirring system is communicated with the high-temperature stirring system, a waste recycling system is arranged on the side of the supporting frame body, and an operation main table is further arranged on the side of the supporting frame body. The PVC material stirring device can achieve a better PVC material stirring effect.

The invention discloses a double-rib induction quenching device for a steel track shoe. The double-rib induction quenching device comprises a medium-frequency inductor and a positioning device, the medium-frequency inductor comprises a water sprayer, an induction coil, a magnetizer, a fixing plate, a flow guide plate, an insulating plate, an insulating spacer, an insulating sleeve, a circulating water connector and a spraying water connector. The induction coil and the circulating water interface are fixed on the guide plate; the magnetizer is mounted on the induction coil; the fixed plate is fixed on the induction coil; a spraying water connector is arranged on the side wall of the water sprayer; the two circulating water interfaces are connected with the cavity of the induction coil and are used for introducing circulating water into the induction coil for cooling; the water sprayer is fixedly mounted on the fixing plate; and the positioning device is arranged close to an induction coil of the medium-frequency inductor and is used for positioning the steel track shoe. The method has a good effect on strengthening the landing ribs of the medium-carbon alloy steel track shoe with long and short arc-shaped ribs distributed in a staggered manner, and has the characteristics of high processing efficiency, good quality consistency, low labor intensity, low production cost and the like.

The application discloses a simulation rubber material and a preparation method and application thereof. The simulation rubber material is prepared from hydrogenated polystyrene-conjugated diene block copolymer with a dendritic random asymmetric long-chain branched structure as a main base material, filling oil, fillers, colorants and the like to form a rubber material. The simulation rubber material has the advantages of meat-like elasticity, high cohesion and tensile strength, constant hardness and strength under changes of medium and low temperature and time, stable use or storage, good oil fixation performance, low oil permeation rate and constant compression deformation resistance, and the comprehensive physical performance is superior to that of a simulation adult health care tool using TPE as a main material.