6results about How to "Uniform height" patented technology

The invention discloses a method for preparing a high-performance C17510 copper alloy strip, and belongs to the technical field of copper alloys. The method comprises the steps that raw materials are prepared according to the components and the mass percent of the C17510 copper alloy, and the prepared raw materials are added into a vacuum induction melting furnace in batches for vacuum induction melting; a two-stage cooling temperature control casting mold continuous casting technology is adopted, and the obtained melt is poured into a casting blank at the speed of 35-45 mm / min; the casting blank is heated to 900-930 DEG C, heat preservation is conducted for 8-20 h, then hot rolling is conducted, and a hot-rolled strip is obtained; and the hot-rolled strip is sequentially subjected to primary cold rolling, continuous solution treatment, secondary cold rolling and aging treatment. According to the method, high uniformity of alloy components is achieved, and the stability and uniformity of the mechanical property of the strip are remarkably improved.

A large steel wire raceway bearing heat treatment method relates to the technical field of bearing heat treatment, and comprises the following steps: S1, the inner ring, the outer ring, two rows of steel balls and two steel wire raceways are assembled into a bearing assembly, and the bearing assembly is fixed on a rolling device; wherein the two steel wire raceways are clamped and fixed on the inner ring and the outer ring of the bearing assembly in a non-welding manner, each steel wire raceway is made of a steel wire bent into a ring, and a reserved gap is reserved between the two ends of the steel wire; S2, at least two groups of electromagnetic induction heaters are uniformly arranged on the outer side of the circumference of the bearing assembly. The heat treatment method realizes stress release and heat compensation by designing a special steel wire raceway structure, solves the problems of uneven heating of multi-material assembly, insufficient gap cooling, easy deformation and cracking, and stress concentration of integrated quenching, realizes overall quenching after assembly, eliminates soft belt from the source, and significantly improves hardness uniformity, quenching layer consistency, assembly precision and service life.

The invention relates to the technical field of fluid control and testing, and discloses a wide-area flow range multi-gas online mixing system and a control method thereof, and the wide-area flow range multi-gas online mixing system comprises a first gas path channel used for conveying basic fuel gas; the second gas path channel is used for conveying inert gas; and the third gas path channel is used for conveying high-activity additive gas. Through a large-flow metering branch, a small-flow metering branch and a low-flow-resistance straight-through branch which are connected in parallel in a first gas path channel, a second gas path channel and a third gas path channel, the purpose of adapting to large-span flow change including main and auxiliary gas switching from trace gas to large gas in each path is achieved; within a large-span gas internal combustion engine fuel low calorific value range and under the condition of different gas components and proportions, pressure backward flowing or main gas extrusion can be avoided through main pipeline switching, path control and different mixing port structures, and the mixing precision is ensured.

This invention relates to the field of land consolidation and development technology, and in particular to a land leveling device and method with adjustable functions. The leveling method involves first determining a reference horizontal plane, then dividing the farmland into m*n blocks. The bucket passes through n rows of farmland sequentially along a first direction, recording the distances h1 to hn between the reference horizontal plane and the blade. Based on the data h1 to hn, the average distance h between the blade and the reference horizontal plane when in n rows of farmland is obtained. Δh is measured based on the soil volume in the bucket and the farmland area. (h-Δh) is the distance between the target leveling surface and the reference horizontal plane. The bucket height is adjusted to maintain the distance (h-Δh) between the blade and the reference horizontal plane. The process continues along a second direction, passing through m rows of farmland sequentially, completing the farmland leveling. The leveling method provided by this invention facilitates the determination of the target leveling surface and is more conducive to agricultural cultivation and irrigation drainage.

The utility model discloses an anti-drop agricultural product production transfer device which comprises a moving trolley body, the lower surface of the moving trolley body is fixedly connected with a mounting plate, the lower surface of the mounting plate is rotatably connected with a rotating shaft, the lower surface of the rotating shaft is fixedly connected with a mounting seat, and moving wheels are mounted in the mounting seat. An extending plate is fixedly connected to the outer surface of the mounting base, a damper is fixedly connected to the upper surface of the extending plate, a spring is arranged on the damper, a sliding groove is formed in the moving trolley body, a sliding block is slidably connected into the sliding groove, and a scraping rod is fixedly connected to the outer surface of the sliding block. Impact caused by uneven road surfaces can be effectively absorbed, bumping of the trolley in the moving process is reduced, the stability and the damping effect are improved, shaking of agricultural products in the transportation process is reduced, the falling risk is reduced, and the safety of the products is protected.

The utility model discloses a rare earth calcining kiln trolley return track relates to rare earth calcining equipment technical field, including the head assembly of return track, back and forth limit switch subassembly, automatic hooking and unhooking subassembly, intermediate bracket subassembly and the tail assembly of return track, when working, head assembly provides power, and intermediate bracket subassembly restricts chain deviation through the positioning guide wheel, and the weighing roller is with rolling friction support chain, and automatic hooking and unhooking subassembly realize trolley hooking and unhooking with chain, and the stroke is controlled to limit subassembly, and the tail assembly supports chain tail, and this structure greatly reduces friction through intermediate bracket subassembly and prevents deviation, and the operation stability is improved, and multiple groups of bracket are arranged at intervals and height -adjustable, and support evenly, and adapt to multiple sites, and be applicable to the efficient conveying of rare earth calcining kiln trolley.