Preparation method of upper blade material of shearing machine and shearing test equipment
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A technology of testing equipment and shearing machine, which is applied in the direction of using sound wave/ultrasonic wave/infrasonic wave to analyze solids, etc. It can solve the problems of tool alloy service life disclosure, etc., to ensure processing and basic performance, facilitate testing, and reduce costs.
Active Publication Date: 2022-05-13
马鞍山市申力特重工机械股份有限公司
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[0005]
The technical problem to be solved by the present invention is: on the one hand, solve the service life disclosure in the existing tool alloys;
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[0045] likefigure 1 Shown, be a kind of embodiment of the present invention, a kind of preparation method of blade material on the shearing machine, comprises following processing step:
[0046] Molten steel preparation: add scrap steel pieces, ferrochrome, ferrotungsten, ferromolybdenum, and rare earth silicon to the melting furnace in sequence, then add aluminum wire to deoxidize and alloy the molten steel, and then cast it by investment casting method in the pouring mold , to remove impurities in the electroslag liquid of the casting product installed in the electroslag furnace;
[0047] After removal of impurities, the components of the as-cast billet are calculated by weight percentage: C: 0.74-0.89%, Si: ≤0.37%, V: 0.83-1.25%, W: 0.35-0.45%, Mn: ≤0.45%, Co: ≤0.30%, Ti: 0.27~0.55%, P: ≤0.025%, Cr: 7.3~11.74%, Mo: ≤0.45%, Re: 0.1%, and the rest is Fe; Among them, Re is a rare earth element, which is added to The strength performance is improved.
[0048] Annealing, quenc...
Embodiment 2
[0065] like Figure 3 to Figure 7 , is another embodiment of the present invention. On the basis of Example 1, the recycling of the actual material steel plate 2 is ensured. The actual material steel plate can be a blank that needs to be cut before forging, or needs to be cut. The hardness is compared Small steel plates are used for cutting, and the cut materials need to be recycled. When the steel plate is sheared, it will produce arcs and plastic deformation.
[0066] The correction unit includes a lower pressing piece and a symmetrical pressing roller 11. A conveyor belt 12 is arranged under the lower pressing piece. The conveyor belt 12 is suitable for transporting the sheared material steel plate 3 to the lower end of the lower pressing piece. The lower pressing piece is suitable for The sheared material steel plate 3 is pressed down, and the pressing roller 11 is suitable for straightening the sheared material steel plate 3 .
[0067] The lower pressing part includes a ...
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Abstract
The invention discloses a preparation method of an upper blade material of a shearing machine and shearing test equipment, and belongs to the field of shearing machines. Comprising the following process steps: preparing molten steel: sequentially adding raw materials, namely waste steel parts, ferrochrome, ferrotungsten, ferromolybdenum and rare earth silicon into a smelting furnace, then adding aluminum wires to deoxidize and alloy the molten steel, casting by using an investment casting method in a casting mold, and installing a casting finished product in electroslag liquid of an electroslag furnace to remove impurities; after removing impurities, annealing, quenching and tempering; performing heat treatment after forging; and finally, rough grinding, accurate grinding and polishing are conducted, specifically, all the blanks subjected to heat treatment through A1 or A2 are cut firstly, then basic rough grinding is conducted on the using surfaces to remove most of the allowance of the blanks, then accurate grinding is conducted, and finally the finished blade is manufactured through polishing. On one hand, the problem that the service life of an existing cutter alloy is short is solved, and on the other hand, the service life of the cutter is measured through detection equipment.
Description
technical field [0001] The invention belongs to the field of shearing machines, and in particular relates to a preparation method of a blade material on a shearing machine and shear testing equipment. Background technique [0002] The shearing machine is used for shearing the metal sheet. The shearing machine blade relies on the shearing machine tool holder to cut the metal sheet up and down through the mechanical hydraulic system or pneumatic system, so as to complete the process of shearing the sheet. The blades used in shearing machines are generally required to have strong comprehensive performance. If the performance is not good, it is difficult to shear the plate, and it is easy to deform and chip during the shearing process. [0003] For shearing machine blades, the main factor affecting the performance of the blade is its manufacturing process, including material selection, forging process, heat treatment process, etc. Different processing processes will have a grea...
Claims
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