Self-protecting medicine cored wire material for large-scale hot-forging die sandwich layer and preparation method thereof

A technology of core wire material and hot forging die, which is applied in the field of welding material manufacturing, can solve the problems of low bonding strength, poor elastic deformation and stress diffusion ability of the sandwich layer, poor forming quality of the sandwich layer and poor welding process performance, etc., to achieve stacking The effect of low welding efficiency, heavy welding workload and high surfacing efficiency

Active Publication Date: 2017-10-03
CHONGQING UNIV +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the present invention is: to provide a self-protecting drug core wire material for the sandwich layer of a large hot forging die, which solves the extreme high temperature and heavy load of the existing sandwich layer materials. Under working conditions, the elastic deformation and stress diff

Method used

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  • Self-protecting medicine cored wire material for large-scale hot-forging die sandwich layer and preparation method thereof
  • Self-protecting medicine cored wire material for large-scale hot-forging die sandwich layer and preparation method thereof
  • Self-protecting medicine cored wire material for large-scale hot-forging die sandwich layer and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0023] 1) Dry the raw materials at 120°C for 1 hour respectively, use 80-mesh sieves to sieve the dried raw materials, and store the sifted raw materials at 80°C for later use;

[0024] 2) Weigh the drug core raw materials in the drug core wire according to the following proportions: carbon element content 0.32%, silicon element content 0.4%, manganese element content 1%, phosphorus element content 0.01%, sulfur element content 0.01%, chromium element content content of 2.2%, nickel element content of 2.1%, molybdenum element content of 1.4%, vanadium element content of 16%, and the balance of iron, the weighed raw materials were added to a mixer and mixed for 2 hours to obtain drug core powder;

[0025] 3) Obtain the H08A steel strip for ultrasonic cleaning and drying, process the cross section of the H08A steel strip into a U-shaped structure, and then add the drug core powder obtained in step 2) into the H08A steel strip with a powder feeder and then roll it Forming, and th...

Embodiment 2

[0032] 1) Dry the raw materials at 120°C for 1 hour respectively, use 80-mesh sieves to sieve the dried raw materials, and store the sifted raw materials at 80°C for later use;

[0033] 2) Weigh the drug core raw materials in the drug core wire according to the following proportions: carbon element content 0.24%, silicon element content 0.2%, manganese element content 0.8%, phosphorus element content 0.01%, sulfur element content 0.01%, chromium element content content of 1.8%, nickel element content of 1.8%, molybdenum element content of 1.2%, vanadium element content of 13%, and the balance of iron, the weighed raw materials were added to a mixer and mixed for 2 hours to obtain drug core powder;

[0034] 3) Obtain the H08A steel strip for ultrasonic cleaning and drying, process the cross section of the H08A steel strip into a U-shaped structure, and then add the drug core powder obtained in step 2) into the H08A steel strip with a powder feeder and then roll it Forming, and ...

Embodiment 3

[0041] 1) Dry the raw materials at 120°C for 1 hour respectively, use 80-mesh sieves to sieve the dried raw materials, and store the sieved raw materials at 80°C for later use;

[0042] 2) Weigh the drug core raw materials in the drug core wire according to the following proportions: carbon element content 0.4%, silicon element content 0.6%, manganese element content 1.2%, phosphorus element content 0.01%, sulfur element content 0.01%, chromium element content content of 2.5%, nickel element content of 2.5%, molybdenum element content of 1.6%, vanadium element content of 18%, and the balance of iron, the weighed raw materials were added to a mixer and mixed for 2 hours to obtain drug core powder;

[0043] 3) After the H08A steel strip is obtained for ultrasonic cleaning and drying, the cross section of the H08A steel strip is processed into a U-shaped structure, and then the core powder obtained in step 2) is added to the H08A steel strip with a powder feeder and then rolled F...

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Abstract

The invention discloses a self-protecting medicine cored wire material for a large-scale hot-forging die sandwich layer and a preparation method thereof. The medicine cored wire material is prepared from the following chemical components of the medicine core in percentage by mass: 0.24 to 0.4 percent of carbon contents, 0.2 to 0.6 percent of silicon contents, 0.8 to 1.2 percent of managanese elements, less than or equal to 0.02 percent of phosphorus contents, less than or equal to 0.02 percent of sulfur content, 1.8 to 2.5 percent of chromium elements, 1.8 to 2.5 percent of nickel elements, 1.2 to 1.6 percent of molybdenum contents, 13 to 18 percent of vanadium contents, and the balance of iron and impurities. The invention provides the self-protecting medicine cored wire material for the large-scale hot-forging die sandwich layer, so that under a high-temperature reloading extreme operating condition of the sandwich layer material, the elastic deformation and the stress diffusion ability of the sandwich layer are improved, the bonding strength of the sandwich layer and a steel casting mould base body as well as a transitional layer is increased, and the molding quality and the welding technology of the sandwich layer are better.

Description

technical field [0001] The invention belongs to the technical field of welding material manufacturing, and in particular relates to a self-protecting drug core wire used for a sandwich layer of a large hot forging die and a preparation method thereof. Background technique [0002] The 80,000-ton die forging hydraulic press (the world's largest die forging hydraulic press), a major landmark achievement in my country's machinery industry, has played an irreplaceable role in the manufacture of large key parts in aerospace, energy, ships and other fields since it was put into production in 2013 . Now the 80,000-ton die forging hydraulic press is combined with a large hot forging die (single set of 60-100 tons in weight) to form difficult-to-deform materials (such as titanium alloys, high-temperature alloys, ultra-high-strength steel, etc.). The working area of ​​the cavity is under extreme working conditions such as high temperature (350-700°C) and heavy load (over 40,000 tons o...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/40C22C38/02C22C38/04C22C38/44C22C38/46
CPCB23K35/3053B23K35/40C22C38/02C22C38/04C22C38/44C22C38/46
Inventor 周杰张建生丁蓉蓉高飞卢顺沈力
Owner CHONGQING UNIV
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