Surface treatment method for powdered metal material
A metal material and surface treatment technology, applied in grain processing, metal processing equipment, transportation and packaging, etc., can solve the problems of low strength, loss of simplicity, mechanical parts are not durable and practical, and achieve the effect of avoiding the danger of dust explosion
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Embodiment 1
[0093] The surface treatment method of the present invention was implemented on a powder of stainless steel (product corresponding to SUS304: #80) which is a powdery metal material. The treatment conditions are shown in Table 1 below.
[0094] [Table 1]
[0095] Processing conditions in embodiment 1 (SUS304)
[0096]
[0097] Drop 10kg of stainless steel powder into the material cage located in the processing chamber of the spray processing device, and drop 20kg of stainless steel powder into the recovery tank. With the conditions shown in the above table 1, carry out continuous 3 hours to transfer the stainless steel powder in the recovery tank from the spray nozzle to the Treatment of spraying in the feeding cage.
[0098] As a result of the above treatment, the oxide scale of the treated stainless steel powder is removed, and the surface becomes clean, and the hardness of the stainless steel powder that was 250-350HV before treatment increases to 450-550HV after treatm...
Embodiment 2
[0101] The surface treatment method of the present invention was implemented on a powdered high-speed tool steel (SKH equivalent product: #150) which is a powdery metal material. The treatment conditions are shown in Table 2 below.
[0102] [Table 2]
[0103] Processing conditions in Example 2 (powder high-speed tool steel: products equivalent to SKH)
[0104]
[0105] Put 10kg of powdered high-speed tool steel into the material cage located in the processing chamber of the blasting processing device, and put 10kg of powdered high-speed tool steel into the recovery tank. With the conditions shown in the above table 2, the powder in the recovery tank is continuously processed for 5 hours. Tool steel is sprayed from the spray nozzle into the cage.
[0106] As a result, the hardness of the powder high speed tool steel which was 650 to 750 HV before the treatment rose to 900 to 1000 HV after the treatment.
[0107] Also, the scale of the treated powder high-speed tool steel ...
Embodiment 3
[0109] The surface treatment method of the present invention was implemented on a powder of alloy steel for machine structure (product corresponding to SCM: #150), which is a powdery metal material. The treatment conditions are shown in Table 3 below.
[0110] [table 3]
[0111] Example 3 Processing Conditions in Powder of Alloy Steel for Machine Structures (Products Corresponding to SCM)
[0112]
[0113] Put 10kg of powder of alloy steel for mechanical structure into the material cage in the processing chamber of the spray processing device, and put 10kg of powder of alloy steel for mechanical structure into the recovery tank, and carry out the grinding for 5 hours continuously under the conditions shown in the above table 3. The mechanical structure in the recovery tank is treated by spraying alloy steel powder from the spray nozzle toward the cage.
[0114] As a result, the hardness of the alloy steel powder for machine structure, which was 150 to 200 HV before the tr...
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Abstract
Description
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Application Information
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