A 3D cold printing self-propagating method for preparing tic-based steel-bonded cemented carbide
A steel-bonded hard alloy, self-propagating technology, applied in metal processing equipment, transportation and packaging, additive processing, etc., can solve the problem that powder and hard phase particles are difficult to mix evenly, and the bonding strength between reinforcing particles and steel matrix is not high , Steel-bonded carbide can not be formed in one piece, etc., to achieve the effect of reducing processing costs, low processing costs, and short time consumption
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Embodiment example 1
[0025] (1) Configure the premix solution: mix the organic monomer hydroxyethyl methylendenoate (HEMA) and the solvent toluene in a certain proportion, and the concentration of the organic monomer hydroxyethyl methylendenoate (HEMA) is 40% , and add 2.5vol.% polytetrafluoroethylene (PTFE) to configure a premix;
[0026] (2) Preparation of metal slurry: take by weight 28wt.% of Ti powder, 5wt.% of graphite powder, and the balance is CrMo low-alloy steel powder, and add it to the premixed solution in step (1) to prepare metal material Slurry, solid content is 60vol.%, then add the oleic acid of powder mass 0.1wt% to improve slurry fluidity;
[0027] (3) Data modeling: Use 3D modeling software to design part models of the required structural shape, especially large-scale part models with closed cavities and complex inner cavities. The part models are sliced in layers, and the thickness of the layers is 0.05mm, get the 3D model data of the part;
[0028] (4) 3D printing: import...
Embodiment example 2
[0032] (1) Configure the premix solution: mix the organic monomer hydroxyethyl methylendenoate (HEMA) and the solvent toluene in a certain proportion, and the concentration of the organic monomer hydroxyethyl methylendenoate (HEMA) is 30% , and add 3vol.% polytetrafluoroethylene (PTFE) to configure a premix;
[0033] (2) Preparation of metal slurry: take by weight 36wt.% of Ti powder, 8wt.% of graphite powder, and the balance is high manganese steel powder, and add it to the premixed solution in step (1) to prepare metal slurry , solid content is 55vol.%, then add the oleic acid of powder quality 0.15wt% to improve slurry fluidity;
[0034] (3) Data modeling: Use 3D modeling software to design part models of the required structural shape, especially large-scale part models with closed cavities and complex inner cavities. The part models are sliced in layers, and the thickness of the layers is 0.05mm, get the 3D model data of the part;
[0035] (4) 3D printing: import the 3...
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