Gel injection moulding forming technique for boron carbide-metal composite material
A metal composite material and gel injection molding technology, which is applied in the gel injection molding process field of boron carbide-metal composite materials, can solve the problems of complex process and high equipment cost, and achieve simple molding process, low cost, and easy The effect of machining
Inactive Publication Date: 2010-10-20
OCEAN UNIV OF CHINA
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For the preparation of boron carbide-metal composite materials, the method of immersing the boron carbide blank in molten liquid metal is generally used in the literature. The process is relatively complicated and the equipment cost is high, but the boron carbide-metal Composite materials have not been reported at home and abroad
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0012] Add 2ml of organic monomer trimethylpropane triacrylate (TMPTA) and 18ml of organic monomer 1,6-hexanediol diacrylate (HDDA) and 8ml of dispersant CH-10S into 20ml of n-octanol, mix well to prepare Obtain the monomer solution; add 112g particle diameter about 2 μm boron carbide powder and 52g particle diameter about 45 μm aluminum powder in the monomer solution and mix uniformly to make slurry, then add 4ml volume percentage and be 10% peroxide Continue to mix the benzene solution of dibenzoyl to obtain a slurry; inject the slurry into a mold and vacuum degass it for 15 minutes; then put the mold containing the slurry into an oven at 110°C for 20 minutes to solidify and form; Dry the demoulded green body in an oven at 130° C. for 4 hours. After the drying is complete, a ceramic green body is obtained. The bending strength of the green body is 25 MPa, which can be machined or sintered after degreasing.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| flexural strength | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a gel casting technique of a boron carbide-metal composite. An organic monomer is first melted in organic solution, in which dispersant is added in order to produce monomer solution; ceramic-metal composite powder is added in the monomer solution, so that paste is produced; the paste is then added with the benzene or toluene of an initiator and uniformly mixed; the produced paste is injected into a die and goes through a vacuum degassing process for five to twenty minutes; the die filled with the paste is put into an oven with a constant temperature of 100 to 120 DEG C for five to thirty minute, so that an organic polymerization reaction occurs in the paste, and a rough blank is produced; the rough blank is taken out of the die and put into the oven with a constant temperature of 130 to 150 DEG C for drying for two to six hours; finally, the rough blank is degreased and sentered. The technique has the advantages of simplicity and low cost, moreover, the technique can shape a product with a complex shape and a near net size, the strength of the rough blank is high and can be mechanically processed before being sintered, and the content of organic matters inthe rough blank is low and can be easily removed.
Description
technical field [0001] The invention relates to an inorganic material forming process, in particular to a gel injection molding process of a boron carbide-metal composite material. Background technique [0002] In the process of preparing high-performance ceramic products, molding is one of the key technologies that affect their performance. In the 1990s, based on the traditional colloidal molding process, M·A·Janny and O·O·Omatete of the Oak Ridge National Laboratory in the United States invented a low-cost process for preparing high-performance ceramic green bodies—— Gel casting technology (Gelcasting). It organically combines traditional ceramic technology and polymer chemistry, introduces a new molding mechanism, and realizes in-situ solidification of slurry. The basic principle is to add catalysts and initiators to the low-viscosity, high-solid-content concentrated ceramic suspension containing organic monomers to polymerize the organic monomer gel in the concentrated...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/622
Inventor 黄翔夏丰杰尹衍升戴金辉
Owner OCEAN UNIV OF CHINA