5results about How to "Achieve modification" patented technology

The utility model discloses an injection molding product surface functionalization modification treatment device which comprises a bottom plate, the middle end of the top of the bottom plate is fixedly connected with a frame, the upper end of the outer side of the frame is fixedly connected with a bag-type dust collector, and the bottom of the outer side of the bag-type dust collector is fixedly provided with a dust collector through bolts. The air inlet end of the dust collector communicates with one side of a bag-type dust collector through a pipeline, and the top of the bag-type dust collector is fixedly connected with a second dust collection plate through a pipeline. According to the utility model, the bag-type dust collector is matched with the dust collector, and the second dust collection plate, the second dust collection cover, the first dust collection plate and the first dust collection cover are arranged, so that dust and chippings generated in the surface modification treatment process of injection molding products, such as polishing, can be effectively sucked away in time. The cleaning of the working environment can be kept, the risk that operators inhale dust is reduced, the body health of the operators is protected, the pollution of dust to the treatment device and injection molding products can be avoided, and the treatment quality is improved.

This invention provides a biocompatible β This invention relates to a method for composite modification of titanium alloy surfaces, belonging to the technical field of alloy modification methods. The invention includes applications in medical... β This invention involves introducing bioactive particles onto the surface of a titanium alloy substrate, performing friction stir processing (FSP) on the substrate to introduce bioactive particles and construct a gradient grain structure, and then subjecting the FSP-treated substrate to compressed plasma flow (CPF) treatment to achieve uniform distribution of bioactive particles and construct a topology with an average surface roughness of 3-6 μm suitable for cell growth. The invention precisely controls the amount of bioactive particles introduced and constructs a gradient grain structure through friction stir processing (FSP); simultaneously, compressed plasma flow (CPF) technology achieves uniform distribution of bioactive particles and an ideal surface roughness of 3-6 μm on the titanium alloy surface. Ultimately, this significantly improves the cell adhesion, proliferation capacity, and osteogenic properties of the material surface, solving the technical problem of low integration efficiency of traditional titanium alloy implants with human bone tissue.

The application relates to the technical field of building construction, and particularly discloses a shotcrete and a construction method thereof. A mixture of the shotcrete comprises the following components: Portland cement, fine aggregate, coarse aggregate, a quick-setting agent, steel fibers and premix, the premix is obtained by mixing diatomite, cyclodextrin, polycarboxylate superplasticizer and modified bentonite and then grinding and sieving, the modified bentonite is obtained by drying a mixture of bentonite and a modified liquid to a constant weight, the components of the modified liquid include polyethylene glycol and water, and the total amount of the polyethylene glycol in the modified liquid is 70-90% of the weight of the bentonite. The modified bentonite is prepared through adsorption between polyethylene glycol and bentonite, adsorption of the bentonite to the polycarboxylate superplasticizer is reduced, the total amount of the polycarboxylate superplasticizer actually playing a water-reducing role in the concrete mixture is increased, the fluidity of the concrete mixture is improved, and the construction performance of the shotcrete mixture is improved.

The application discloses a kind of nanometer silicon-based powder material surface modification material and preparation method and application, structure includes from inside to outside nanometer silicon, first silicon oxide layer, second silicon oxide layer, carbon coating layer or oxide coating layer, wherein the size of nanometer silicon is 30-200nm;Wherein the thickness of first silicon oxide layer is 2-4nm, oxygen content is 2-6wt%;Wherein the thickness of second silicon oxide layer is 1-3nm, oxygen content is 1-4wt%;Wherein the carbon content in carbon coating layer is 1-5wt%, the content of oxide in oxide coating layer is 0.1-1wt%.The application utilizes the diffusion and flow characteristics of supercritical carbon dioxide, modifies nanometer silicon-based material, can control superfine powder material surface structure by this modification method, and can realize nanometer silicon-based material surface uniform coating, improve the utilization ability of nanometer silicon-based material.

The utility model discloses a modifying and homogenizing device suitable for high-hardness powder. The modifying and homogenizing device comprises a cylinder main body (1), a front end cover (2), a rear end cover, a stirrer (3), a feeding hole (4) and a dust removal bag (5), the cylinder main body is horizontally arranged, and a horizontally arranged stirrer is arranged in the cylinder main body; aluminum oxide ceramic chips are attached to the inner walls of the cylinder body, the front end cover and the rear end cover. When the equipment runs, powder is fed from a feed port, an auxiliary agent enters from an auxiliary agent liquid inlet pipe (7), and a gas inlet pipe (6) can be used for filling high-temperature compressed gas into a cylinder main body to accelerate mixing and homogenization; a second one-way valve (8) is installed on the auxiliary liquid inlet pipe, and a first one-way valve (9) is installed on the gas inlet pipe. The aluminum oxide ceramic chips are attached to the inner walls of the cylinder main body, the front end cover and the rear end cover, so that the problem that high-hardness powder abrades the inner wall of the cylinder main body is solved; and an auxiliary liquid inlet pipe and a gas inlet pipe are arranged on the front end cover and the rear end cover, so that powder modification and homogenization are accelerated.