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Specialized in R&D and production of aerosolized alloy powder materials

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Material Essential Knowledge

SLM Selective Laser Melting

SLM: Selective laser melting is a main technical approach in additive manufacturing of metal materials. This technology uses laser as the energy source and scans the metal powder bed layer by layer according to the path planned in the three-dimensional CAD slice model. The scanned metal powder achieves the metallurgical bonding effect through melting and solidification, and finally obtains the result designed by the model for metal parts. SLM technology overcomes the problems caused by traditional technology in manufacturing metal parts with complex shapes. It can directly form nearly fully dense metal parts with good mechanical properties.

SLS Selective Laser Sintering

Selective laser sintering is an SLS method that uses infrared lasers as energy, and the modeling materials used are mostly powder materials. the powder is first preheated to a temperature slightly lower than its melting point during processing, and then the powder is spread flat under the action of a scraping stick; the laser beam is selectively sintered according to the layered cross-section information under computer control, Then proceed to the next layer of sintering after one layer is completed. You can obtain a sintered part after all sintering is completed by removing the excess powder.

(EBM)Electron Beam Melting (EBM)

Electron beam melting (EBM) is a 3D printing technology very similar to SLS, but EBM has two differences - the energy comes from electron beams instead of CO2, and the materials used are conductive metals instead of thermoplastic polymers things. Specifically, EBM typically uses titanium alloys and cannot print plastic or ceramic parts. This is due to the electric charge on which the entire process is based. EBM requires conductive metals because the technology itself is based on electric charges. In other words, the charge is responsible for causing the powder to react with the electron beam, thereby solidifying the powder.

Surface Treatment

Surface treatment is a process that artificially forms a layer on the surface of a base material that has different mechanical, physical and chemical properties from the base material. The purpose of surface treatment is to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product. For metal castings, our more commonly used surface treatment methods are mechanical grinding, chemical treatment, surface heat treatment, and surface spraying. Surface treatment is to clean, sweep, deburr, remove oil stains, remove scale, etc. on the surface of the workpiece.

Thermal spraying

Thermal spraying refers to heating and melting the coating material, using high-speed airflow to atomize it into extremely fine particles, and spraying it onto the surface of the workpiece at a high speed to form a coating. By choosing different coating materials as needed, you can obtain one or more properties in terms of wear resistance, corrosion resistance, oxidation resistance, heat resistance, etc.

Plasma Spraying

Plasma spraying is a material surface strengthening and surface modification technology that can make the surface of the substrate have wear resistance, corrosion resistance, high temperature oxidation resistance, electrical insulation, heat insulation, radiation protection, wear reduction and sealing properties. Plasma spraying technology uses a plasma arc driven by DC as a heat source to heat ceramics, alloys, metals and other materials to a molten or semi-molten state, and spray them at high speed onto the surface of the pretreated workpiece to form a firmly adherent surface layer. . Plasma spraying is also used for medical purposes, spraying a layer of tens of microns on the surface of artificial bones as a method to strengthen artificial bones and enhance their affinity.

Thermal Spray Powder

Metals, alloys and composite powders commonly used in thermal spray hard facing technology.

Cold Spray

Supersonic cold spraying, In short cold spraying, is a new material surface coating technology. It is a process in which high-pressure gas with a temperature far lower than the melting point of the spray material passes through a specific nozzle to obtain a high-speed air flow, accelerates the spraying of powder particles (0.001-0.05mm), and sprays the solid powder particles onto the surface of the substrate to deposit and form a coating.

Metal Powder Coatings

Metal powder coatings refer to various powder coatings containing metallic pigments such as copper-gold powder, silver-aluminum powder, etc

Metallic Coatings

Metallic coatings are coatings with a metallic texture. Most of them need some form of pretreatment on the metal surface to improve the surface condition, so as to improve the adhesion of the coating and enhance the anti-corrosion protection of the metal substrate.

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