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3D printing, also known as additive manufacturing, is a magical technology that creates three-dimensional objects by adding materials layer by layer. There are various 3D printing technologies, including stereolithography (SLA), fused deposition modeling (FDM) and selective laser melting (SLM), which are widely used in many industries such as medicine, construction, aerospace, etc.
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Copper foil is made of copper and other metals in a certain proportion. It is an important material for copper clad laminate (CCL) and printed circuit board (PCB). In today's rapidly developing electronic information industry, electrolytic copper foil is called: the "neural network" for electronic product signal and power transmission and communication.
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Lead brass is a complex brass with lead as the main added element. It is made of four non-ferrous metals, Cu, Pb, Al, and Zn, in a certain ratio. Lead is rarely dissolved in copper-zinc alloys. It exists as an independent phase in the alloy and is distributed as free particles at the grain boundaries and in the grains.
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A welded joint refers to a joint where two or more parts are welded together. Or it refers to a joint where two or more parts are connected by welding, including weld, fusion zone and heat-affected zone. A fusion welded joint is formed by local heating from a high-temperature heat source. A welded joint consists of weld metal, fusion zone, heat-affected zone and parent metal.
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Boron carbide, also known as black diamond, has a Mohs hardness of 9.3. It is the third hardest known substance after diamond, boron nitride, and is used in tank armor, bulletproof vests, and many industrial applications. Due to its high melting point, boron carbide itself is not easy to cast into artificial products, but it can be processed into simple shapes by melting powder at high temperature. It is used for grinding, grinding, drilling and polishing of hard materials such as cemented carbide and gemstones.
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3 samples (Sample 1: S136-12, Sample 2: S136-1, Sample 3: 18Ni300)
Raw materials and formula: Sample 1 & Sample 2 are both S136 high-grade stainless steel; Sample 3 is 18Ni300 (1.2709 mold steel) maraging steel.
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Carbide coating refers to the coating of wear-resistant TiC or TiN, HfN, Al2O3 and other thin layers on the surface of carbide blades by chemical vapor deposition (CVD) and other methods to form surface coating carbide.
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Carbon fiber is an inorganic high-performance fiber with a carbon content of more than 90% that is transformed from organic fiber through a series of heat treatments. It is a new material with excellent mechanical properties. It has the inherent characteristics of carbon materials and the softness and processability of textile fibers. It is a new generation of reinforcing fibers. The main use of carbon fiber is to be compounded with resins, metals, ceramics and other matrices to make structural materials.
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NdFeB magnet is a tetragonal crystal formed by neodymium, iron and boron (Nd2Fe14B). NdFeB is divided into sintered NdFeB and bonded NdFeB. Bonded NdFeB is magnetic in all directions and corrosion-resistant; sintered NdFeB is easy to corrode, so the surface needs to be plated, generally with zinc, nickel, environmentally friendly zinc, environmentally friendly nickel, nickel-copper-nickel, environmentally friendly nickel-copper-nickel, etc. Sintered NdFeB is generally divided into axial magnetization and radial magnetization, depending on the required working surface.
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6063 aluminum alloy is a heat-treatable aluminum alloy belonging to the aluminum-magnesium-silicon series. The chemical composition of 6063 aluminum alloy is 0.2-0.6% silicon, 0.45-0.9% magnesium, and the maximum limit of iron is 0.35% in GB/T5237-93 standard. The remaining impurity elements (Cu, Mn, Zr, Cr, etc.) are all less than 0.1%. This composition range is very wide, and it still has a lot of room for selection.
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Cable is a device for transmitting electric energy or signals. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wire and an insulating layer, used to connect circuits, electrical appliances, etc.
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Chip capacitors are also called multi-layer ceramic capacitors (MLCC), or chip capacitors (or further referred to as chip capacitors). They are made of ceramic dielectric diaphragms with printed electrodes (inner electrodes) stacked in a staggered manner, sintered at high temperature once to form a ceramic chip, and then sealed with a metal layer (outer electrode) at both ends of the chip to form a monolithic structure, so it is also called a monolithic capacitor.