10 results about "Weldability" patented technology

The invention discloses a method capable of improving the explosive welding weldability of a large-thickness high-strength alloy. A substrate and a flying plate which can be subjected to heat treatment and enhanced obviously are subjected to explosive welding; the lower limit of an explosive welding window can be effectively reduced through a soft section, the problems that when the large-thickness high-strength alloy is directly used for explosive welding, the welding window is small, and the upper limit of explosive welding is reduced are solved, and weldability is enhanced; and by means of flying plate deformation in the explosive welding process, the heat treatment temperature can be reduced, the precipitation process can be effectively promoted, and the high performance can be easily obtained in the subsequent heat treatment process. In addition, if the soft flying plate is used, the torque needing to be overcome is small, in the explosive welding process, under the same requirement for the collision speed, the explosive load required by the soft flying plate is small obviously, and therefore the explosive usage quantity required in the explosive welding process is small, and greater environment protection is achieved. The performance of a composite obtained after explosive welding can be continuously adjusted within the required range according to the service conditions and the usage requirements.

The invention discloses high heat input welding resistant building steel and a production method thereof, and belongs to the technical field of steel production. The steel for the building comprises the following chemical components in percentage by mass: 0.05 to 0.18 percent of C, 0.05 to 0.75 percent of Si, 0.65 to 1.75 percent of Mn, 0.003 to 0.02 percent of P, 0.001 to 0.015 percent of S, 0.005 to 0.075 percent of Al, 0.01 to 0.05 percent of Nb, 0.01 to 0.07 percent of V, 0.005 to 0.04 percent of Ti, 0.001 to 0.01 percent of Mg + Ca, 0.002 to 0.01 percent of O, 0.005 to 0.015 percent of N and the balance of Fe and residual elements, the contents of V, Ti and N also meet the relational expression: 1.06 [Ti] < 3.64 [N] < [V] + 1.06 [Ti]. Precipitated particles formed by nitrides of titanium, niobium and vanadium and oxides of magnesium and calcium play roles in pinning austenite grains and promoting ferrite nucleation; and by adjusting alloy components and a smelting process, the number and form of various nitrides and oxides are reasonably and effectively controlled, coarse structures generated in the welding heat cycle process are eliminated, and the welding performance of the building steel is improved.

The invention belongs to the field of titanium alloy materials, and discloses a titanium alloy for a 3D printing ship. The titanium alloy comprises the following components: 4.0-8.0% of Al, 0.3-2.0% of Mo, 1.0-4.0% of Nb, 0.5-3.0% of Zr, 0.01-0.03% of Y, 0.03-0.12% of O, and the balance of Ti. A preparation method of the titanium alloy comprises the following steps that the materials are preparedaccording to the components of the titanium alloy; the raw materials are smelted and cast into ingots; the cast ingots are machined into rods after cogging and forging; the rods are machined into powder; the powder is screened to obtain titanium alloy powder for the 3D printing ship; and the titanium alloy powder for the 3D printing ship is used as a raw material for preparing a titanium alloy component by a 3D printing technology. The titanium alloy for the 3D printing ship is excellent in strength and toughness matching, is excellent in 3D printing laser forming performance, can be preparedinto a complex titanium alloy component through 3D printing, and is excellent in seawater corrosion resistance and welding performance.

A coated steel sheet has a coating film on at least one side of a plated steel sheet. The coating film contains a binder resin, non-oxide ceramic particles containing V (excluding VC particles), and doped zinc oxide particles. The respective contents of the non-oxide ceramic particles containing V and the doped zinc oxide particles relative to the coating film satisfy the expressions: [(1) C_Zn≥10.0, (2) C_V≤0.5·C_Zn, (3) C_V≤70−C_Zn, (4) C_V≥0.125·C_Zn, and (5) C_V≥2.0], where C_V represents the content (mass %) of the non-oxide ceramic particles containing V, and C_Zn represents the content (mass %) of the doped zinc oxide particles. The coated steel sheet is excellent in both corrosion resistance before electrodeposition coating, and weldability.

The invention discloses a manufacturing method of a titanium-steel composite board and a titanium-steel inner container cup. The method comprises the following steps: purifying the surfaces of a stainless steel plate and a titanium plate, oppositely stacking the composite surfaces of the steel plate and the titanium plate together, carrying out explosive cladding or hot-pressing cladding to obtain the composite board, and rolling the composite board to be thinner through multiple times of cold rolling and annealing. The titanium-steel composite board has the advantages that explosive cladding of the titanium layer and the steel layer is conducted, the whole structure is firm, the titanium-steel composite board not only has the corrosion resistance of titanium, but also has the excellent weldability, formability and thermal conductivity of steel, the usage amount of titanium is greatly reduced, the thickness of the composite board is reduced through multiple times of cold rolling and annealing processes, the thickness of the titanium-steel composite board is greatly reduced, and the titanium-steel composite board can be used for machining cups, bowls and other utensils.

The invention discloses weldable electroconductive rubber and a preparation method thereof. The weldable electroconductive rubber includes a metal base layer and an electroconductive rubber layer arranged at the upper surface of the metal base layer, and a material of the electroconductive rubber layer comprises the following components, in parts by weight: 100 parts of a rubber substrate, 5-500 parts of an electroconductive filler, 0-20 parts of a coupling agent, 1-10 parts of a crosslinking agent, and 1-10 parts of a catalyst. The weldable electroconductive rubber is obtained by growing theabove specific electroconductive rubber composition on the metal substrate. The weldable electroconductive rubber provided by the invention overcomes the problem that electroconductive rubber in the prior art does not have weldability, and bonding force of the electroconductive rubber and a metal substrate is poor; and at the same time, the prepared weldable electroconductive rubber has excellentelectrical and mechanical properties.