Preparation method of titanium alloy matrix for diamond saw blade
阅读说明：本技术 一种用于金刚石锯片的钛合金基体制备方法 (Preparation method of titanium alloy matrix for diamond saw blade ) 是由 周睿之 李享 郭嘉昕 于 2020-06-03 设计创作，主要内容包括：本发明公开了一种用于金刚石锯片的钛合金基体制备方法,具体按照以下步骤实施：选用0-1级、粒径为10-30mm的海绵钛颗粒；将海绵钛颗粒置于坩埚中,并向坩埚中通入氩气,通过万吨油压板压电板进行无电极焊接,得自耗电极；将自耗电极置于真空自耗电弧炉熔炼,得钛合金铸锭；对钛合金铸锭进行轧制,锻造,退火,得钛合金板材；将钛合金板材按要求尺寸切割加工成金刚石锯片的钛合金基体；能够制备出一种耐磨、耐腐蚀的合金材料,钛合金基体比钢、不锈钢基体具有更高的疲劳强度,屈服强度和蠕度强,具有较低的弹性模量、抗冲击性能强、抗噪音、抗振动特性,在疲劳切割载荷情况下能减少应力；还能够提高了锯片的使用寿命。(The invention discloses a preparation method of a titanium alloy matrix for a diamond saw blade, which is implemented according to the following steps: selecting 0-1 grade titanium sponge particles with the particle size of 10-30 mm; placing titanium sponge particles in a crucible, introducing argon into the crucible, and performing electrodeless welding through a ten thousand ton oil pressure plate piezoelectric plate to obtain a consumable electrode; placing the consumable electrode in a vacuum consumable electric arc furnace for smelting to obtain a titanium alloy ingot; rolling, forging and annealing the titanium alloy ingot to obtain a titanium alloy plate; cutting and processing the titanium alloy plate into a titanium alloy matrix of the diamond saw blade according to the required size; the wear-resistant and corrosion-resistant alloy material can be prepared, the titanium alloy substrate has higher fatigue strength, strong yield strength and creep degree, lower elastic modulus, strong shock resistance, noise resistance and vibration resistance compared with steel and stainless steel substrates, and the stress can be reduced under the condition of fatigue cutting load; the service life of the saw blade can be prolonged.)
1. A preparation method of a titanium alloy matrix for a diamond saw blade is characterized by comprising the following steps:
step 1, selecting titanium sponge particles with the particle size of 10-30mm and the grade of 0-1;
step 2, placing the titanium sponge particles in a crucible, introducing argon into the crucible, and performing electrodeless welding through a ten thousand ton oil pressure plate piezoelectric plate to obtain a consumable electrode;
step 3, putting the consumable electrode into a vacuum consumable electrode arc furnace for smelting to obtain a titanium alloy ingot;
step 4, rolling, forging and annealing the titanium alloy ingot to obtain a titanium alloy plate;
and 5, cutting the titanium alloy plate into a titanium alloy matrix of the diamond saw blade according to the required size.
2. The method for preparing a titanium alloy substrate for a diamond saw blade according to claim 1, wherein the titanium sponge particles in step 1 comprise alloy elements and impurity elements, the sum of the mass percent of the alloy elements and the impurity elements is 100%, and the content of the impurity elements is 0.098% -0.245%.
3. The method for preparing a titanium alloy substrate for a diamond saw blade according to claim 2, wherein the impurity elements comprise, in mass percent, titanium sponge particles: oxygen: 0.09-0.10%, hydrogen: 0.008-0.015%, nitrogen: less than or equal to 0.05 percent, carbon: less than or equal to 0.08 percent.
4. The method for preparing a titanium alloy matrix for a diamond saw blade according to claim 2, wherein the alloy elements comprise, in mass percent, titanium sponge particles: 0.2-8% of aluminum, niobium: 0.5-30%, tantalum: 0.5%, vanadium: 0.5-6% and the balance titanium.
5. The method for preparing the titanium alloy matrix for the diamond saw blade according to claim 1, wherein the specific process of the step 3 is as follows: water-cooled copper with consumable electrode in vacuum consumable arc furnaceIn the crucible, the temperature is regulated to 1668--4-5×10-2mm mercury column, cooling after 2-4.5 hours, and obtaining the titanium alloy ingot.
6. The method for preparing the titanium alloy matrix for the diamond saw blade according to the claim 5, wherein the step 4 of rolling and forging the titanium alloy ingot comprises the following specific processes: placing the titanium alloy ingot in a piezoelectric hydraulic press 7000t, preheating to 100-200 ℃, rolling the thickness of 2.0-1.5-1.2-1.0 mm in sequence, controlling the total time at 120-150min, taking out, placing in a 2500t quick forging machine for forging, controlling the temperature at 980-1180 ℃, the time at 30-120min, and the thickness at 0.3-1.0 mm, and then annealing by an electron beam furnace EBCHR4/200/2400, controlling the temperature at 700-800 ℃ and the time at 60-120min, thus obtaining the titanium alloy plate.
7. The method for preparing the titanium alloy substrate for the diamond saw blade according to the claim 5, wherein the step 4 is to roll, forge and anneal the titanium alloy ingot: preheating the flat square blank to 100-200 ℃, rolling the thickness of the flat square blank to 2.0-1.5-1.2-1.0 mm in sequence, cooling to normal temperature when one thickness is reached, heating to 700 ℃, and carrying out vacuum annealing, wherein the annealing time is controlled to be 40-60 minutes.
8. The method for preparing a titanium alloy substrate for a diamond saw blade according to any one of claims 1 to 7, wherein the step 5 comprises the following steps: and connecting the titanium alloy plate to a computer numerical control machine tool, and processing the titanium alloy plate to the required size of the diamond saw blade through the computer numerical control machine tool to obtain the titanium alloy matrix of the diamond saw blade.
9. The method for preparing a titanium alloy substrate for a diamond saw blade according to any one of claims 1 to 7, wherein the step 5 comprises the following steps: and processing the titanium alloy plate to the required size of the diamond saw blade by adopting a laser sensor and a video sensor to obtain the titanium alloy matrix of the diamond saw blade.
Technical Field
The invention belongs to the technical field of constructional engineering tools, and particularly relates to a preparation method of a titanium alloy matrix for a diamond saw blade.
Background
The existing common traditional superhard grinding tool base body adopts steel, spring steel and stainless steel as saw blade base body materials, and the base body has heavy weight and is easy to rust. In harsh environments, such as acid-base salts containing significant amounts of free chloride ions, there is significant erosion of stainless steel-based diamond saw blades.
In the fields of ocean seabed cutting, nuclear power station building of nuclear industry, bridge building reconstruction and highway building, when various metal materials are cut, the base body is required to be an alloy material with high corrosion resistance, high temperature resistance, impact resistance, noise resistance, no magnetism, small negative number of rotational inertia, strong toughness and memory, and the base body is also required to be a metal material with high strength, fatigue resistance and long service life in an abrasive grinding tool.
Disclosure of Invention
The invention aims to provide a method for preparing a titanium alloy matrix for a diamond saw blade, which can be used for preparing a wear-resistant and corrosion-resistant alloy material.
The invention adopts the technical scheme that a method for preparing a titanium alloy matrix for a diamond saw blade is implemented according to the following steps:
step 1, selecting titanium sponge particles with the particle size of 10-30mm and the grade of 0-1;
step 2, placing the titanium sponge particles in a crucible, introducing argon into the crucible, and performing electrodeless welding through a ten thousand ton oil pressure plate piezoelectric plate to obtain a consumable electrode;
step 3, putting the consumable electrode into a vacuum consumable electrode arc furnace for smelting to obtain a titanium alloy ingot;
step 4, rolling, forging and annealing the titanium alloy ingot to obtain a titanium alloy plate;
and 5, cutting the titanium alloy plate into a titanium alloy matrix of the diamond saw blade according to the required size.
The invention is also characterized in that:
the titanium sponge particles in the step 1 comprise alloy elements and impurity elements, the sum of the mass percentages is 100%, and the content of the impurity elements is 0.098% -0.245%.
The impurity elements comprise the following components in percentage by mass: oxygen: 0.09-0.10%, hydrogen: 0.008-0.015%, nitrogen: less than or equal to 0.05 percent, carbon: less than or equal to 0.08 percent.
The alloy elements comprise the following components in percentage by mass: 0.2-8% of aluminum, niobium: 0.5-30%, tantalum: 0.5%, vanadium: 0.5-6% and the balance titanium.
The specific process of the step 3 is as follows: the consumable electrode is arranged in a water-cooled copper crucible of a vacuum consumable electric arc furnace, the temperature is adjusted to 1668--4-5×10-2mm mercury column, cooling after 2-4.5 hours, and obtaining the titanium alloy ingot.
Step 4, rolling and forging the titanium alloy ingot specifically comprises the following steps: placing the titanium alloy ingot in a piezoelectric hydraulic press 7000t, preheating to 100-200 ℃, rolling the thickness of 2.0-1.5-1.2-1.0 mm in sequence, controlling the total time at 120-150min, taking out, placing in a 2500t quick forging machine for forging, controlling the temperature at 980-1180 ℃, the time at 30-120min, and the thickness at 0.3-1.0 mm, and then annealing by an electron beam furnace EBCHR4/200/2400, controlling the temperature at 700-800 ℃ and the time at 60-120min, thus obtaining the titanium alloy plate.
Step 4, rolling and forging the titanium alloy ingot, wherein the annealing process comprises the following specific steps: preheating the flat square blank to 100-200 ℃, rolling the thickness of the flat square blank to 2.0-1.5-1.2-1.0 mm in sequence, cooling to normal temperature when one thickness is reached, heating to 700 ℃, and carrying out vacuum annealing, wherein the annealing time is controlled to be 40-60 minutes.
The specific process of the step 5 is as follows: and connecting the titanium alloy plate to a computer numerical control machine tool, and processing the titanium alloy plate to the required size of the diamond saw blade through the computer numerical control machine tool to obtain the titanium alloy matrix of the diamond saw blade.
The specific process of the step 5 is as follows: and processing the titanium alloy plate to the required size of the diamond saw blade by adopting a laser sensor and a video sensor to obtain the titanium alloy matrix of the diamond saw blade.
The invention has the beneficial effects that:
the titanium alloy substrate has higher fatigue strength, strong yield strength and creep degree, lower elastic modulus, strong shock resistance, noise resistance and vibration resistance, and can reduce stress under the condition of fatigue cutting load. The titanium alloy matrix has excellent atmospheric corrosion resistance, can be used at ultralow temperature, and the service life of the saw blade is prolonged by preparing the diamond saw blade matrix from the titanium alloy.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.