Shenzhen Sunxing Light Alloys Materials Co., Ltd.

Sun Xing Chemical & Metallurgical Materials (shenzhen) Co., Ltd.

Yueming Yu

Jun Yang

Xuemin Chen

Qingdong Ye

Jianguo Li

Zhi Zhou

Chaowen Liu

Xinyi Chen

Yulong Wang

Sihai Zhou

Ronald Ray Duckworth

Qingchao Wang

Liyi Yang

Bingzhang Li

Zenglong Wang

Zhi Xhou

Disclosed are a silicon-aluminum alloy and its preparation method. The method comprises: adding aluminum metal or molten aluminum into a container, wherein the temperature of the molten aluminum is between 700° C. and 800° C.; adding a semi-metallic silicon raw material to the molten aluminum, closing a furnace cover, carrying out vacuumization, and introducing argon, to ensure that the interior of a magnetic induction furnace is in a positive-pressure state, and stirring the aluminum metal or molten aluminum with a graphite stirring head; powering on and heating so that the aluminum metal or molten aluminum is heated to 1000° C. or above and molten, and holding the temperature between 1000° C. and 1500° C.; and after alloying is completed, cooling the molten aluminum to 1000° C. or below, opening the furnace cover, pouring the silicon-aluminum alloy into a corresponding mold, and cooling for molding.

Silicon-aluminum alloy and preparation method therefor

An electromechanical double-bladed fruit and vegetable peeling and cutting machine comprising a holding mechanism (), a peeling mechanism (), and a cutting mechanism () sequentially provided in a direction of fruit and vegetable processing. The holding mechanism receives and holds a fruit or vegetable, and pushes the fruit or vegetable toward the peeling mechanism for positioning. The peeling mechanism performs positioning, measures actual cutting height of the fruit or vegetable, and adaptively peels the fruit or vegetable by means of two peeling blades. The cutting mechanism removes a top and a bottom portion of the peeled fruit or vegetable, and cuts the fruit or vegetable into pieces. A processing method for the electromechanical double-bladed fruit and vegetable peeling and cutting machine is also disclosed, and comprises: using a holding mechanism to hold and fix a fruit or vegetable in a processing position; using a peeling structure to accurately measure the height of the fruit or vegetable to be processed; using two peeling blades to efficiently and adaptively peel the fruit or vegetable; and finally engaging a pushing cylinder (), to sequentially push multiple fruits and vegetables toward a cutting blade () such that the fruits and vegetables are cut into pieces. A third telescopic cylinder participates in the processing steps by pushing cutting blades such that the bottoms and the tops of the fruits and vegetables are removed. The invention reduces processing time, and improves productivity.

Electromechanical double-bladed fruit and vegetable peeling and cutting machine and processing method

The present invention pertains to the field of metal alloy, and discloses an aluminum-zirconium-titanium-carbon grain refiner for magnesium and magnesium alloys, having a chemical composition of: 0.01%&#x2dc;10% Zr, 0.01%&#x2dc;10% Ti, 0.01%&#x2dc;0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an Al&#x2014;Zr&#x2014;Ti&#x2014;C intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.

Aluminum-zirconium-titanium-carbon grain refiner and method for producing the same

The present invention pertains to the field of metal alloy, and relates a grain refiner for magnesium and magnesium alloys, which is an aluminum-zirconium-carbon (Al&#x2014;Zr&#x2014;C) intermediate alloy, having a chemical composition of: 0.01%&#x2dc;10% Zr, 0.01%&#x2dc;0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.

Grain refiner for magnesium and magnesium alloys and method for producing the same

The invention provides a Potassium Fluotitanate (KTIF6) manufacture process. The Potassium Fluotitanate (KTIF6) manufacture process includes steps: A. providing titanium ferrum powder to a reaction furnace and adding HF and peroxide solution to react with the titanium ferrum powder sufficiently to manufacture HTiF, B. filtrating the sufficiently mixed solution of step A and adding it to another reaction furnace, and then after the HTiFcools off, adding Potassium Chloride (KCl) solution to react with the mixed solution to manufacture Potassium Fluotitanate (KTiF); C. adding KCOsolution to the remaining solution of step B and react with the remaining solution and controlling the pH value, the element Fe is recycled by a form of Fe(OH)flocculent precipitate and the Potassium Chloride (KCl) and KF solution are recycled. This invention has these advantages: adding peroxide to the titanium ferrum powder can oxidize Feinto Feand adding KCOsolution to clean element Fe out by a form of Fe(OH)flocculent precipitate, and the hydrofluoric acid (HF) can be recycled which can realize the HF zero polluting discharge.

Potassium fluotitanate manufacture and device background

The present invention provides a zero pollution recovery system for safely producing anhydrous fluorine hydride, comprising: a compartment, a reactor for producing fluorine hydride, and a water pool; the reactor is disposed in the compartment; the water pool is disposed at the bottom of the compartment; absorption hoods are respectively disposed above both ends of the reactor for absorbing fluorine hydride gas; at least two absorption towers mutually connected in series via pipes are disposed above the compartment; water pipes connected with the water pool are respectively disposed at the top and bottom of the absorption tower; and a cooler and a receiver connected with the water pool is disposed on the pipes. The present invention has the advantages of being able to control the range over which fluorine hydride can diffuse.

Zero pollution recovery system for safely producing anhydrous fluorine hydride

An electromagnetic induction melting furnace to control an average nominal diameter of the TiC cluster of the Al&#x2014;Ti&#x2014;C alloy includes a main body containing the melted alloy; and a multi-layer coil disposed on the main body, wherein a frequency of the alternative current of each coil of the multi-layer coil is different, and the alloy is heated by inducing a magnetic field generated by the alternative currents. The selection of the frequency and the changeable magnetic field may reduce the cohesion force between the TiC grains of the Al&#x2014;Ti&#x2014;C alloy to control the average nominal diameter of the TiC cluster.

Electromagnetic induction melting furnace to control an average nominal diameter of the TiC cluster of the Al&#x2014;Ti&#x2014;C alloy

An electromagnetic induction melting furnace to control an average nominal diameter of the TiBcluster of the Al&#x2014;Ti&#x2014;B alloy includes a main body containing the melted alloy; and a multi-layer coil disposed on the main body, wherein a frequency of the alternative current of each coil of the multi-layer coil is different, and the alloy is heated by inducing a magnetic field generated by the alternative currents. The selection of the frequency and the changeable magnetic field may reduce the cohesion force between the TiBgrains of the Al&#x2014;Ti&#x2014;B alloy to control the average nominal diameter of the TiBcluster.

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A method for cyclically preparing titanium sponge and coproducing sodium cryolite using sodium fluotitanate as an intermediate material, which includes the following steps: A) adding hydrofluoric acid to titaniferous iron concentrate to enable a reaction to form fluotitanic acid; B) adding sodium carbonate and sodium hydroxide to the fluotitanic acid to enable a reaction to form the sodium fluotitanate; C) putting the sodium fluotitanate into a reactor, adding aluminum to react with the sodium fluotitanate to form the titanium sponge and sodium cryolite; D) extracting the sodium cryolite and sending it to a rotary reaction kettle together with concentrated sulphuric acid to enable a reaction to form hydrogen fluoride gas and sodium sulphate, aluminum sodium sulphate; collecting the hydrogen fluoride gas and dissolving it into water to obtain a hydrofluoric acid solution; E) recycling the obtained hydrofluoric acid to Step A to leach the titaniferous iron concentrate.

Method for cyclically preparing titanium sponge and coproducing sodium cryolite using sodium fluotitanate as intermediate material

A method for cyclically preparing titanium sponge and coproducing potassium cryolite using potassium fluotitanate as an intermediate material, which includes the following steps: A) adding hydrofluoric acid to titaniferous iron concentrate to enable a reaction to form fluotitanic acid; B) adding potassium sulphate to the fluotitanic acid to enable a reaction to form the potassium fluotitanate; C) putting the potassium fluotitanate into a reactor, adding aluminum to react with the potassium fluotitanate to form the titanium sponge and potassium cryolite; D) extracting the potassium cryolite and sending it to a rotary reaction kettle together with concentrated sulphuric acid to enable a reaction to form hydrogen fluoride gas and potassium sulphate, aluminum potassium sulphate; collecting the hydrogen fluoride gas and dissolving it into water to obtain a hydrofluoric acid aqueous solution; E) recycling the obtained hydrofluoric acid aqueous solution to Step A to leach the titaniferous iron concentrate.

Method for cyclically preparing titanium sponge and coproducing potassium cryolite using potassium fluotitanate as intermediate material

The present invention relates to the field of magnesium and magnesium alloy processing, and discloses the use of aluminum-zirconium-titanium-carbon (Al&#x2014;Zr&#x2014;Ti&#x2014;C) intermediate alloy in wrought processing of magnesium and magnesium alloys, wherein the aluminum-zirconium-titanium-carbon intermediate alloy has a chemical composition of: 0.01% to 10% Zr, 0.01% to 10% Ti, 0.01% to 0.3% C, and Al in balance, based on weight percentage; the wrought processing is plastic molding; and the use is to refine the grains of magnesium or magnesium alloys. The present invention further discloses the method for using the aluminum-zirconium-titanium-carbon (Al&#x2014;Zr&#x2014;Ti&#x2014;C) intermediate alloy in casting and rolling magnesium and magnesium alloys. The present invention provides an aluminum-zirconium-titanium-carbon (Al&#x2014;Zr&#x2014;Ti&#x2014;C) intermediate alloy and the use thereof in the plastic wrought processing of magnesium or magnesium alloys as a grain refiner. The aluminum-zirconium-titanium-carbon intermediate alloy has the advantages of great ability in nucleation and good grain refining effect, and achieves the continuous and large-scale production of wrought magnesium and magnesium alloy materials.

Use of aluminum&#x2014;zirconium&#x2014;titanium&#x2014;carbon intermediate alloy in wrought processing of magnesium and magnesium alloys

The present invention relates to the field of magnesium and magnesium alloy processing, and discloses a use of aluminum-zirconium-carbon (Al&#x2014;Zr&#x2014;C) intermediate alloy in wrought processing of magnesium and magnesium alloys, wherein the aluminum-zirconium-carbon intermediate alloy has a chemical composition of: 0.01% to 10% Zr, 0.01% to 0.3% C, and Al in balance, based on weight percentage; the wrought processing is plastic molding; and the use is to refine the grains of magnesium or magnesium alloys. The present invention further discloses the method for using the aluminum-zirconium-carbon (Al&#x2014;Zr&#x2014;C) intermediate alloy in casting and rolling magnesium and magnesium alloys. The present invention provides an aluminum-zirconium-carbon (Al&#x2014;Zr&#x2014;C) intermediate alloy and the use thereof in the plastic wrought processing of magnesium or magnesium alloys as a grain refiner. The aluminum-zirconium-carbon intermediate alloy has the advantages of great ability in nucleation and good grain refining effect, and achieves the continuous and large-scale production of wrought magnesium and magnesium alloy materials.

Use of aluminum-zirconium-carbon intermediate alloy in wrought processing of magnesium and magnesium alloys

The present invention discloses a method for producing an aluminum-zirconium-titanium-carbon (Al&#x2014;Zr&#x2014;Ti&#x2014;C) intermediate alloy; the Al&#x2014;Zr&#x2014;Ti&#x2014;C intermediate alloy comprises 0.01% to 10% Zr, 0.01% to 10% Ti, 0.01% to 0.3% C, and Al in balance; the producing method comprising the steps of: preparing commercially pure aluminum, zirconium, titanium, and graphite material according to the weight percentages of the aluminum-zirconium-titanium-carbon intermediate alloy; the graphite powder is subjected to the following treatments: being added to the aqueous solution of KF, NaF, KZrF6, KTiFor the combination thereof, soaked for 12 to 72 hours, filtrated or centrifuged, and dried at 80&#xb0; C. to 200&#xb0; C. for 12 to 24 hours; melting the commercially pure aluminum and keeping it at 700&#xb0; C. to 900&#xb0; C. to provide aluminum liquid, in which the prepared zirconium, the titanium and the treated graphite powder are added and melted to provide an alloy solution; and keeping the alloys solution at 700&#xb0; C. to 900&#xb0; C. under agitation and performing casting molding. The present method produces a high-quality Al&#x2014;Zr&#x2014;Ti&#x2014;C intermediate alloy in low cost.

Method for preparing aluminum&#x2014;zirconium&#x2014;titanium&#x2014;carbon intermediate alloy

The present invention discloses a method for producing an aluminum-zirconium-carbon (Al&#x2014;Zr&#x2014;C) intermediate alloy; the Al&#x2014;Zr&#x2014;C intermediate alloy has a chemical composition of 0.01% to 10% Zr, 0.01% to 0.3% C, and Al in balance; the producing method comprising the steps of: producing commercially pure aluminum, zirconium metal, and graphite material according to the weight percentages of the aluminum-zirconium-carbon intermediate alloy; the graphite is graphite powder having an average particle size of 0.074 mm to 1 mm; and the graphite powder is subjected to the following treatments: being added to the aqueous solution of KF, NaF, K2ZrF6, K2TiF6 or the combination thereof, soaked for 12 to 72 hours, filtrated or centrifuged, and dried at 80&#xb0; C. to 200&#xb0; C. for 12 to 24 hours; melting the commercially pure aluminum and keeping it at 700&#xb0; C. to 900&#xb0; C. to provide aluminum liquid, in which the prepared zirconium and the treated graphite powder are added and melted to provide an alloy solution; and keeping the alloys solution at 700&#xb0; C. to 900&#xb0; C. under mechanical or electromagnetic agitation and performing casting molding. The present method produces a high-quality Al&#x2014;Zr&#x2014;C intermediate alloy in low cost.

Method for producing aluminum-zirconium-carbon intermediate alloy

A cyclic preparation method including the following steps: a) boric acid or boric anhydride is added with hydrofluoric acid and then with potassium sulfate for reaction to generate potassium fluoborate; titanium-iron concentrate is added with hydrofluoric acid and then with potassium sulfate for reaction to generate potassium fluotitanate; B) the potassium fluoborate is mixed with the potassium fluotitanate, and the mixture reacts with aluminum to generate titanium boride and potassium cryolite; C) the potassium cryolite is sucked out and then fed into a rotary reaction kettle together with concentrated sulfuric acid, hydrogen fluoride gas as well as potassium sulfate and potassium aluminum sulfate are generated by reaction in the rotary reaction kettle, and the hydrogen fluoride gas is collected and then dissolved in water to obtain hydrofluoric acid aqueous solution; and D) the obtained hydrofluoric acid aqueous solution and potassium sulfate aqueous solution are recycled.

Cyclic preparation method for producing titanium boride from intermediate feedstock potassium-based titanium-boron-fluorine salt mixture and producing potassium cryolite as byproduct

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Guangdong, China

Yueming Yu