Cooker made of aluminum-based composite eutectic material and manufacturing method

Abstract

The invention relates to the technical field of cooker manufacturing, in particular to a cooker made of an aluminum-based composite eutectic material and a manufacturing method, the cooker is manufactured by mixing molten aluminum and magnesium at 900-950 DEG C, melting, performing ultrasonic treatment to obtain a plate, mixing titanium-containing particles and beewax, spraying the surface of the plate with a mixture, performing cold pressing and stamping to obtain the cooker, and performing vacuum calcination to obtain the cooker. The cooker is prepared from titanium-containing particles, magnesium and aluminum, so that the cooker has good yield strength and tensile strength, adapts to various high-temperature operations in life, and can still keep good performance even if the cooker is used for a long time in a complex environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cookware manufacturing, in particular to a kind of cookware made of aluminum-based composite eutectic material and manufacturing method. BACKGROUND

[0002] Aluminum-based composite material can be further divided into two categories of fiber-reinforced and particle-reinforced according to its reinforcing body. Among them, particle-reinforced aluminum-based composite material refers to those whose reinforcing body is equiaxed grain with a diameter of 0.15 to 100 microns. Cookware is a common appliance and utensil in life. With the development of modern science and technology, the manufacturing materials of cookware are constantly changing, mostly iron, aluminum, etc. There are many types of cookware, such as electric rice cookers, microwave ovens, pressure cookers, and frying pans. Aluminum cookware is lighter than iron pots and stainless steel pots of the same volume, heats up quickly, and conducts heat evenly, so it is more popular with users. However, due to the poor mechanical properties of aluminum material, how to improve the mechanical stability of aluminum utensils has become a problem that must be faced.

[0003] Currently, various metals are used on the aluminum alloy substrate, but the heating speed is fast during use, the high and low temperature is frequently changed, the bottom temperature of the aluminum cookware is high, and the thermal stress is higher in this high temperature heating condition, which can easily cause the aluminum cookware bottom to be concave and deformed, affecting the cooking experience and bringing certain safety. SUMMARY

[0004] The present application provides a kind of cookware made of aluminum-based composite eutectic material and manufacturing method to solve the problems in the prior art. By introducing a strengthening component into aluminum to form a eutectic body, the aluminum structure is strengthened, and the use effect of the cookware is improved.

[0005] To solve the above technical problems, the present application solves the problems by the following technical solutions: A kind of cookware made of aluminum-based composite eutectic material, molten aluminum liquid and magnesium are mixed at 900-950 ℃, a strengthening component is blown into the molten body with inert gas, and a plate is made after ultrasonic treatment, and the cookware is made by cold pressing and stamping, and then vacuum calcination is carried out.

[0006] In the above technical solution, preferably, before the aluminum ingot is melted, hexachloromethane is introduced to remove impurities, and the aluminum ingot is softened by heating and softening. Stop inputting hexachloromethane and heat to melt.

[0007] In the above technical solution, preferably, during ultrasonic treatment, the ultrasonic probe spirally swings below the molten body surface.

[0008] In the above technical solution, preferably, the strengthening component is preheated under nitrogen protection before use.

[0009] Preferably, in the technical scheme, the reinforcing component comprises equal mass ratio of a metal component and a silicon-containing compound.

[0010] Preferably, in the technical scheme, the metal component is any one or more of copper, zinc, iron and lithium.

[0011] Preferably, in the technical scheme, the silicon-containing compound is any one or more of silicon nitride and silicon carbide.

[0012] Preferably, in the technical scheme, the inert gas is argon.

[0013] Preferably, in the technical scheme, the cold pressing is performed twice, at a pressure of 233-267 MPa for 50-60 min and at a pressure of 288-299 MPa for 30-40 min.

[0014] A preparation method of a cooker made of an aluminum-based composite eutectic material, comprising the following steps: (1) placing aluminum ingots into a smelting furnace, introducing hexachloromethane, heating to softening deformation of the aluminum ingots, stopping the introduction of hexachloromethane, and continuously heating to 900-950℃ to form molten aluminum liquid; (2) ball-milling a reinforcing component into ultrafine powder, stirring the aluminum liquid, blowing the ultrafine powder into the aluminum liquid with inert gas, immersing an ultrasonic probe below the surface of the molten aluminum liquid, maintaining spiral rotation of the ultrasonic probe to emit ultrasonic waves, controlling the rotation direction of the ultrasonic probe to be opposite to the stirring direction of the aluminum liquid, and ultrasonic treating for 20-40 min to prepare aluminum liquid into a plate; (3) controlling the aluminum liquid temperature to be 700-720℃, continuously ultrasonic treating for 10-13 min, keeping warm for 15-20 min, and using a degassing box and a filtering box to degas and filter; sandblasting a stainless steel plate, cleaning and drying the stainless steel plate, heating the stainless steel plate to 200-300℃, placing the stainless steel plate into a forming mold, controlling a reserved gap on the contact surface of the stainless steel plate and the mold, injecting the aluminum liquid into the mold to completely immerse the stainless steel plate, and solid-liquid roll casting into a composite plate, and starting a cooling device to rapidly cool the circulating water, with a cooling speed of 280-290℃ / s; (4) vacuum heating the plate to 220-240℃ for 33-55 min, and using ethanol to rinse; (5) stamping the plate into a cooker and vacuum calcining at 500-540℃.

[0015] Compared with the prior art, the present application has the following advantages: The cooking utensil is prepared by using magnesium, aluminum and multiple reinforcing components, so that the cooking utensil has good yield strength and tensile strength, can adapt to various high-temperature operations in life, can maintain good performance even after long-time use in complex environment, has strong adhesion of aluminum liquid, has high crystal density after forming a composite material, and has stable mechanical properties of the prepared cooking utensil. DETAILED DESCRIPTION

[0016] The technical solutions of the embodiments of the present application are described below clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the described embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0017] Embodiment 1, a preparation method of a cooking utensil made of aluminum-based composite eutectic material includes the following steps: (1) Put aluminum ingot into a smelting furnace, pass in hexachloromethane, heat to softening deformation of the aluminum ingot, stop passing in hexachloromethane, continuously heat to 900℃ to form molten aluminum liquid; (2) Ball mill the reinforcing components into superfine powder, agitate the aluminum liquid, blow the superfine powder into the aluminum liquid with inert gas, immerse the ultrasonic probe below the surface of the molten aluminum liquid, keep the ultrasonic probe rotating spirally to emit ultrasonic waves, control the rotating direction of the ultrasonic probe to be opposite to the agitation direction of the aluminum liquid, ultrasonic treatment for 20-40 min, and prepare the aluminum liquid into a plate; The reinforcing components are used after preheating under nitrogen protection, the reinforcing components are composed of metal components and silicon-containing compounds in equal mass ratio, the metal components are copper, zinc, iron and lithium in equal proportion, the silicon-containing compounds are silicon nitride and silicon carbide in equal proportion, and the inert gas is argon.

[0018] (3) Control the aluminum liquid temperature to be 700℃, continuously treat with ultrasonic waves for 10 min, keep warm for 15 min, use a degassing box and a filtering box to degas and filter; after sand blasting treatment, cleaning and drying, heat the stainless steel plate to 200℃, put it into a forming mold, control the reserved gap on the contact surface of the stainless steel plate and the mold, pour the aluminum liquid into the mold to make the aluminum liquid completely immerse the stainless steel plate, solid-liquid roll to form a composite plate, start the cooling equipment to rapidly cool the circulating water, and the cooling speed is 280℃ / s; (4) Vacuum heat the plate to 220℃ for 33 min, and use ethanol to rinse; (5) After stamping the plate into a cooking utensil, vacuum calcine it at 500℃.

[0019] Embodiment 2, a preparation method of a cooking utensil made of aluminum-based composite eutectic material includes the following steps: (1) Put aluminum ingot into smelting furnace, pass in hexachloromethane, heat to softening deformation of aluminum ingot, stop passing in hexachloromethane, continuously heat to 950℃ to melt to form molten aluminum liquid; (2) Ball mill the strengthening component into superfine powder, agitate the aluminum liquid, blow the superfine powder into the aluminum liquid with inert gas, deeply put the ultrasonic probe below the surface of the molten aluminum liquid, keep the ultrasonic probe spirally rotating to emit ultrasonic wave, control the rotating direction of the ultrasonic probe to be opposite to the agitation direction of the aluminum liquid, ultrasonic wave treatment for 40 min, make the aluminum liquid into plate; wherein, the strengthening component is used after preheating under nitrogen protection, the strengthening component is composed of metal component and silicon-containing compound with equal mass ratio, the metal component is copper, zinc, iron and lithium with equal proportion; the silicon-containing compound is composed of silicon nitride and silicon carbide with equal proportion; the inert gas is argon.

[0020] (3) Control the temperature of the aluminum liquid to be 720℃, continuously use ultrasonic wave treatment for 13 min, keep warm for 20 min, use degassing tank and filtering tank to degas and filter; after sand blasting treatment, cleaning and drying, heat the stainless steel plate to 300℃, put it into forming mold, control the reserved gap of the contact surface of the stainless steel plate and the mold, pour the aluminum liquid into the mold, make the aluminum liquid completely immerse the stainless steel plate, solid-liquid cast roll to form composite plate, start the cooling equipment to rapidly cool the circulating water, the cooling speed is 290℃ / s; (4) Vacuum heat the plate to 240℃ for 55 min, use ethanol to rinse; (5) After stamping the plate into cookware, vacuum calcine at 540℃.

[0021] Example 3, a preparation method of cookware made of aluminum-based composite eutectic material, comprises the following steps: (1) Put aluminum ingot into smelting furnace, pass in hexachloromethane, heat to softening deformation of aluminum ingot, stop passing in hexachloromethane, continuously heat to 950℃ to melt to form molten aluminum liquid; (2) Ball mill the strengthening component into superfine powder, agitate the aluminum liquid, blow the superfine powder into the aluminum liquid with inert gas, deeply put the ultrasonic probe below the surface of the molten aluminum liquid, keep the ultrasonic probe spirally rotating to emit ultrasonic wave, control the rotating direction of the ultrasonic probe to be opposite to the agitation direction of the aluminum liquid, ultrasonic wave treatment for 40 min, make the aluminum liquid into plate; wherein, the strengthening component is used after preheating under nitrogen protection, the strengthening component is composed of metal component and silicon-containing compound with equal mass ratio, the metal component is copper, zinc, iron and lithium with equal proportion; the silicon-containing compound is composed of silicon nitride and silicon carbide with equal proportion; the inert gas is argon.

[0022] (3) Control the temperature of the molten aluminum at 700℃, continuously treat with ultrasonic wave for 13 min, keep warm for 15 min, use degassing tank and filter tank to degas and filter; spray sand on the stainless steel plate, clean and dry, then heat the stainless steel plate to 300℃, put it into the forming mold, control the reserved gap on the contact surface of the stainless steel plate and the mold, pour the molten aluminum into the mold, so that the molten aluminum completely immerse the stainless steel plate, solid-liquid cast rolling to form the composite plate, start the cooling equipment to rapidly cool the circulating water, the cooling speed is 280-290℃ / s; (4) Vacuum heat the plate to 240℃ for 55 min, and rinse with ethanol; (5) After stamping the plate into a cooker, vacuum calcine at 540℃.

[0023] Example 4, a preparation method of a cooker made of an aluminum-based composite eutectic material includes the following steps: (1) Put the aluminum ingot into a smelting furnace, pass in hexachloromethane, heat to softening deformation of the aluminum ingot, stop passing in hexachloromethane, continuously heat to 930℃ to form molten aluminum liquid; (2) Ball mill the strengthening component into ultrafine powder, agitate the aluminum liquid, blow the ultrafine powder into the aluminum liquid with inert gas, put the ultrasonic wave probe below the surface of the molten aluminum liquid, keep the spiral rotation of the ultrasonic wave probe to emit ultrasonic wave, control the rotation direction of the ultrasonic wave probe to be opposite to the agitation direction of the aluminum liquid, ultrasonic wave treatment for 20-40 min, and make the aluminum liquid into a plate; wherein, the strengthening component is used after preheating under nitrogen protection, the strengthening component is composed of equal mass ratio of metal components and silicon-containing compounds, the metal components are copper, zinc, iron and lithium in equal proportion; the silicon-containing compounds are silicon nitride and silicon carbide in equal proportion; the inert gas is argon.

[0024] (3) Control the temperature of the molten aluminum at 720℃, continuously treat with ultrasonic wave for 13 min, keep warm for 15 min, use degassing tank and filter tank to degas and filter; spray sand on the stainless steel plate, clean and dry, then heat the stainless steel plate to 250℃, put it into the forming mold, control the reserved gap on the contact surface of the stainless steel plate and the mold, pour the molten aluminum into the mold, so that the molten aluminum completely immerse the stainless steel plate, solid-liquid cast rolling to form the composite plate, start the cooling equipment to rapidly cool the circulating water, the cooling speed is 280℃ / s; (4) Vacuum heat the plate to 220℃ for 33 min, and rinse with ethanol; (5) After stamping the plate into a cooker, vacuum calcine at 500℃.

[0025] Example 5, a preparation method of a cooker made of an aluminum-based composite eutectic material includes the following steps: (1) Put the aluminum ingot into the smelting furnace, pass in hexachloromethane, heat to softening deformation of the aluminum ingot, stop passing in hexachloromethane, continue heating to 940℃ to form molten aluminum liquid; (2) Ball mill the reinforcing component into superfine powder, agitate the aluminum liquid, blow the superfine powder into the aluminum liquid with inert gas, put the ultrasonic probe into the molten aluminum liquid below the liquid surface, keep the ultrasonic probe spirally rotating to emit ultrasonic waves, control the rotating direction of the ultrasonic probe to be opposite to the agitation direction of the aluminum liquid, ultrasonic treatment for 30 min, and make the aluminum liquid into a plate; wherein the reinforcing component is used after preheating under nitrogen protection, the reinforcing component is composed of metal components and silicon-containing compounds in equal mass ratio, the metal components are copper, zinc, iron and lithium in equal proportion; the silicon-containing compounds are silicon nitride and silicon carbide in equal proportion; the inert gas is argon.

[0026] (3) Control the aluminum liquid temperature to 720℃, continue ultrasonic treatment for 10 min, keep warm for 20 min, use degassing box and filter box to degas and filter; after sand blasting treatment, cleaning and drying, heat the stainless steel plate to 300℃, put it into the forming mold, control the reserved gap of the contact surface of the stainless steel plate and the mold, pour the aluminum liquid into the mold, so that the aluminum liquid completely immerses the stainless steel plate, solid-liquid cast rolling into a composite plate, start the cooling equipment to rapidly cool the circulating water, and the cooling speed is 290℃ / s; (4) Vacuum heat the plate to 240℃ for 55 min, and use ethanol to rinse; (5) After stamping the plate into a cooker, vacuum calcine at 540℃.

Claims

1. A cooker made of an aluminum-based composite eutectic material, characterized in that molten aluminum and magnesium are mixed at 900-950℃, a reinforcing component is blown into the molten body by inert gas, a plate is made after ultrasonic treatment, and the plate is cold-pressed, punched into a cooker, and vacuum calcined.

2. The cookware of claim 1 wherein the cookware is made of an aluminum matrix composite eutectic material. The molten aluminum is first purged with hexachloromethane to remove impurities before the aluminum ingot is melted, and the purging continues until the aluminum ingot is softened by heating and softening, the hexachloromethane input is stopped, and heating is continued until melting.

3. The cookware of claim 1 wherein the cookware is made of an aluminum matrix composite eutectic material. During the ultrasonic treatment, the ultrasonic probe is spirally oscillated below the surface of the molten body.

4. The cookware of claim 1 wherein the cookware is made of an aluminum matrix composite eutectic material. The reinforcing component is preheated under nitrogen protection before use.

5. The cookware of claim 1 wherein the cookware is made of an aluminum matrix composite eutectic material, and wherein the cookware is characterized by: The reinforcing component comprises metal components and silicon-containing compounds in equal mass ratio.

6. The cookware of claim 3 wherein the cookware is made of an aluminum matrix composite eutectic material. The metal component is any one or more of copper, zinc, iron, and lithium.

7. The cookware of claim 3 wherein the cookware is made of an aluminum matrix composite eutectic material. The silicon-containing compound is any one or more of silicon nitride and silicon carbide.

8. The cookware of claim 1 wherein the cookware is made of an aluminum matrix composite eutectic material. The inert gas is argon.

9. The cookware of claim 1 wherein the cookware is made of an aluminum matrix composite eutectic material. The cold pressing is performed in two steps, at a pressure of 233-267 MPa for 50-60 min and at a pressure of 288-299 MPa for 30-40 min.

10. A method of making a cookware from the aluminum matrix composite eutectic material of claim 1, characterized in that, The process comprises the following steps: (1) Put the aluminum ingot into a melting furnace, purge with hexachloromethane, heat until the aluminum ingot is softened and deformed, stop purging with hexachloromethane, and continue heating until melting at 900-950℃ to form a molten aluminum liquid; (2) Ball mill the reinforcing component into ultrafine powder, stir the aluminum liquid, blow the ultrafine powder into the aluminum liquid with inert gas, immerse the ultrasonic probe below the surface of the molten aluminum liquid, keep the ultrasonic probe spirally rotating to emit ultrasonic waves, control the rotation direction of the ultrasonic probe to be opposite to the stirring direction of the aluminum liquid, ultrasonic treatment for 20-40 min, and keep the aluminum liquid at temperature; (3) Control the aluminum liquid temperature at 700-720℃, continue ultrasonic treatment for 10-13 min, keep at temperature for 15-20 min, use a degassing box and a filtering box to degas and filter; sandblast a stainless steel plate, clean and dry, heat the stainless steel plate to 200-300℃, put it into a forming mold, control the gap between the stainless steel plate and the mold, pour the aluminum liquid into the mold so that the aluminum liquid completely immerses the stainless steel plate, solid-liquid roll the composite plate, start the cooling equipment to rapidly cool the circulating water, and the cooling speed is 280-290℃ / s; (4) Vacuum heat the plate to 220-240℃ for 33-55 min, and rinse with ethanol; (5) Punch the plate into a cooker and vacuum calcine at 500-540℃.