A hollow composite metal plate member and a method of manufacturing the same

Abstract

The application discloses a kind of composite metal plate components of inner space and preparation method, have several inner space core boxes and outer metal composition, there is inner core boss on inner space core box, there is inner core boss plane on inner core boss, outer metal covers the outer surface of each inner space core box except inner core boss plane, when there is rust prevention requirement, outer metal can use copper, aluminum, stainless steel and the like material, due to light weight, high strength, low cost, can be applied to building outer wall board, top, door board and the like, the occasion that there is requirement to strength and rust prevention performance simultaneously.

Description

Technical Field

[0001] This invention relates to composite metal plates, specifically hollow composite metal plate components. Background Technology

[0002] Plate metal components are commonly used in machinery and daily life. Some require hollow structures to increase rigidity and strength, and sometimes rust resistance is also required. The rust resistance of various metals varies greatly. For example, copper, aluminum, titanium, and stainless steel have excellent rust resistance, but they are expensive. Steel is cheaper, but its rust resistance is poor. Current technology involves coating the steel surface with a layer of metal material with better rust resistance before manufacturing various hollow components. This process is complex and costly. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a hollow composite metal plate component and its preparation method, which effectively overcomes the shortcomings of the prior art.

[0004] The present invention is achieved through the following technical solution: a hollow composite metal plate component, which is composed of several hollow core boxes and an outer metal cladding. The hollow core box is a hollow metal box with an inner core plane, an inner core boss on the inner core plane, and an inner core boss plane on the inner core boss. The outer metal cladding covers the outside of each inner core box except for the inner core boss.

[0005] As a preferred technical solution, the inner core boss has a light hole or screw hole that is perpendicular to the plane of the boss.

[0006] As a preferred technical solution, the material of the inner core boss is the same as the material of the outer metal casing.

[0007] As a preferred technical solution, there are multiple auxiliary bosses.

[0008] As a preferred technical solution, the inner core boss is made of magnetic material.

[0009] As a preferred technical solution, the outer side of the inner core box has a heat insulation layer.

[0010] As a preferred technical solution, the heat insulation layer is aluminum silicate paper.

[0011] As a preferred technical solution, the heat insulation layer is a fire-resistant coating.

[0012] The present invention provides a hollow composite metal plate component, characterized in that it is manufactured according to the following steps:

[0013] a. Install several hollow inner boxes and the upper template together. The upper template has holes corresponding to the screw holes of the hollow inner boxes. A tension screw passes through the hole of the upper template and engages with the screw hole of the hollow inner box. A spring pulls the tension screw upward and makes the protruding plane of the hollow inner box fit with the lower plane of the upper mold. There is a gap between the tension screw and the hole of the upper template, which is sufficient for the displacement distance of the inner box after the outer metal is cooled and contracted.

[0014] b. Below the upper mold assembly is a lower mold, and on the lower mold is a molten metal tank. Molten metal with an outer metal coating is poured into the molten metal tank.

[0015] c. The upper and lower molds are joined together;

[0016] d. Apply pressure between the upper and lower molds after mold closing;

[0017] e. Separate upper and lower molds and hollow composite metal plate components.

[0018] The present invention provides a hollow composite metal plate component, characterized in that it is manufactured according to the following steps:

[0019] a. Several hollow inner boxes and upper templates are attached and installed to form an upper mold assembly. There are magnets on the upper template and the corresponding positions of the magnetically attracted protrusions of the hollow inner boxes. Each hollow inner box has a magnetically attracted protrusion on its upper part.

[0020] b. Below the upper mold assembly is a lower mold, and on the lower mold is a molten metal tank. Molten metal with an outer metal coating is poured into the molten metal tank.

[0021] c. The upper and lower molds are joined together;

[0022] d. Apply pressure between the upper and lower molds after mold closing;

[0023] e. Separate upper and lower molds and hollow composite metal plate components.

[0024] The beneficial effects of this invention are: when there is a requirement for rust prevention, the outer metal can be made of materials such as copper, aluminum, and stainless steel. Due to its light weight, high strength, and low cost, it can be applied to building exterior wall panels, roofs, door panels, etc., in situations where both strength and rust prevention performance are required. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a front view of the composite casting plate of the present invention;

[0027] Figure 2 This is a cross-sectional view of the composite casting plate of the present invention;

[0028] Figure 3 This is a diagram of the screw core box with holes according to the present invention;

[0029] Figure 4 This is a diagram of the magnetically attached core box of the present invention;

[0030] Figure 5 This is an assembly drawing of the core box and upper template of the present invention;

[0031] Figure 6 This is a schematic diagram of the screw with vent hole of the present invention;

[0032] Figure 7 This is a schematic diagram of the liquid forging composite casting plate of the present invention being injected into the lower die.

[0033] Figure 8 This is a schematic diagram of the upper and lower dies and the die itself for the liquid forging composite casting plate of the present invention;

[0034] Figure 9 This is a schematic diagram of the liquid forging composite casting plate of the present invention after mold closing and pressure application;

[0035] Figure 10 This is a schematic diagram showing the liquid forging composite casting plate of the present invention in the state of separation of the upper and lower dies;

[0036] Figure 11 This is a schematic cross-sectional view of the threaded core box composite casting plate of the present invention after forming;

[0037] Figure 12 This is a cross-sectional view of the core box with magnetic boss of the present invention;

[0038] Figure 13 This is a schematic diagram of the composite inner core boss of the present invention;

[0039] Figure 14 This is a schematic diagram of the heat insulation layer added to the core box of the present invention;

[0040] Figure 15 This is a schematic diagram of the core box with an external heat insulation layer component according to the present invention;

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Outer metal casing; 2. Inner core; 3. Inner core with boss; 301. Inner core box; 302. Inner core boss; 303. Screw hole; 304. Inner core boss plane; 305. Inner core plane; 306. Magnetic boss; 307. Magnetic boss plane; 308. Auxiliary boss; 4. Upper template; 401. Bottom plane of upper template; 402. Tensioning screw hole; 403. Spring force surface; 404. Countersunk hole of tensioning screw head; 405. Upper surface of upper mold; 5. Tensioning screw; 501. Thread; 502. Spring force surface; 503. Vent hole; 6. Spring; 7. Lower mold; 701. Solution tank; 8. Liquid metal; 9. Insulation layer. Detailed Implementation

[0043] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0044] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0045] Example 1

[0046] To achieve such Figure 1 and Figure 2 The composite metal plate shown is manufactured with outer metal 1 as the outer metal body and inner core 2 as the inner core box. Several such plates are manufactured. Figure 3 The inner core box 301 shown has an inner core boss 302, screw holes 303, an inner core boss plane 304, and an inner core plane 305. The distance H1 between the two planes, inner core boss plane 304 and inner core plane 305, is the thickness of the outer metal body. Figure 7 and Figure 5 The upper mold plate 4 and several inner core boxes 301 shown also include a lower mold 7. The upper mold plate 4 has countersunk holes 404 and tension screw holes 402 corresponding to each inner core box 301, a spring force surface 403, an upper mold upper plane 405, and an upper mold bottom plane 401. Threads 501 and springs 6 assemble the inner core box 301 with the corresponding holes on the upper mold plate 4. The tension screws 501 are as follows: Figure 6 As shown, there is a thread 501, a spring force plane 502, and a vent hole 503. Assembly details are as follows. Figure 5As shown, the tension screw 5 passes through the tension screw hole 402. The spring force plane 502 and the screw hole 303 are engaged. A spring 6 supports the spring force plane 502 and the inner core boss plane 304, so that the inner core boss plane 304 and the upper template bottom plane 401 are in contact. After the molten metal is poured into the vent hole 503, the core box temperature rises. The air inside the core box expands thermally and is discharged from the vent hole 503. There is a gap A between the tension screw hole 402 and the tension screw 5 passing through it. A is greater than or equal to the distance the core box moves after the composite metal plate is poured and cooled. The specific steps are as follows:

[0047] Step 1: After the inner core box 301 and the upper template 4 are assembled according to the above instructions, they are placed below the lower mold 7, and molten metal is injected into the solution tank 701 in the lower mold 7;

[0048] Step Two: As Figure 8 As shown, the upper mold moves downward and the lower mold closes;

[0049] Step 3: Apply pressure P to the upper mold to induce solidification of the molten metal as follows: Figure 9 As shown, the pressure P can be in a wide range, from 5 MPa to 100 MPa. Depending on the requirements of the application, the minimum pressure test can be determined first.

[0050] Step Four: As Figure 10 As shown, the upper template 4 drives the inner core box 301 and the outer metal cladding 1 to rise and separate from the lower template;

[0051] Step 5: As Figure 11 As shown, the tension screw 5 and spring 6 are removed, separating the upper template 4 and the outer metal cladding 1 to form a composite metal plate with several screw holes.

[0052] Step Six: In the figure, H1 is determined by the thickness of the inner core boss, and H2 is determined by the total amount of injected molten metal. When it is necessary to adjust the size of H2, the total amount of molten metal can be increased or decreased. The screw holes are closed to form a complete composite metal plate. In this embodiment, the inner core box 301 is made of steel plate, the inner core boss 302 is made of aluminum, and the outer cladding metal 1 is made of aluminum. The inner core boss 302 and the outer cladding metal 1 can also be formed by replacing aluminum with materials such as copper or stainless steel.

[0053] The dimensions of the inner core box and its outer cladding include the inner core box side length L, inner core box height H, inner core box spacing L1, distance from the inner core box side edge to the perimeter of the component L2, outer metal thickness H1 and H2 in the height direction of the inner core box, and inner core box material thickness δ (as shown in the figure). Figure 3 The dimensions are generally determined by experiments. In this embodiment, the reference dimensions are L = 200 mm, H = 75 mm, L1 = L2 = 6 mm, H1 = H2 = 5 mm, and δ = 2 mm.

[0054] Example 2

[0055] The inner core box 301 differs from that in Example 1, such as Figure 4 As shown, the inner core box 301 has a magnetically attractable boss 306 and a magnetically attractable boss plane 307. There is a magnet on the bottom plane 401 of the upper mold. The magnetically attractable boss plane 307 on the magnetically attractable boss 306 is attracted and attached to the bottom plane 401 of the upper mold by the magnet. When the molten metal 8 begins to solidify and shrink, the inner core 3 with the boss can be translated with the bottom plane 401 of the upper mold. The magnet can be a permanent magnet or an electromagnet. Ventilation holes can be opened on the inner core box with the magnetically attractable boss 306. There are also corresponding ventilation holes on the upper mold position so that when the temperature of the molten metal is transferred to the air in the inner core box, the heated air is discharged. When the metal outer casing is a non-ferrous metal or stainless steel material that is not magnetically attractable, the magnetically attractable boss 306 can be removed after casting and then filled with a material that is the same as the outer casing metal 1.

[0056] Example 3

[0057] Unlike the above embodiments, as Figure 13 As shown, several auxiliary bosses 308 are distributed on the outside of the inner core boss 302. The upper surface of the auxiliary bosses 308 and the inner core boss plane 304 rest on the bottom plane 401 of the upper template to increase the stability of the inner core box.

[0058] Example 4

[0059] Unlike the above embodiments, a heat insulation layer 9 is wrapped around the outside of the inner core box 301. This layer can be made of aluminum silicate fiber paper and adhered to the outside of the inner core box 301 with heat-resistant adhesive (e.g., ...). Figure 14 As shown), this method eliminates the need for preheating of the inner core box 301, and the final finished component is as follows. Figure 15 As shown, the insulation layer 9 can also be applied by brushing or dipping refractory coating onto the outer surface of the core box and then dried before use.

[0060] Example 5

[0061] Will Figure 11 and Figure 15 The screw holes 303 of the inner core box 301 and the inner core boss 302 in the schematic component are closed to form an integral hollow composite component. The sealing material can be the same as the outer metal and can be connected to the outer metal by bonding or welding.

[0062] Example 6

[0063] When the outer metal cladding is made of rust-proof material, Figure 12 The magnetically attached boss 306 in the middle can be removed by machining and replaced with rust-proof material. The rust-proof material can be connected to the outer metal by bonding or welding.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A hollow composite metal plate component, characterized in that: It consists of several hollow inner boxes and an outer metal casing. The hollow inner box is an inner metal box with an inner core plane, an inner core boss on the inner core plane, and an inner core boss plane on the inner core boss. The outer metal casing covers the outside of each inner box except for the inner core boss.

2. The hollow composite metal plate component according to claim 1, characterized in that: The inner core boss has light holes or screw holes that are perpendicular to the plane of the boss.

3. The hollow composite metal plate component according to claim 1, characterized in that: The material of the inner core boss is the same as the outer metal material.

4. The hollow composite metal plate component according to claim 1, characterized in that: There are multiple auxiliary bosses.

5. The hollow composite metal plate component according to claim 1, characterized in that: The inner core bosses are made of magnetic material.

6. The hollow composite metal plate component according to claim 1, characterized in that: The outer side of the inner core box has a heat insulation layer.

7. The hollow composite metal plate component according to claim 6, characterized in that: The insulation layer is made of aluminum silicate paper.

8. The hollow composite metal plate component according to claim 6, characterized in that: The insulation layer is a fire-resistant coating.

9. A method for preparing a hollow composite metal plate component, characterized in that: Make it according to the following steps: a. Install several hollow inner boxes and the upper template together. The upper template has holes corresponding to the screw holes of the hollow inner boxes. A tension screw passes through the hole of the upper template and engages with the screw hole of the hollow inner box. A spring pulls the tension screw upward and makes the protruding plane of the hollow inner box fit with the lower plane of the upper mold. There is a gap between the tension screw and the hole of the upper template, which is sufficient for the displacement distance of the inner box after the outer metal is cooled and contracted. b. Below the upper mold assembly is a lower mold, and on the lower mold is a molten metal tank. Molten metal with an outer metal coating is poured into the molten metal tank. c. The upper and lower molds are joined together; d. Apply pressure between the upper and lower molds after mold closing; e. Separate upper and lower molds and hollow composite metal plate components.

10. A method for preparing a hollow composite metal plate component, characterized in that: Make it according to the following steps: a. Several hollow inner boxes and upper templates are attached and installed to form an upper mold assembly. There are magnets on the upper template and the corresponding positions of the magnetically attracted protrusions of the hollow inner boxes. Each hollow inner box has a magnetically attracted protrusion on its upper part. b. Below the upper mold assembly is a lower mold, and on the lower mold is a molten metal tank. Molten metal with an outer metal coating is poured into the molten metal tank. c. The upper and lower molds are joined together; d. Apply pressure between the upper and lower molds after mold closing; e. Separate upper and lower molds and hollow composite metal plate components.

Images