High-temperature metal forging heat preservation device based on dot matrix wrapping blanket

Abstract

The utility model relates to a high-temperature metal forging heat preservation device based on a dot matrix wrapping blanket, and relates to the technical field of high-temperature metal forging heat preservation. The main structure comprises a fiber matrix layer and a dot-matrix bonding layer, one side of the fiber matrix layer is provided with filling holes which are distributed in a dot-matrix array mode, the hole diameter ranges from 3.5 mm to 12 mm, the hole distance ranges from 30 mm to 80 mm, the filling holes are distributed in a staggered mode, the hole diameter gradient is decreased progressively from the center of a blanket body to the edge, the hole diameter of a central area ranges from 3 mm to 10 mm, and the hole diameter of an edge area ranges from 5 mm to 8 mm. The device has excellent heat preservation performance, heat loss can be reduced, and heat distribution is uniform; the structure stability is good, and the dot-matrix bonding layer is tightly combined with the fiber matrix layer; the method has wide adaptability and can adapt to various industrial forging scenes; and optimized material combination advantages are achieved, material performance and cost are balanced, and an efficient heat preservation solution is provided for high-temperature metal forging.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat preservation for high-temperature metal forging, in particular to a high-temperature metal forging heat preservation device based on a dot matrix wrapping blanket. BACKGROUND

[0002] In the process of high-temperature metal forging, the heat preservation performance of the workpiece directly affects the quality and production efficiency of the forged piece. The traditional heat preservation technology mainly has the following limitations:

[0003] Insufficient material temperature resistance: The conventional ceramic fiber blanket (such as pure aluminum silicate fiber) usually has a temperature resistance level lower than 1200℃, and is prone to fiber pulverization or interlayer peeling during titanium alloy and high-temperature alloy forging (forging temperature ≥ 1250℃), resulting in heat preservation failure.

[0004] Poor structural stability: The traditional fiber blanket uses random needle punching or adhesive fixing, and is prone to cracks due to thermal stress at high temperatures, with a local temperature difference of more than 30℃, which seriously affects the uniformity of the forged piece.

[0005] High energy consumption and cost: In order to compensate for rapid temperature drop (conventional process ≥ 3.5℃ / min), frequent reheating is required, which increases the energy consumption of single forged piece by more than 25%, and the hard sleeve (such as graphite mold) has high manufacturing cost and cannot be flexibly attached.

[0006] In view of the above problems, it is urgent to develop a new type of heat preservation device with high temperature resistance and structural stability to break through the bottleneck of precision forging process. CONTENT OF THE INVENTION

[0007] The present application provides a high-temperature metal forging heat preservation device based on a dot matrix wrapping blanket to solve the problems of the prior art.

[0008] To solve the above technical problems, the present application is realized by the following technical scheme: a high-temperature metal forging heat preservation device based on a dot matrix wrapping blanket, comprising a fiber base layer and a dot matrix adhesive layer:

[0009] One side of the fiber base layer is provided with a pouring hole, and the pouring hole is filled with a high-temperature adhesive, which is cooled to form a dot matrix adhesive layer;

[0010] The pouring hole is arranged in a dot matrix array with a hole diameter of 3.5-12mm and a hole spacing of 30-80mm.

[0011] In the present application, the main structure of the heat preservation device is constituted. The fiber matrix layer provides basic high-temperature resistance, chemical corrosion resistance and other performance support, and the dot matrix bonding layer tightly connects the fiber matrix layer to ensure the stability of the overall structure. The two work together to make the heat preservation device maintain its own form in a high-temperature environment and effectively wrap the high-temperature metal to reduce heat loss and provide stable heat preservation conditions for the metal forging process.

[0012] In some specific embodiments, the dot matrix array adopts an interleaved arrangement mode, the offset amount of adjacent rows of hole positions is 2-8 times the hole diameter, the hole diameter gradient decreases from the center to the edge of the blanket, the center area hole diameter is 3-10 mm, and the edge area hole diameter is 5-8 mm, which helps to improve the bonding strength and stability of the bonding layer and the fiber matrix layer, and may have a positive impact on heat preservation performance and other aspects.

[0013] In some specific embodiments, the fiber matrix layer is set as a high-temperature resistant fiber blanket made by continuous cotton laying and double-sided needle punching process, the temperature resistance level is ≥1300℃, the thickness is 5-15mm, and the chemical corrosion resistance meets the industrial application requirements except for hydrofluoric acid, phosphoric acid and strong alkaline environment, highlighting its applicability in high temperature and certain chemical environment, and enhancing the reliability and practicality of the heat preservation device in actual industrial application.

[0014] In some specific embodiments, the high-temperature adhesive is mixed by adhesive, chemical paste and borax solubilizer in a mass ratio of 1-3:2-5:0.02-0.09, so that the composition and performance of the adhesive can be accurately controlled in actual production, the good bonding effect of the dot matrix bonding layer and the fiber matrix layer is ensured, and the overall quality and performance of the heat preservation device are ensured.

[0015] In some specific embodiments, the fiber matrix layer is composed of chemical components with a mass ratio of Al2O3: 34-37%, Si2O: 48-50%, ZrO2: 14-17%, Al2O3+Si2O+ZrO2: ≥99.1, Fe2O3: ≤0.2, and Na2O+K2O: ≤0.2.

[0016] The beneficial effects of the present application are:

[0017] 1. The fiber matrix layer of the heat preservation device adopts a high-temperature resistant fiber blanket with a temperature resistance level of ≥1300℃ and an appropriate thickness, which can ensure good heat preservation effect and is convenient to use. The dot matrix bonding layer is combined with the high-temperature adhesive through a unique dot matrix hole array to form a reinforced anchoring structure, which greatly enhances the bonding force between the adhesive and the fiber matrix, significantly improves the overall stability and durability of the device, effectively prevents problems such as loose structure in high-temperature forging environment, and provides stable heat preservation conditions for metal forging. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main body of the heat preservation device of the present invention.

[0019] Figure 2 This is a partial schematic diagram of the main body of the heat preservation device of the present invention.

[0020] Figure 3 This is a partial cross-sectional schematic diagram of the main body of the heat preservation device of the present invention.

[0021] Figure 4 This is a schematic diagram of the main body of the heat preservation device of the present invention.

[0022] Figures 1 to 4 In the middle: 1. Fiber matrix layer; 11. Injection holes; 2. Dot matrix adhesive layer. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1 to 4 The high-temperature metal forging insulation device based on a dot matrix wrapping blanket is shown, comprising a fiber matrix layer 1 and a dot matrix adhesive layer 2: one side of the fiber matrix layer 1 is provided with an injection hole 11, the injection hole 11 is filled with a high-temperature adhesive, and the high-temperature adhesive is cooled to form a dot matrix adhesive layer 2; the injection hole 11 is set as a dot matrix array with a pore diameter of 3.5-12mm on the surface of the fiber matrix 1, and the pore spacing is 30-80mm.

[0025] The dot matrix array adopts an interlaced arrangement pattern, with the offset between adjacent rows of holes being 2-8 times the hole diameter. The hole diameter gradient decreases from the center of the blanket to the edge, with the hole diameter in the central area being 3-10 mm and the hole diameter in the edge area being 5-8 mm.

[0026] The fiber matrix layer 1 is made of high-temperature resistant fiber blankets produced by continuous cotton shedding and double-sided needle punching process, with a temperature resistance level of ≥1300℃ and a thickness of 5-15mm. Its chemical erosion resistance meets the industrial application requirements except for hydrofluoric acid, phosphoric acid and strong alkaline environments.

[0027] The high-temperature adhesive is made by mixing adhesive, chemical paste, and borax co-solvent in a mass ratio of 1-3:2-5:0.02-0.09.

[0028] The fiber matrix layer is composed of chemical components with mass ratio of Al2O3: 34-37%, Si2O: 48-50%, ZrO2: 14-17%, Al2O3+Si2O+ZrO2: ≥99.1, Fe2O3: ≤0.2, Na2O+K2O: ≤0.2.

[0029] Firstly, the fiber matrix layer 1 is used as a basic structure, which is made of a high-temperature-resistant fiber blanket composed of chemical components with specific mass ratios of Al2O3, Si2O, Si2O, etc., and is made by a continuous cotton-falling paving double-needle punching process, has a temperature resistance level of ≥1300℃, a thickness of 5-15mm, and a chemical corrosion resistance that can meet the requirements of industrial applications except for hydrofluoric acid, phosphoric acid and strong alkaline environment, and provides stable high-temperature resistance and corrosion resistance for the entire device.

[0030] A perfusion hole 11 arranged in a dot matrix array is arranged on one side of the fiber matrix layer 1, the hole diameter is between 3.5-12mm, the hole spacing is 30-80mm, and the staggered arrangement mode is adopted, the offset amount of adjacent rows of hole positions is 2-8 times of the hole diameter, and this arrangement mode can form a uniform and stable dot matrix bonding layer 2 after the high-temperature adhesive is perfused. At the same time, the hole diameter gradient decreases from the center of the blanket to the edge, the center area hole diameter is 3-10mm, and the edge area hole diameter is 5-8mm, and such design helps to achieve more optimized bonding and heat preservation effect when wrapping high-temperature metal according to the heating and stress conditions of different areas.

[0031] The high-temperature adhesive is mixed by a specific mass ratio of 1-3:2-5:0.02-0.09 of the adhesive, the chemical paste and the borax solubilizer, and after being perfused into the perfusion hole 11, it is cooled and solidified to form a dot matrix bonding layer 2. On the one hand, the bonding layer tightly combines the fiber matrix layer to ensure the integrity of the overall structure of the device; on the other hand, during the high-temperature metal forging process, the dot matrix bonding layer 2 cooperates with the fiber matrix layer 1, relies on the heat insulation performance of the high-temperature-resistant fiber blanket and the dispersion and buffering effect of the dot matrix structure on heat, reduces the heat loss to the outside, so as to achieve the purpose of effectively heat preservation for the high-temperature metal forging process, and ensure the stability of the forging process and the metal quality.

[0032] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-temperature metal forging heat preservation device based on dot matrix wrapping blanket, comprising a fiber base layer (1) and a dot matrix bonding layer (2), characterized in that: One side of the fiber base layer (1) is provided with a perfusion hole (11), the inside of the perfusion hole (11) is perfused with a high-temperature adhesive, and the high-temperature adhesive is cooled to form a dot matrix bonding layer (2); The perfusion hole (11) is arranged in a dot matrix array with a hole diameter of 3.5-12mm and a hole spacing of 30-80mm.

2. The dot-matrix blanket based heat retaining device for high-temperature metal forging according to claim 1, characterized in that: The dot matrix array adopts an interlaced arrangement mode, the offset amount of adjacent row hole positions is 2-8 times the hole diameter, the hole diameter gradient decreases from the center to the edge of the blanket body, the hole diameter in the center area is 3-10mm, and the hole diameter in the edge area is 5-8mm.

3. The dot-matrix blanket based heat retaining device for high-temperature metal forging according to claim 1, characterized in that: The fiber base layer (1) is made of a high-temperature resistant fiber blanket made by a continuous cotton falling paving double-sided needle punching process, the temperature resistance grade is ≥1300℃, the thickness is 5-15mm, and the chemical corrosion resistance meets the industrial application requirements except for hydrofluoric acid, phosphoric acid and strong alkaline environment.

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