High polymer material and high-strength alloy steel material compounded building template and preparation process thereof

Abstract

The invention relates to the technical field of templates for building construction, in particular to a high polymer material and high-strength alloy steel material compounded building template and a preparation process thereof.The high polymer material and high-strength alloy steel material compounded building template comprises a panel main body, frames and back reinforcing ribs, the frames are fixed to the four sides of the panel main body, the panel main body is made of a 1.5 mm high-strength alloy steel plate, and the back reinforcing ribs are fixed to the back of the panel main body; the frame is formed by cold bending of a 2.0 mm high-strength alloy steel plate, and a plurality of through holes are formed in the peripheral side of the frame. The structure is light in weight, high in specific strength, free of cement adhesion, rustless, resistant to abrasion, resistant to corrosion and long in service life, and the labor cost of brushing a release agent and the material cost of the release agent on a construction site are omitted; and the construction efficiency and the template turnover frequency are greatly improved, and the factory turnover renovation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of formwork for building construction, and specifically to a building formwork composed of a composite of a polymer material and a high-strength alloy steel material and a preparation process therefor. Background Art

[0002] In the field of building construction, formwork is an important tool for concrete pouring and forming, and its performance directly affects construction quality, cost and efficiency.

[0003] Currently, commonly used wooden formwork, steel formwork, aluminum formwork and plastic formwork on the market all have certain limitations:

[0004] Wooden formwork: Although the initial investment cost is low and the adaptability is strong, its strength is low, the reinforcement and on-site construction are cumbersome, the forming quality is poor, and problems such as misalignment, leakage of mortar, and bulging are likely to occur. At the same time, it is easily worn, with a turnover number of only 8 times, and it cannot be refurbished or recycled. It also requires frequent brushing of release agents, which not only wastes materials and damages the ecology, but also increases construction costs and reduces construction efficiency.

[0005] Steel formwork: The formwork has high strength and a turnover number of up to 160 times, but it is heavy, the construction and installation operation is difficult, the dependence on machinery is high, and the safety factor is low. Moreover, it is easily deformed and needs to be returned to the factory for correction, is easily rusted, and the refurbishment, maintenance and upkeep costs are high. A release agent needs to be brushed every time it is turned over, increasing costs and reducing efficiency.

[0006] Aluminum alloy formwork: It is lighter in weight than steel formwork, with a turnover number of 120 times, moisture-resistant and high in precision. However, its initial material investment cost and subsequent costs for returning to the factory for refurbishment, maintenance and upkeep are high. During construction, it is prone to oxidation reaction with cement, resulting in pockmarks and pores on the wall surface. It also requires frequent brushing of release agents, affecting construction costs and efficiency.

[0007] Plastic formwork: It is light in weight and convenient to use, but it is easily deformed, the forming quality is uncontrollable, and the turnover number is only 30 times. The formwork size is fixed, non-standard formwork needs to be used in combination with other formwork, and the environmental assessment requirements for large-scale equipment required for production are high. A release agent also needs to be brushed every time it is turned over, increasing costs and labor intensity.

[0008] In view of the above deficiencies of traditional formwork, it is extremely urgent to develop a formwork with better comprehensive performance. Summary of the Invention

[0009] (1) Technical Problems to be Solved

[0010] In view of the deficiencies of the prior art, the present invention provides a building formwork composed of a composite of a polymer material and a high-strength alloy steel material and a preparation process therefor.

[0011] (2) Technical Solutions

[0012] To achieve the above object, the present invention provides the following technical solutions: a building formwork composed of a polymer material and a high-strength alloy steel material, including a panel body, a frame, and a rear reinforcing rib. The frame is fixed on the four sides of the panel body. The panel body is made of a 1.5 mm high-strength alloy steel plate, and the frame is cold-formed from a 2.0 mm high-strength alloy steel plate. A plurality of through holes are provided on the peripheral side of the frame. The surface of the building formwork is sprayed with a polymer powder material after being heated by a high-temperature device. The polymer powder material consists of the following parts: the high-strength alloy steel material accounts for 92%-97%, and the polymer powder material accounts for 3%-8%.

[0013] Further, the improvement of the present invention is that the rear reinforcing rib adopts high-strength square tubes with dimensions of 20*40*0.9 and 20*60*0.9.

[0014] Further, the improvement of the present invention is that the standard frame of the formwork structure is of the 65 series, and the hole distance between a plurality of through holes is 50 cm.

[0015] Further, the improvement of the present invention is that the formwork can be used in mixed assembly with steel formworks, plastic formworks, and aluminum alloy formworks on the market.

[0016] The preparation process of the building formwork composed of a polymer material and a high-strength alloy steel material includes the following steps:

[0017] The first step: raw material preparation;

[0018] The second step: formwork forming;

[0019] The third step: surface compounding;

[0020] The fourth step: quality inspection;

[0021] The fifth step: packaging and warehousing.

[0022] Further, the improvement of the present invention is that the raw material preparation includes the following steps:

[0023] Prepare high-strength alloy steel materials with a yield strength and a tensile strength of more than 700 mpa;

[0024] Prepare polymer powder materials;

[0025] The formwork forming includes the following steps:

[0026] Cutting;

[0027] Stamping;

[0028] Welding;

[0029] The surface compounding includes the following steps:

[0030] Preheating in the front furnace;

[0031] Spray polymer materials;

[0032] Secondary baking;

[0033] Quality inspection includes the following steps:

[0034] Appearance inspection;

[0035] Dimensional inspection;

[0036] Performance inspection.

[0037] (III) Beneficial effects

[0038] Compared with the prior art, the present invention provides a building formwork and a preparation process thereof which are composed of a polymer material and a high-strength alloy steel material, and have the following beneficial effects:

[0039] Combination of light weight and high strength: The composite building formwork is light in weight, comparable to an aluminum alloy formwork, and is more convenient to handle and install during construction, which can effectively reduce the labor intensity of construction workers and reduce the safety risks caused by the overweight formwork. At the same time, the formwork uses high-strength alloy steel with a yield strength and tensile strength above 700 mpa as the main material, combined with the polymer material composite process, to achieve the characteristic of high specific strength, and can meet the construction requirements of various building projects while ensuring the structural strength, and guarantee the construction safety and building quality.

[0040] Excellent surface performance: The polymer material compounded on the surface of the formwork endows it with the property of not sticking to cement. After the concrete is poured, the adhesion between the formwork and the cement is extremely small, and the demoulding process is easy and smooth, effectively avoiding the damage to the surface of the formwork caused by cement residue. It not only maintains the smoothness of the formwork surface, but also reduces the wear of the formwork caused by cement adhesion, and improves the wear resistance of the formwork. At the same time, the protective effect of the polymer material isolates the contact between air, moisture and high-strength alloy steel, making the formwork have good anti-corrosion performance, not rusting, greatly extending the service life of the formwork, reducing the formwork replacement frequency, and reducing the long-term cost input of building projects.

[0041] Significant economic and efficiency advantages: Due to the property of the formwork not sticking to cement, the process of brushing release agent can be omitted at the construction site, which not only saves the material cost of the release agent, but also eliminates the cost of manual brushing of the release agent, directly reducing the construction cost. At the same time, the easy demoulding process greatly improves the construction efficiency, reduces the formwork disassembly time, and speeds up the construction progress. In addition, the wear-resistant, anti-corrosion and non-cement-sticking characteristics of the formwork greatly increase its turnover times, reduce the frequency of returning to the factory for turnover and renovation, further save the renovation cost, and bring significant economic benefits to the construction party throughout the building project cycle. Description of the drawings

[0042] Figure 1Schematic diagram of the three-dimensional structure of the present invention;

[0043] Figure 2 For the present invention Figure 1 front view;

[0044] Figure 3 For the present invention Figure 1 side view;

[0045] Figure 4 For the present invention Figure 1 top view;

[0046] In the figure: 1, panel main body; 2, frame; 3, rear reinforcing rib; 4, through hole. Specific embodiments

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] Please refer to Figures 1-4 , the building formwork composed of a composite of a polymer material and a high-strength alloy steel material of the present invention includes a panel main body 1, a frame 2 and a rear reinforcing rib 3. The frame 2 is fixed on the four sides of the panel main body 1. The panel main body 1 is made of a 1.5 mm high-strength alloy steel plate, and the frame 2 is cold-formed from a 2.0 mm high-strength alloy steel plate. A plurality of through holes 4 are provided on the peripheral side of the frame 2. The surface of the building formwork is sprayed with a polymer powder material after being heated by a high-temperature device. The polymer powder material consists of the following parts: the high-strength alloy steel material accounts for 92%-97%, and the polymer powder material accounts for 3%-8%.

[0049] The rear reinforcing rib 3 adopts high-strength square tubes with dimensions of 20*40*0.9 and 20*60*0.9.

[0050] The specification of the frame 2 of this formwork structure is 65 series, and the hole distance between a plurality of through holes 4 is 50 cm.

[0051] The formwork can be used in mixed assembly with steel formworks, plastic formworks, and aluminum alloy formworks on the market.

[0052] The preparation process of the building formwork composed of a composite of a polymer material and a high-strength alloy steel material includes the following steps:

[0053] The first step: raw material preparation;

[0054] The second step: formwork forming;

[0055] Step 3: Surface composite;

[0056] Step 4: Quality inspection;

[0057] Step 5: Packaging and warehousing.

[0058] The raw material preparation includes the following steps:

[0059] Prepare high-strength alloy steel materials with a yield strength and tensile strength above 700 mpa: Calculate the required amount of steel according to the template design specifications and dimensional requirements to ensure that the steel quality meets the relevant standards;

[0060] Prepare polymer powder materials: Select the appropriate type of polymer powder materials according to the product performance requirements, such as polymer materials with wear resistance, corrosion resistance, waterproof and other properties. Determine the amount of polymer powder materials so that its proportion in the composite building template is 3%-8%, which can be adjusted according to the specific requirements of the product;

[0061] The template forming includes the following steps:

[0062] Cutting: According to the design dimensions and shapes of the building templates, use appropriate cutting equipment (such as laser cutting machines) to cut the high-strength alloy steel materials to ensure that the cutting dimensional accuracy is within the allowable range;

[0063] Stamping: Place the cut high-strength alloy steel plates on the stamping equipment and stamp them into the design shapes of the templates. Pay attention to controlling the stamping pressure and stamping speed during the stamping process to ensure the shape accuracy and surface quality of the templates;

[0064] Welding: For the template parts that need to be spliced, use appropriate welding processes (such as laser welding, carbon dioxide gas shielded welding, etc.) for welding. Pay attention to controlling the welding parameters during the welding process, such as welding current, voltage, welding speed, etc., to ensure the welding quality and avoid welding defects (such as pores, cracks, incomplete penetration, etc.). After welding, grind the welds to make the template surface flat and smooth;

[0065] The surface composite includes the following steps:

[0066] Preheating in the front furnace: Place the formed high-strength alloy steel templates in the preheating equipment (front furnace) on the production line, set the appropriate preheating temperature and preheating time, and perform preheating treatment on the templates. The preheating temperature is generally controlled below the melting point of the polymer powder materials, and the preheating time is adjusted according to the thickness and size of the templates to ensure that the surface temperature of the templates is uniform and prepare for the subsequent spraying;

[0067] Spraying polymer material: The preheated template in the front furnace is conveyed to the powder room through the assembly line chain, and the polymer powder material is evenly sprayed on the surface of the template using spraying equipment. During the spraying process, the spraying pressure, spraying distance, and spraying angle should be well controlled to ensure that the spraying thickness of the polymer powder material is uniform. The spraying thickness is adjusted according to the product requirements and is generally controlled within the range that meets the composite ratio requirements;

[0068] Secondary baking: The template sprayed with polymer material is conveyed to the rear furnace through the assembly line chain for secondary baking. The baking temperature and time are set according to the characteristics of the polymer powder material. During the baking process, it is necessary to ensure that the polymer powder material on the surface of the template is fully melted and firmly bonded to the surface of the high-strength alloy steel template to form a uniform and dense composite layer. After the secondary baking is completed, the template is taken out from the baking assembly line chain and naturally cooled to room temperature;

[0069] Quality inspection includes the following steps:

[0070] Appearance inspection: Check the surface quality of the composite building formwork, observe whether the surface is flat and smooth, and whether there are defects such as bubbles, cracks, and missed spraying;

[0071] Dimension inspection: Use measuring tools (such as calipers, tape measures, etc.) to measure the dimensions of the formwork, check whether the dimensions of the formwork meet the design requirements, and whether the dimensional deviation is within the allowable range;

[0072] Performance inspection: Conduct performance tests on the composite building formwork, such as detecting performance indicators such as the yield strength, tensile strength, wear resistance, and corrosion resistance of the formwork, to ensure that the performance of the formwork meets the product standards and usage requirements.

[0073] In the description of this article, it should be noted that relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article, or device.

[0074] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A building formwork composed of a composite of a polymer material and a high-strength alloy steel material, characterized in that: It includes a panel body (1), a frame (2) and a rear reinforcing rib (3). The frame (2) is fixed on the four sides of the panel body (1). The panel body (1) is made of 1.5 mm high-strength alloy steel plate. The frame (2) is cold-formed from 2.0 mm high-strength alloy steel plate. A plurality of through holes (4) are provided on the circumferential side of the frame (2). The surface of the building formwork is sprayed with a polymer powder material after being heated by a high-temperature device. The polymer powder material consists of the following parts: the high-strength alloy steel material accounts for 92%-97%, and the polymer powder material accounts for 3%-8%.

2. The building formwork composed of a composite of a polymer material and a high-strength alloy steel material according to claim 1, wherein: The rear reinforcing rib (3) uses high-strength square tubes with dimensions of 20*40*0.9 and 20*60*0.

9.

3. The building formwork composed of a composite of the polymer material and the high-strength alloy steel material according to claim 2, characterized in that: The specification of the frame (2) in the formwork structure is 65 series, and the hole pitch between a plurality of through holes (4) is 50 cm.

4. The building formwork composed of a composite of a polymer material and a high-strength alloy steel material according to claim 3, characterized in that: The formwork can be assembled and used in combination with steel formworks, plastic formworks, and aluminum alloy formworks on the market.

5. The preparation process of the building formwork composed of polymer materials and high-strength alloy steel materials is used to implement the building formwork composed of polymer materials and high-strength alloy steel materials as described in any one of claims 1-4, characterized in that: It includes the following steps: The first step: raw material preparation; The second step: formwork forming; The third step: surface compounding; The fourth step: quality inspection; The fifth step: packaging and warehousing.

6. The preparation process of the building formwork compounded with the polymer material and the high-strength alloy steel material according to claim 5, characterized in that: The raw material preparation includes the following steps: Prepare high-strength alloy steel materials with a yield strength and a tensile strength above 700 mpa; Prepare polymer powder materials; The formwork forming includes the following steps: Cutting; Stamping; Welding; The surface compounding includes the following steps: Preheating in the front furnace; Spraying polymer materials; Secondary baking; The quality inspection includes the following steps: Appearance inspection; Dimension inspection; Performance inspection.

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