Steel template surface treatment method and wax spraying device

Abstract

The invention discloses a steel formwork surface treatment method and a wax spraying device, and relates to the technical field of building construction.The steel formwork surface treatment method comprises the steps that firstly, cleaning operation is conducted, specifically, the surface of a steel formwork is cleaned, and the clean steel formwork is obtained; 2, wax spraying operation is conducted, specifically, a layer of wax film with the uniform thickness is sprayed on the surface of the clean steel formwork, and a wax film steel formwork is obtained; 3, polishing operation is conducted, specifically, a wax film on the wax film steel formwork is polished, and a polished steel formwork is obtained; and fourthly, release agent smearing operation is conducted, specifically, a release agent is smeared on the wax film surface of the polished steel formwork, and the steel formwork capable of being used for concrete pouring is obtained. The wax film is sprayed on the steel formwork, the release agent is applied to the wax film, the demolding performance and the concrete surface quality of concrete are improved, the wax film forms a protective film on the surface of the steel formwork, corrosion of water, oxygen and the like to the steel formwork can be prevented, and the service life of the steel formwork is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of construction, and particularly relates to a surface treatment method for steel formwork and a wax spraying device. Background Art

[0002] In construction, steel formwork is widely used in concrete pouring and molding. Among them, before use, a release agent is usually applied to the surface of the steel formwork to ensure that after the pouring operation is completed, the steel formwork can be smoothly separated from the concrete, improving the quality of concrete pouring. However, there are many drawbacks in using only the release agent. For example, most release agents can corrode the steel formwork; after the steel formwork is separated from the concrete, part of the release agent adheres to the surface of the concrete, affecting the appearance of the concrete; some release agents have poor effects, resulting in difficult concrete demolding, increasing the construction difficulty and cost.

[0003] Therefore, researching and developing a new and more efficient surface treatment method and device for steel formwork to reduce the corrosion of the release agent on the steel formwork while improving the concrete demolding effect and efficiency has become a difficult problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a surface treatment method for steel formwork and a wax spraying device, which solve the problems of poor demolding effect, corrosion of the steel formwork, and influence on the appearance quality of concrete when using only the release agent.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a surface treatment method for steel formwork, including the following steps:

[0007] Step 1, cleaning operation: cleaning the surface of the steel formwork to remove oil stains, rust, and dust on the surface of the steel formwork, obtaining a clean steel formwork;

[0008] Step 2, wax spraying operation: spraying a layer of uniformly thick wax film on the surface of the clean steel formwork, and after the wax film is cured, obtaining a wax film steel formwork;

[0009] Step 3, grinding operation: grinding the wax film on the wax film steel formwork to obtain a ground steel formwork;

[0010] Step 4, release agent coating operation: coating a release agent on the wax film surface of the ground steel formwork to obtain a steel formwork that can be used for concrete pouring.

[0011] Specifically, the thickness of the wax film is 0.3 - 0.5 mm.

[0012] A steel formwork surface wax spraying device, comprising: an air pumping pipeline, a wax liquid pumping pipeline and a mixing pumping pipeline. The output end of the air pumping pipeline and the output end of the wax liquid pumping pipeline are both connected to the input end of the mixing pumping pipeline, and the output end of the mixing pumping pipeline is connected to a spray gun.

[0013] Specifically, the air pumping pipeline includes an air regulator and a first pressure pump connected in sequence through pipelines.

[0014] Specifically, the wax liquid pumping pipeline includes a hard wax storage tank and a second pressure pump connected in sequence through pipelines, and a first heater is arranged on the hard wax storage tank.

[0015] Specifically, the mixing pumping pipeline includes a safety valve, a filter, a pressure regulator, a pressure gauge, a second heater, a mixer and a flow meter connected in sequence through pipelines.

[0016] Specifically, a reflux pipeline is also connected between the spray gun and the hard wax storage tank, and a back pressure valve is installed on the reflux pipeline.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0018] Improve the surface quality of concrete: The wax film surface is smooth and will not leave residues on the concrete surface, ensuring that the concrete surface is flat and smooth, which is beneficial to the construction of subsequent decoration processes. Especially when dealing with fair-faced concrete walls or having high quality requirements for the color difference of concrete appearance, the steel formwork surface treatment method provided by the present invention has a large application space.

[0019] Improve the demoulding performance of concrete: The wax film has an extremely low surface tension, which can effectively reduce the adhesion between the concrete and the steel formwork, making the concrete demoulding more smooth, greatly improving the demoulding efficiency, and reducing construction time and costs.

[0020] Protect the steel formwork: The wax film forms a protective film on the surface of the steel formwork, which can prevent the erosion of water, oxygen, etc. to the steel formwork and extend the service life of the steel formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the drawings.

[0022] Figure 1 It is a schematic flow chart of the steel formwork surface treatment method of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the steel formwork surface wax spraying device of the present invention.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. Air pumping pipeline; 2. Wax liquid pumping pipeline; 3. Mixing pumping pipeline; 4. Spray gun; 5. Return pipe; 11. Air regulator; 12. First pressure pump; 21. Hard wax storage tank; 22. Second pressure pump; 23. First heater; 31. Safety valve; 32. Filter; 33. Pressure regulator; 34. Pressure gauge; 35. Second heater; 36. Mixer; 37. Flow meter; 51. Back pressure valve. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Embodiment 1, as Figure 1 As shown, this embodiment provides a steel template surface treatment method, comprising the following steps:

[0027] Step 1: Cleaning: Clean the surface of the steel template to remove oil, rust and dust on the surface of the steel template to obtain a clean steel template;

[0028] Step 2, wax spraying operation: spraying a wax film with uniform thickness on the surface of the clean steel template, and after the wax film is solidified, a wax film steel template is obtained;

[0029] Step 3, grinding operation: grinding the wax film on the wax film steel template to obtain a polished steel template;

[0030] Step 4, mold release agent application operation: apply a mold release agent on the wax film surface of the polished steel formwork to obtain a steel formwork that can be used for concrete pouring.

[0031] Specifically, the wax film has a thickness of 0.3 to 0.5 mm.

[0032] In specific implementation, it is recommended to treat the steel formwork used for the first time with the steel formwork surface treatment method disclosed in steps one to three. The use effect of the steel formwork used for concrete pouring after being treated with the above treatment method is worse than the former.

[0033] Specifically, after spraying the wax film on the surface of the clean steel template, the wax film is left to stand for 5-10 minutes to allow the wax film to cool and solidify naturally.

[0034] In specific implementation, the wax film sprayed on the surface of the steel template can be quality inspected during the wax film curing process to check whether the wax film thickness meets the requirements, whether the wax film coverage is uniform, and whether there is any leakage. If defects are found, repairs or flushing and spraying are carried out in time.

[0035] Specifically, after the polishing operation in Step 3, it is necessary to detect the polishing quality of the wax film. The detection method is to impact the surface of the wax film with a preset force by an impact device. If no wax falls off, the polishing quality is qualified; if wax falls off, the polishing quality is unqualified and re-polishing is required.

[0036] In specific implementation, the operation of hitting the wax film with a hammer can be used instead of using the impact device.

[0037] In specific implementation, the polished steel template obtained in Step 3 can be reused 25 - 35 times. During this period, there is no need to perform the operations of Steps 1 to 3 again, and only the operation of Step 4 needs to be performed on the polished steel template.

[0038] Example 2, as Figure 2 shown, this embodiment provides a wax spraying device for the surface of a steel template that adopts the steel template surface treatment method provided in Example 1, including: an air pumping pipeline 1, a wax liquid pumping pipeline 2, and a mixing pumping pipeline 3. The output end of the air pumping pipeline 1 and the output end of the wax liquid pumping pipeline 2 are both connected to the input end of the mixing pumping pipeline 3, and the output end of the mixing pumping pipeline 3 is connected to a spray gun 4.

[0039] In specific implementation, the nozzle of the spray gun 4 can adopt a fan-shaped nozzle to make the wax liquid be evenly sprayed on the surface of the steel template in a fan shape, ensuring the uniformity of spraying.

[0040] Specifically, the air pumping pipeline 1 includes an air regulator 11 and a first pressure pump 12 that are sequentially connected through pipelines.

[0041] Among them, the air regulator 11 is used to adjust the size of the air volume entering the air pumping pipeline 1.

[0042] Specifically, the wax liquid pumping pipeline 2 includes a hard wax storage tank 21 and a second pressure pump 22 that are sequentially connected through pipelines, and a first heater 23 is provided on the hard wax storage tank 21.

[0043] In specific implementation, the heating temperature of the first heater 23 is set to be controlled at 80°C, which is 20°C higher than the melting point of the hard wax to ensure the melting effect of the hard wax.

[0044] Specifically, the mixing pumping pipeline includes a safety valve 31, a filter 32, a pressure regulator 33, a pressure gauge 34, a second heater 35, a mixer 36, and a flow meter 37 that are sequentially connected through pipelines.

[0045] Specifically, a return pipeline 5 is also connected between the spray gun 4 and the hard wax storage tank 21, and a back pressure valve 51 is installed on the return pipeline 5.

[0046] In specific implementation, place the steel formwork on the workbench, adjust the spray gun 4 to be perpendicular to the steel formwork, and control the distance between the spray gun 4 and the steel formwork within 30 - 40 cm. Conduct the wax film spraying operation in a preset spraying sequence, such as from left to right or from top to bottom, to ensure that the surface of the steel formwork is covered by the wax film.

[0047] After the wax film spraying operation is completed, take out the wax liquid in the hard wax storage tank 21, then inject paraffin cleaning agent into the hard wax storage tank 21. The paraffin cleaning agent pumps through the wax liquid pumping pipeline 2, the mixing pumping pipeline 3, and the pipeline in the reflux pipeline 5 for cleaning. Finally, use clean water to replace the paraffin cleaning agent and repeat the above cleaning operation to remove the residual paraffin cleaning agent in the pipeline. Clean 2 - 3 times until the discharged water is clear.

[0048] It should be noted that in this article, 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 term "comprising", "including" or any other variant thereof is 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 explicitly listed, or further includes elements inherent to such process, method, article or device.

[0049] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A surface treatment method for steel formwork, characterized in that, It includes the following steps: Step 1, cleaning operation: Clean the surface of the steel formwork to remove oil stains, rust and dust on the surface of the steel formwork, and obtain a clean steel formwork; Step 2, wax spraying operation: Spray a layer of wax film with uniform thickness on the surface of the clean steel formwork, and after the wax film is cured, obtain a wax film steel formwork; Step 3, grinding operation: Grind the wax film on the wax film steel formwork to obtain a ground steel formwork; Step 4, release agent coating operation: Coat a release agent on the wax film surface of the ground steel formwork to obtain a steel formwork that can be used for concrete pouring.

2. The surface treatment method of the steel formwork according to claim 1, characterized in that: The thickness of the wax film is 0.3 - 0.5 mm.

3. A steel formwork surface wax spraying device for performing the wax spraying operation in the steel formwork surface treatment method according to any one of claims 1 to 2, characterized in that, It includes: An air pumping pipeline (1), a wax liquid pumping pipeline (2) and a mixing pumping pipeline (3). The output end of the air pumping pipeline (1) and the output end of the wax liquid pumping pipeline (2) are both connected to the input end of the mixing pumping pipeline (3), and the output end of the mixing pumping pipeline (3) is connected to a spray gun (4).

4. The steel formwork surface wax spraying device according to claim 3, wherein: The air pumping pipeline (1) includes an air regulator (11) and a first pressure pump (12) connected in sequence through pipelines.

5. The steel formwork surface wax spraying device according to claim 3, characterized in that: The wax liquid pumping pipeline (2) includes a hard wax storage tank (21) and a second pressure pump (22) connected in sequence through pipelines. A first heater (23) is provided on the hard wax storage tank (21).

6. The steel formwork surface wax spraying device according to claim 3, characterized in that: The mixing pumping pipeline includes a safety valve (31), a filter (32), a pressure regulator (33), a pressure gauge (34), a second heater (35), a mixer (36) and a flow meter (37) connected in sequence through pipelines.

7. The steel formwork surface wax spraying device according to claim 5, characterized in that: A return pipeline (5) is also connected between the spray gun (4) and the hard wax storage tank (21), and a back pressure valve (51) is installed on the return pipeline (5).

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