Door and window glue injection rapid curing method
By using a precise temperature and speed control method involving a series curing oven and a cooling oven, the problem of slow curing speed of two-component polyurethane corner adhesive was solved, achieving rapid curing and improving the production efficiency of doors and windows.
Patent Information
- Application Number
- CN202511866889.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-02-10
AI Technical Summary
Existing two-component polyurethane corner adhesives have a slow curing speed at room temperature, especially at low temperatures, resulting in low production efficiency for doors and windows and the inability to carry out subsequent processing in a timely manner.
The design employs a rapid curing method with precise temperature and speed control. By connecting a curing oven and a cooling oven in series and combining them with a conveying mechanism, temperature, time, and speed are accurately calculated to achieve rapid heating, curing, and cooling, thus shortening the curing time.
The curing time of corner adhesive is significantly shortened to within 10 minutes, improving the production efficiency of doors and windows and meeting the needs of subsequent processing.
Smart Images

Figure CN121491005A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of door and window adhesive injection technology, and in particular to a method for rapid curing of door and window adhesive. Background Technology
[0002] Corner joint adhesive, also known as corner structural adhesive or corner structural sealant, is a professional adhesive with polyurethane as its main component. It is specifically used for bonding and sealing corner-type doors and windows and is a product regulated by the industry standard "Corner Structural Sealants for Building Doors and Windows" (JC / T2560—2020). Unlike ordinary sealants, corner joint adhesive is only suitable for bonding the corner brackets of doors and windows to the cavity walls of the profiles, such as aluminum alloy and thermally broken aluminum doors and windows.
[0003] After corner assembly, door and window profiles require adhesive injection. This involves injecting adhesive through injection holes between the corner bracket and the profile cavity wall to fully fill and bond the area, thus strengthening the structure and providing a seal. Currently, corner adhesives can be categorized into single-component and two-component types. Single-component corner adhesives primarily rely on moisture for curing, typically requiring over 20 days for complete curing, and their structural strength is relatively low. Two-component corner adhesives, on the other hand, use components A and B for direct reaction curing, eliminating the need for moisture. They offer advantages such as faster curing speed and higher strength. Therefore, most door and window manufacturers use two-component polyurethane corner adhesives for injection in actual production.
[0004] Although two-component polyurethane corner adhesive cures faster than single-component corner adhesive, surface drying at room temperature typically takes about 0.5 hours, and reaching basic strength usually requires 24 to 48 hours. Complete curing may take about 7 days, and this time will be further extended at low temperatures. In actual production, to ensure the cured strength meets the requirements for subsequent processing of doors and windows (corner doors and windows need to be fixed with pressure plates after adhesive application, and these plates can only be removed for subsequent processing after the corner adhesive has cured; the purpose is to use the corner adhesive to flatten and reinforce the structure of the corner doors and windows), most door and window manufacturers require about 8 to 12 hours of curing in summer (when temperatures reach around 30℃), and typically 12 to 24 hours in winter before they can be moved to the next step. In regions like Northeast China, it can take 48 hours or even longer in winter. During the curing process, subsequent processing of doors and windows is impossible, and the long curing time severely restricts door and window production efficiency. Summary of the Invention
[0005] This invention provides a rapid curing method for door and window adhesive injection, solving the problems existing in the prior art. By analyzing and combining the characteristics of door and window profiles and corner adhesives, a rapid curing method with precise temperature and speed control is designed, significantly improving the curing speed of corner adhesives. The entire door and window adhesive injection and curing process can generally be completed within 10 minutes, significantly shortening the curing waiting time and greatly improving the production efficiency of doors and windows.
[0006] One of the technical solutions adopted in this invention is: A method for rapid curing of adhesive applied to doors and windows includes a curing oven and a cooling oven connected in series. Each curing oven and cooling oven is equipped with a conveying mechanism for transporting the applied adhesive to the doors and windows. The temperature inside the curing oven and cooling oven is adjustable, and the conveying speed of the conveying mechanism is adjustable. The rapid curing method includes the following steps: S1. Obtain the maximum withstand temperature, adhesive thickness, and dimensions of each component of the glued-injected door and window; S2. Take the minimum value among all the highest tolerance temperatures and optimize it to obtain the curing temperature. Set the curing oven temperature according to the curing temperature. S3. Determine the preheating time of the corner adhesive based on the dimensions of the door / window, the thickness of the adhesive, and the curing temperature; determine the required curing time of the corner adhesive based on the curing temperature and the thickness of the adhesive; the sum of the preheating time and the curing time is the conveying time of the curing oven; determine the conveying speed based on the length of the curing oven and the conveying time. S4. Obtain the cooling time based on the length of the cooling furnace and the conveying speed; obtain the cooling temperature based on the cooling time, target temperature, and glue injection doors and windows; and set the cooling furnace temperature based on the cooling temperature. S5. Set the conveying speed, curing oven temperature and cooling oven temperature according to the obtained information, and then place the glue injection door and window on the conveying mechanism. The conveying mechanism drives the glue injection door and window to first pass through the curing oven for rapid curing, and then pass through the cooling oven for rapid cooling, so that the output glue injection door and window temperature does not exceed 35℃.
[0007] In step S1, the glued door and window components include aluminum profiles, corner adhesive, protective film, and / or thermal break strips; the maximum temperature resistance of the corner adhesive is... The maximum temperature that the protective film can withstand is The maximum temperature that the thermal insulation strip can withstand is The aluminum profile has one or two cavities for mounting corner brackets; the adhesive thickness... This refers to the thickness of the corner adhesive filling between the corner bracket and the cavity.
[0008] In step S2, the curing temperature for:
[0009]
[0010] In the formula, It is the minimum of all the highest tolerable temperatures. For safety reasons, .
[0011] Curing oven temperature : ,
[0012] In step S3, the preheating time is calculated. :
[0013]
[0014]
[0015] ,
[0016] In the formula, The density of the aluminum profile. This refers to the specific heat capacity of the aluminum profile. This refers to the wall thickness of the aluminum profile. The convection exchange coefficient of the curing oven. The density of corner glue, The specific heat capacity of the corner glue, For the thickness of the adhesive, The thermal conductivity of the corner adhesive is... For temperature difference, The initial temperature of the glued doors and windows. This is the amount of time compensation. Corner adhesive curing time :
[0017] In the formula, This refers to the curing time required for the corner adhesive to harden at room temperature. At room temperature The temperature coefficient of the reaction rate; Delivery time of curing oven :
[0018] Conveying speed :
[0019] In the formula, This refers to the length of the curing oven.
[0020] In step S4, the length of the cooling furnace is assumed to be... Cooling time of the cooling furnace :
[0021] Obtain the cooling temperature of the cooling furnace :
[0022]
[0023] In the formula, For the target temperature, The convective heat transfer coefficient of the cooling furnace.
[0024] Cooling furnace temperature : ,
[0025] In step S1, the glue-injected doors and windows are either thermally broken aluminum glue-injected doors and windows or non-thermally broken aluminum glue-injected doors and windows. In the thermally broken aluminum glue-injected doors and windows, the aluminum profiles are broken in the middle and connected by thermal insulation strips; in the non-thermally broken aluminum glue-injected doors and windows, the aluminum profiles are integrally formed.
[0026] The curing oven is heated by electric heating or gas heating and reaches the curing oven temperature through hot air circulation; the cooling oven reaches the cooling oven temperature through air cooling.
[0027] The conveying mechanism includes a conveying support, with multiple conveying rollers evenly spaced at the upper end of the conveying support. Adjacent conveying rollers are connected in series by a sprocket and a chain. One of the chains is connected to a drive sprocket. The drive sprocket is mounted on a conveying reducer. A conveying motor is connected to the input end of the conveying reducer. The conveying reducer is mounted on the conveying support.
[0028] The beneficial effects of this invention are: (1) By designing a curing oven, a cooling oven, and a conveying mechanism, the glued doors and windows are first heated and cured, and then the cured glued doors and windows are rapidly cooled. The curing time is usually completed within 5 to 10 minutes, which greatly shortens the curing time and significantly improves the production efficiency of doors and windows. (2) By accurately calculating the conveying speed, curing temperature, and cooling temperature, the optimal curing scheme can be given according to the specific parameters of the glued doors and windows combined with the parameters of the curing oven and the cooling oven. This ensures that the heating does not damage the glued doors and windows, fully utilizes the curing and cooling advantages of the equipment, greatly shortens the glued curing time, and significantly improves the production efficiency of doors and windows. Attached Figure Description
[0029] Figure 1 This is a flowchart of the rapid curing method of the present invention; Figure 2 This is a top view of the curing oven, cooling oven, and conveying mechanism of the present invention; Figure 3 for Figure 2 Enlarged view of part A in the image; Figure 4 This is a schematic diagram of the chain drive structure of the present invention; Figure 5 This is a schematic diagram of the aluminum profile structure of the present invention; Figure 6 This is a perspective view of the aluminum profile of the present invention; Figure 7 This is a schematic diagram of the structure of the glue-injected door and window of the present invention; Figure 8 This is a cross-sectional view of the corner brackets of the present invention after glue injection; Among them, 1. Curing oven, 2. Cooling oven, 3. Conveying mechanism, 301. Conveying support, 302. Conveying roller, 303. Sprocket, 304. Chain, 305. Drive sprocket, 306. Conveying reducer, 307. Conveying motor, 4. Glue injection door and window, 5. Aluminum profile, 6. Corner glue, 7. Protective film, 8. Heat insulation strip, 9. Cavity A, 10. Cavity B, 11. Corner code. Detailed Implementation
[0030] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.
[0032] The following embodiments are for illustrative purposes only and are not intended to limit the scope of this application. Experimental methods in the following embodiments that do not specify specific conditions should first refer to the guidelines given in this application, or may be performed according to experimental manuals or conventional conditions in the art, or by referring to experimental methods known in the art. Unless otherwise specified, all methods are conventional methods in the art.
[0033] In the following specific embodiments, unless otherwise specified, slight deviations may exist within the weighing accuracy range for the measurement parameters of the raw material components. For temperature and time parameters, acceptable deviations due to instrument testing accuracy or operational precision are permissible. The equipment and raw materials used are commercially available or commonly used in the art.
[0034] like Figure 1-8As shown, a rapid curing method for adhesive-filled doors and windows includes a curing oven 1 and a cooling oven 2 connected in series. Each curing oven 1 and cooling oven 2 is equipped with a conveying mechanism 3 for transporting the adhesive-filled doors and windows 4. The conveying mechanism 3 carries the adhesive-filled doors and windows 4 sequentially through the curing oven 1 and cooling oven 2. The temperatures within the curing oven 1 and cooling oven 2 are adjustable, and the conveying speed of the conveying mechanism 3 is also adjustable. Typically, in practical applications, the lengths of the curing oven 1 and cooling oven 2 are fixed once designed. Therefore, subsequent applications mainly adapt to the rapid curing requirements of different specifications of adhesive-filled doors and windows 4 by changing the curing oven temperature, conveying speed, and cooling oven temperature. The rapid curing method includes the following steps: S1. Obtain the maximum withstand temperature, adhesive thickness, and dimensions of each component of the glued-injected door / window 4. The components of the glued-injected door / window 4 are not entirely the same according to design requirements. For example, some glued-injected doors / windows 4 use non-thermal-insulated aluminum doors / windows (aluminum profile 5 is integrally formed without a partition in the middle), while others use thermally broken aluminum doors / windows (aluminum profile 5 is split, with a partition in the middle and connected by a thermal insulation strip 8). Moreover, the size and shape design of the glued-injected door / window 4 are also diverse, which brings challenges to precise curing.
[0035] S2. Take the minimum value among all the highest tolerance temperatures and optimize it to obtain the curing temperature in the curing oven. Set the curing oven temperature according to the curing temperature. In order to ensure that the curing temperature will not cause damage to the components (parts) in the glued door and window 4, it is necessary to count the highest tolerance temperature of all components and then take the minimum value as the basis. Considering the error of curing temperature and the difference in product quality of each component, a safety factor needs to be set for the highest tolerance temperature with the smallest value to ensure safety and reliability.
[0036] S3. Based on the dimensions of the glued door / window 4, the glue thickness, and the curing temperature, obtain the preheating time for the corner glue. Based on the curing temperature and the glue thickness, obtain the required curing time for the corner glue. The sum of the preheating time and the curing time is the conveying time of the curing oven 1. The conveying speed is obtained based on the length of the curing oven 1 and the conveying time. Considering that there are various models of glued doors / windows 4, including non-thermal aluminum doors / windows and thermally broken aluminum doors / windows, in order to simplify the calculation while accurately calculating the curing time, the curing time is divided into preheating time and curing time. Moreover, the preheating time is further divided into aluminum profile preheating and corner glue preheating. This calculation method combines the common characteristics of different glued doors / windows 4 (all have cavities for installing corner brackets 11, and the distance from the cavity to the surface is usually the wall thickness). In this way, not only is the calculation simplified, but the accuracy of the calculation is also taken into account.
[0037] S4. Obtain the cooling time based on the length of the cooling oven 2 and the conveying speed. Obtain the cooling temperature based on the cooling time, the target temperature, and the glue injection door and window 4. Set the cooling oven temperature based on the cooling temperature. Since the cooling oven 2 and the curing oven 1 share the conveying mechanism 3, their conveying speeds are the same.
[0038] S5. Set the conveying speed, curing oven temperature and cooling oven temperature according to the obtained information, and then place the glue injection door 4 on the conveying mechanism 3. The conveying mechanism 3 drives the glue injection door 4 to be heated and cured quickly in the curing oven 1, and then cooled quickly in the cooling oven 2, so that the output glue injection door 4 temperature does not exceed 35℃.
[0039] In step S1, the glued door and window 4 includes aluminum profile 5, corner adhesive 6, protective film 7, and / or thermal insulation strip 8. The protective film 7 protects the surface of the door and window; the corner adhesive has a maximum temperature resistance of [temperature value missing]. The maximum temperature that the protective film can withstand is The maximum temperature that the thermal insulation strip can withstand is Other materials can be added, such as thermal insulation filler. Since the maximum temperature resistance of aluminum profiles is definitely higher than that of other materials, this need not be considered here; the aluminum profile 5 has one or two cavities for installing the corner bracket 11; the adhesive thickness... This refers to the filling thickness of the corner adhesive 6 between the corner bracket 11 and the cavity. Since there are many types of corner brackets 11, the actual thickness is not uniform. In practical applications, the depth of the adhesive groove (guide groove) on the corner bracket 11 can be equal to the adhesive thickness. Because excessive adhesive thickness will affect shear strength, the adhesive thickness is usually: .
[0040] In step S2, the curing temperature for: ,
[0041] In the formula, It is the minimum of all the highest tolerable temperatures. For safety reasons, .in The number of components depends on the components of the glued doors and windows, typically including a protective film (7) and corner sealant (6). Of course, thermally broken aluminum doors and windows also include thermal break strips (8). The value is an integer, and is determined by the actual components of the glued-in doors and windows, typically being [value missing]. .
[0042] Curing oven temperature (Equivalent to the temperature of convective hot air): ,
[0043] In step S3, the preheating time is calculated. :
[0044]
[0045]
[0046] ,
[0047] In the formula, The density of aluminum profile 5, The specific heat capacity of aluminum profile 5. The wall thickness of aluminum profile 5. The convective heat transfer coefficient of the curing oven. The density of corner glue, The specific heat capacity of the corner glue, For the thickness of the adhesive, The thermal conductivity of the corner adhesive is... For temperature difference, The initial temperature of the glued door and window 4 (i.e., the temperature inside the factory). This is the amount of time compensation. Corner adhesive curing time :
[0048] In the formula, This refers to the curing time required for the corner adhesive to harden at room temperature. At room temperature The temperature coefficient of the reaction rate; The conveying time of the curing oven 1 :
[0049] Conveying speed :
[0050] In the formula, The length of curing oven 1.
[0051] In step S4, the length of cooling furnace 2 is assumed to be... Cooling time of cooling furnace 2 :
[0052] Obtain the cooling temperature of cooling furnace 2 :
[0053]
[0054]
[0055]
[0056] In the formula, The target temperature is typically set to 35°C. The convective heat transfer coefficient of the cooling furnace.
[0057] Cooling furnace temperature (Equivalent to the temperature of convective cold air): ,
[0058] In step S1, the glue-injected door and window 4 is either a thermally broken aluminum glue-injected door and window or a non-thermally broken aluminum glue-injected door and window. In the thermally broken aluminum glue-injected door and window, the aluminum profile 5 is broken in the middle and connected by a thermal break strip 8; in the non-thermally broken aluminum glue-injected door and window, the aluminum profile 5 is integrally formed.
[0059] The curing oven 1 is heated by electric heating or gas heating and reaches the set curing oven temperature through hot air circulation; the cooling oven 2 reaches the set cooling oven temperature through air cooling.
[0060] The conveying mechanism 3 includes a conveying support 301. Multiple conveying rollers 302 are evenly spaced at the upper end of the conveying support 301. Adjacent conveying rollers 302 are connected in series via a sprocket 303 and a chain 304. One of the chains 304 is connected to a drive sprocket 305. The drive sprocket 305 is mounted on a conveying reducer 306. A conveying motor 307 is connected to the input end of the conveying reducer 306. The conveying reducer 306 is mounted on the conveying support 301. This achieves uniform speed conveying of the glued door and window 4.
[0061] To verify the technical effectiveness of this method, the following verification was conducted: Corner Adhesive 6 uses a two-component polyurethane corner adhesive, TL-9002, jointly developed by Guangdong Pusaida Materials Technology Co., Ltd. and Guangdong Kinlong Building Materials Sales Co., Ltd. Its test report is shown in the table below:
[0062] In addition, relevant verifications were conducted to confirm that the performance of the two-component polyurethane corner adhesive met the requirements after rapid curing by heating: Experimental equipment: two metal sheets, two-component polyurethane corner adhesive, hardness tester, electric heating drying oven, and universal testing machine, etc. The two experimental metal sheets were bonded together with two-component polyurethane corner adhesive and dried at 150℃ for 5 minutes. Then, the shear strength and hardness of the samples were tested. The test results were: Shore hardness of 77 (requirement ≥60) and tensile shear strength of 12.57 MPa (requirement ≥3.0). Therefore, corner adhesive 6 can still meet the performance requirements after heat curing.
[0063] Let's take thermally broken aluminum windows and doors, which are commonly used in the market today, as an example: like Figure 5 The image shown is a cross-sectional view of the aluminum profile for thermally broken aluminum windows and doors. It uses the 70 series: 70mm width, 1.4mm wall thickness, and is equipped with 5+22A+5 double-glazed glass. The protective film 7 is made of PE, and the thermal break strip 8 is made of PA66 nylon material (containing 25% glass fiber).
[0064] The curing oven 1 is set to be 4m long, and the cooling oven 2 is set to be 3m long.
[0065] In step S1, the glued door and window 4 includes aluminum profile 5, corner adhesive 6, protective film 7, and thermal insulation strip 8. The protective film 7 protects the surface of the door and window; the maximum temperature resistance of the corner adhesive 5 is... The maximum temperature that the protective film 7 can withstand is (This refers to short-term withstand temperature), the maximum withstand temperature of the thermal insulation strip is... The aluminum profile 5 is provided with two cavities, A9 (20.3mm wide) and B10 (14.1mm wide), for installing the corner brackets 11; the selected corner brackets 11 have glue injection grooves, and the depth of the glue injection grooves is 1.5mm, so the glue injection thickness is... ; In step S2, the curing temperature for:
[0066]
[0067] Curing oven temperature :
[0068] In step S3, the preheating time is calculated. :
[0069]
[0070]
[0071] ,
[0072] In the formula, The density of aluminum profile 5, The specific heat capacity of aluminum profile 5. The wall thickness of aluminum profile 5. The convective heat transfer coefficient of curing oven 1 is... The density of corner glue 6, The specific heat capacity of corner glue 6, For the thickness of the adhesive, The thermal conductivity of corner adhesive 6 is... For temperature difference, The initial temperature of the glued door and window 4 (i.e., the temperature inside the factory). This is the amount of time compensation. Corner adhesive curing time :
[0073] In the formula, The curing time required for corner adhesive 6 to cure at room temperature (calculated as 12 hours to reach the required curing strength). At room temperature (25℃). The temperature coefficient of the reaction rate (taken as 2); The conveying time of the curing oven 1 :
[0074] Conveying speed :
[0075] In the formula, The length of curing oven 1.
[0076] In step S4, the length of cooling furnace 2 is set to... (3m), Cooling time of cooling furnace 2 :
[0077] Obtain the cooling temperature of cooling furnace 2 :
[0078]
[0079]
[0080]
[0081] In the formula, The target temperature is typically set to 35°C. is the convective heat transfer coefficient of cooling furnace 2.
[0082] Cooling furnace temperature (Equivalent to the temperature of convective cold air): .
[0083] As described above , , The system sets parameters for curing oven 1, cooling oven 2, and conveyor mechanism 3. The glue-dispensing door 4 is placed on conveyor mechanism 3 for heating, curing, and cooling before output. The entire curing process takes more than 5 minutes, significantly improving curing efficiency. Of course, there will be variations depending on the size of the glue-dispensing door 4 and the performance of curing oven 1 and cooling oven 2, but the overall curing efficiency is significantly improved compared to natural curing. In practical applications, during equipment debugging, a trial run can be conducted first, and then the equipment parameters can be fine-tuned based on the actual results to achieve the optimal curing efficiency and effect.
[0084] The method for preparing composite microwave absorbing materials using pulp industry sludge provided by the present invention has been described in detail above. The specific embodiments described above should not be construed as limiting the scope of protection of the present invention. Any alternative modifications or variations made to the embodiments of the present invention by those skilled in the art will fall within the scope of protection of the present invention.
[0085] Any aspects of this invention not described in detail are well-known to those skilled in the art.
Claims
1. A method for rapid curing of adhesive applied to doors and windows, characterized in that, The method includes a curing oven and a cooling oven connected in series. Each curing oven and cooling oven is equipped with a conveying mechanism with a dispensing door. The temperature inside the curing oven and cooling oven is adjustable, and the conveying speed of the conveying mechanism is adjustable. The rapid curing method includes the following steps: S1. Obtain the maximum withstand temperature, adhesive thickness, and dimensions of each component of the glued-injected door and window; S2. Take the minimum value among all the highest tolerance temperatures and optimize it to obtain the curing temperature. Set the curing oven temperature according to the curing temperature. S3. Determine the preheating time of the corner adhesive based on the dimensions of the door / window, the thickness of the adhesive, and the curing temperature; determine the required curing time of the corner adhesive based on the curing temperature and the thickness of the adhesive; the sum of the preheating time and the curing time is the conveying time of the curing oven; determine the conveying speed based on the length of the curing oven and the conveying time. S4. Obtain the cooling time based on the length of the cooling furnace and the conveying speed; obtain the cooling temperature based on the cooling time, target temperature, and glue injection doors and windows; and set the cooling furnace temperature based on the cooling temperature. S5. Set the conveying speed, curing oven temperature and cooling oven temperature according to the obtained information, and then place the glue injection door and window on the conveying mechanism. The conveying mechanism drives the glue injection door and window to first pass through the curing oven for rapid curing, and then pass through the cooling oven for rapid cooling, so that the output glue injection door and window temperature does not exceed 35℃.
2. The rapid curing method for door and window adhesive injection according to claim 1, characterized in that, In step S1, the glued door and window components include aluminum profiles, corner adhesive, protective film, and / or thermal break strips; the maximum temperature resistance of the corner adhesive is... The maximum temperature that the protective film can withstand is The maximum temperature that the thermal insulation strip can withstand is The aluminum profile has one or two cavities for mounting corner brackets; the adhesive thickness... This refers to the thickness of the corner adhesive filling between the corner bracket and the cavity.
3. The rapid curing method for adhesive injection into doors and windows according to claim 2, characterized in that, In step S2, the curing temperature for: In the formula, It is the minimum of all the highest tolerable temperatures. For safety reasons, ; Curing oven temperature : , 。 4. The rapid curing method for adhesive injection into doors and windows according to claim 2, characterized in that, In step S3, the preheating time is calculated. : , In the formula, The density of the aluminum profile. This refers to the specific heat capacity of the aluminum profile. This refers to the wall thickness of the aluminum profile. The convection exchange coefficient of the curing oven. The density of corner glue, The specific heat capacity of the corner glue, For the thickness of the adhesive, The thermal conductivity of the corner adhesive is... For temperature difference, The initial temperature of the glued doors and windows. This is the amount of time compensation. Corner adhesive curing time : In the formula, This refers to the curing time required for the corner adhesive to harden at room temperature. At room temperature The temperature coefficient of the reaction rate; Delivery time of curing oven : Conveying speed : In the formula, This refers to the length of the curing oven.
5. The rapid curing method for door and window adhesive injection according to claim 4, characterized in that, In step S4, the length of the cooling furnace is assumed to be... Cooling time of the cooling furnace : Obtain the cooling temperature of the cooling furnace : In the formula, For the target temperature, The convective heat transfer coefficient of the cooling furnace; Cooling furnace temperature : , 。 6. The rapid curing method for adhesive injection into doors and windows according to claim 5, characterized in that, In step S1, the glue-injected doors and windows are either thermally broken aluminum glue-injected doors and windows or non-thermally broken aluminum glue-injected doors and windows. In the thermally broken aluminum glue-injected doors and windows, the aluminum profiles are broken in the middle and connected by thermal insulation strips; in the non-thermally broken aluminum glue-injected doors and windows, the aluminum profiles are integrally formed.
7. The method for rapid curing of adhesive injection for doors and windows according to claim 6, characterized in that, The curing oven is heated by electric heating or gas heating and reaches the curing oven temperature through hot air circulation; the cooling oven reaches the cooling oven temperature through air cooling.
8. The method for rapid curing of adhesive injection for doors and windows according to claim 7, characterized in that, The conveying mechanism includes a conveying support, with multiple conveying rollers evenly spaced at the upper end of the conveying support. Adjacent conveying rollers are connected in series by a sprocket and a chain. One of the chains is connected to a drive sprocket. The drive sprocket is mounted on a conveying reducer. A conveying motor is connected to the input end of the conveying reducer. The conveying reducer is mounted on the conveying support.