MARK3 type LNG ship resin machine adhesion verification method

Abstract

The invention relates to the technical field of LNG ship manufacturing, in particular to an MARK3 type LNG ship resin machine adhesion verification method. The MARK3 type LNG ship resin machine adhesion verification method comprises the steps that matching verification is conducted, specifically, two paper cups are placed below a main agent pipe and a curing agent pipe respectively, a resin machine is started, whether the matching is within the range or not is determined through weighing of an electronic scale, and three sets of samples are measured in total; performing hybrid verification; resin molding verification, wherein a resin molding verification test comprises planar module resin strip verification, CP1 corner module resin strip verification and CP3 corner module resin strip verification; verifying the working time; according to the MARK3 type LNG ship resin machine adhesion verification method, the resin adhesion authentication efficiency can be improved, and the verification cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of LNG ship manufacturing, and more particularly, to a method for verifying the adhesion of a resin machine for a MARK3 type LNG ship. Background Art

[0002] The MARK3 type membrane tank has the advantages of short construction period, low evaporation rate, large cargo hold volume, and good anti-sloshing performance. Compared with the NO96 series, under the same cargo hold evaporation rate, the total insulation thickness of the MARK3 series can be reduced by 50%, and the hold volume is greatly increased. The resin coating and module installation requirements for the Mark III type containment system are relatively high. The resin is coated on the bottom of the module through a resin machine and then directly adhered to the hull. The most important function of the resin is to ensure the adhesion between the module and the hull and to ensure that all adhesion areas are qualified. In order to ensure that the adhesion is completely qualified during actual ship production, it is necessary to pass the resin adhesion certification (MPQT) of GTT and the classification society before actual ship production, determine the parameters and approve the MPS. Once the certification is passed, during the subsequent production process, it is necessary to strictly construct according to the determined parameters and no parameters can be changed. Once the parameters are changed, re-certification must be carried out. Summary of the Invention

[0003] An object of the present invention is to provide a method for verifying the adhesion of a resin machine for a MARK3 type LNG ship, which can improve the efficiency of resin adhesion certification and reduce the verification cost.

[0004] The embodiments of the present invention may be implemented as follows:

[0005] The present invention provides a method for verifying the adhesion of a resin machine for a MARK3 type LNG ship, including:

[0006] Ratio verification: Place two paper cups respectively under the main agent pipe and the curing agent pipe, start the resin machine, and determine whether the ratio is within the range by weighing with an electronic scale. A total of 3 groups of specimens are measured;

[0007] Mixing verification: Replace the mixing tube of the resin machine, coat a C3 type resin strip with a length of 0.5 meters, and then use a scraper to scrape open the middle of the resin strip to check whether the inside of the resin strip is evenly mixed and whether there are tiger stripes;

[0008] Hardness verification: Cut off the bottom of the paper cup, place the paper cup on a stainless steel plate, pour the mixed resin into the paper cup until it is 2 / 3 full. A total of 3 cups of samples are made, and the time, ambient temperature and humidity, and sample number are marked on the surface of the paper cup; Put the samples into the oven and heat for 20 minutes; Then put the samples into water at a temperature of 20 - 30 °C for 25 minutes; Divide each sample into 3 areas, and use a shore D hardness tester to measure the hardness of each area respectively. When the hardness of all areas is greater than 79, it is qualified and the hardness value is recorded in the table;

[0009] Resin molding verification. The resin molding verification test includes flat module resin strip verification, CP1 corner area module resin strip verification, and CP3 corner area module resin strip verification. Each module type is divided into resin strips of models C1, C2, C3, C4, and C5. Each type of resin strip is respectively verified for appearance, height, cross-sectional area, and width after ballasting, and various parameters during coating are recorded separately;

[0010] Working time verification. The working time is determined based on the minimum value between the ballasting time and the resin exposure time, and each test needs to test two cases of the lowest temperature and the highest temperature.

[0011] In an alternative embodiment, before starting the verification, the temperature and humidity of the verification area are recorded first, and the resin machine is replaced with a ratio test joint.

[0012] In an alternative embodiment, before starting the verification, the temperature is controlled at 15 - 35 °C and the humidity ≤ 70%.

[0013] In an alternative embodiment, when weighing the proportioning sample with an electronic scale, the weight ratio of experimental resin to curing agent is 100:80, with a tolerance range of ±10%.

[0014] In an alternative embodiment, before the step of hardness verification, the oven is preheated first. When preheating, the temperature sensing wire is placed in the oven to check the temperature. When the temperature reaches 120 °C, the temperature is maintained.

[0015] In an alternative embodiment, when performing the working time verification step, the lowest temperature is 15 °C and the highest temperature is 35 °C.

[0016] In an alternative embodiment, the steps of flat module resin strip verification include:

[0017] Each resin strip is measured at 5 positions, the average value ≥ 25 mm, the minimum value ≥ 20 mm, and the width within 50 mm from the end is greater than 22 mm;

[0018] On the module, 4 resin strips of C1 - C5 are respectively coated. Wedges with corresponding thicknesses are used beside each resin type, and then an acrylic glass flat plate is used to press the resin strip. The width of the resin strip after ballasting is measured. Each resin strip is measured at 5 positions to obtain the average width. For each resin type, 3 resin strips are measured, and one resin strip is reserved. After it hardens, it is cut from the middle to measure the cross-sectional area of the resin strip.

[0019] In an alternative embodiment, the steps of CP1 corner area module resin strip verification and CP3 corner area module resin strip verification include:

[0020] When coating the corner area module, the module is placed at an angle on the coating platform. The resin after coating is perpendicular to the bottom plate of the module. An angled nozzle is used according to the different angles of the module, and the nozzle always remains perpendicular to the module during coating;

[0021] On the CP1 and CP3 modules, 4 resin strips C1 - C5 are coated respectively. Wedge blocks with corresponding thicknesses are used beside each resin type. Then, an acrylic glass plate is used to press the resin strips. The width of the resin strips after ballasting is measured. Five positions of each resin strip are measured, and the average width is calculated. Three resin strips of each resin type are measured, and one resin strip is reserved. After it hardens, it is cut in the middle, and the cross-sectional area of the resin strip is measured.

[0022] In an alternative embodiment, the steps for verifying according to the ballasting time include:

[0023] On the test module, protective films are pasted every 100 mm. Several groups of resin strip samples with a spacing of 80 mm are coated. Then, the protective films are torn off to ensure that each group of samples consists of two C2 resins with a length of 100 mm, and the distance between the resins is 80 mm. The start time of coating and the environmental temperature and humidity are recorded;

[0024] 4 - mm wedge blocks are placed at the four corners of the samples, and a protective film is laid on the resin strips. Plywood and a 10 - kg weight are placed, and the placement time is recorded;

[0025] After 5 minutes, check the number of plywood pieces closely attached to the wedge blocks. If ≥ 3, proceed to the next group;

[0026] When after pressing for 5 minutes, the number of positions in contact with the wedge blocks is less than 3, record the time, and this time is the ballasting time at this temperature.

[0027] In an alternative embodiment, the steps for verifying according to the resin exposure time include:

[0028] Place the painted steel plate in the test chamber and monitor the laboratory temperature. When the temperature reaches the required temperature, maintain this temperature;

[0029] Coat several resin strips of C1 on the plywood and record the time, then quickly transport the resin strips to the test chamber;

[0030] Coat the resin on the bottom of the tooling every 10 minutes, and install 5 samples on the steel plate;

[0031] After installation, maintain this temperature for 3 days;

[0032] After 3 days, conduct a tensile test using a tensile tester and record the tensile value. When the tensile value is less than 10 MPA, the time of installing the tooling for the previous batch is the resin exposure time.

[0033] The beneficial effects of the MARK3 type LNG ship resin machine adhesion verification method provided by the embodiments of the present invention include:

[0034] The MARK3 type LNG ship resin machine adhesion verification method includes: ratio verification, placing two paper cups respectively under the main agent pipe and the curing agent pipe, starting the resin machine, and determining whether the ratio is within the range by weighing with an electronic scale, measuring a total of 3 groups of samples; mixing verification, replacing the mixing pipe of the resin machine, coating a C3 type resin strip with a length of 0.5 meters, and then scraping along the middle of the resin strip with a scraper to check whether the inside of the resin strip is evenly mixed and whether there are tiger stripes; hardness verification, cutting off the bottom of the paper cup and placing the paper cup on a stainless steel plate, injecting the mixed resin into the paper cup to a volume of 2 / 3 of the paper cup, a total of 3 cups of samples are made, and the time, environmental temperature and humidity, and sample number are marked on the surface of the paper cup; putting the samples into an oven and heating for 20 minutes; then putting the samples into water at a temperature of 20 - 30 °C for 25 minutes; dividing each sample into 3 areas, using a shore D hardness tester to measure the hardness of each area respectively, when the hardness of all areas is greater than 79, it is qualified and the hardness value is recorded in a table; resin molding verification, the resin molding verification test includes flat module resin strip verification, CP1 corner area module resin strip verification, CP3 corner area module resin strip verification, each module type is divided into C1, C2, C3, C4, C5 type resin strips, and each type of resin strip is respectively verified for appearance, height, cross-sectional area, and width after ballast, and various parameters during coating are respectively recorded; working time verification, the working time is determined according to the minimum value between the ballast time and the resin exposure time, and each test needs to test two cases of the lowest temperature and the highest temperature. The MARK3 type LNG ship resin machine adhesion verification method can improve the efficiency of resin adhesion certification and reduce the verification cost. Brief Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a flowchart of the MARK3 type LNG ship resin machine adhesion verification method provided for this embodiment;

[0037] Figure 2 It is a schematic diagram of flat module resin molding provided for this embodiment. Detailed Embodiments

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention described and illustrated herein generally may be arranged and designed in a variety of different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0040] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0041] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the present invention is usually placed during use. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0042] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0043] It should be noted that, without conflict, the features in the embodiments of the present invention may be combined with each other.

[0044] Please refer to Figure 1 and Figure 2 , this embodiment provides a method for verifying the adhesion of the resin machine of a MARK3 type LNG ship, the function of which is to quickly complete the adhesion certification of the resin machine, and it includes:

[0045] Ratio verification: Place two paper cups respectively under the main agent pipe and the curing agent pipe, start the resin machine, and determine whether the ratio is within the range by weighing with an electronic scale. A total of 3 groups of samples are measured;

[0046] Mixing verification: Replace the mixing pipe of the resin machine, coat a C3 type resin strip with a length of 0.5 meters, and then use a scraper to scrape along the middle of the resin strip to check whether the inside of the resin strip is evenly mixed and whether there are tiger stripes;

[0047] Hardness verification: Cut off the bottom of the paper cup, place the paper cup on a stainless steel plate, inject the mixed resin into the paper cup, about 2 / 3 of the paper cup volume, and make 3 cups of samples in total. Mark the time, environmental temperature and humidity, and sample number on the surface of the paper cup; put the samples into the oven and heat for 20 minutes; then put the samples into water at 20 - 30°C for 25 minutes; divide each sample into 3 areas, use a shore D hardness tester to measure the hardness of each area respectively. When the hardness of all areas is greater than 79, it is qualified and record the hardness value in the table;

[0048] Resin molding verification: The resin molding verification test includes flat module resin strip verification, CP1 corner area module resin strip verification, and CP3 corner area module resin strip verification. Each module type is divided into resin strips of models C1, C2, C3, C4, and C5. Each type of resin strip is respectively verified for appearance, height, cross-sectional area, and width after ballasting, and various parameters during coating are recorded respectively;

[0049] Working time verification: The working time is determined according to the minimum value between the ballasting time and the resin exposure time, and each test should test two situations of the lowest temperature and the highest temperature.

[0050] Please refer to Figure 1 and Figure 2 . When the resin machine adhesion verification method for this MARK3 type LNG ship conducts hardness testing, first cut off the bottom of the paper cup, place the paper cup on a stainless steel plate, then inject the mixed resin and put it into the oven, which saves the time for grinding the paper cup and resin during hardness testing; moreover, for different module types, different nozzle types are designed, which can ensure better resin molding and save the resin usage; due to the non-uniformity of the starting end and ending end of the resin strip, the inspection standards for the ballasting width of the resin strip at the end and the middle area are formulated; a special tooling for the paint tensile test is designed to ensure that the resin does not move during the hardening process of the resin, ensuring the success rate of the tensile test. Therefore, the resin machine adhesion verification method for this MARK3 type LNG ship can improve the efficiency of resin adhesion certification and reduce the verification cost.

[0051] Furthermore, please refer to Figure 1 and Figure 2 . In this embodiment, before starting the verification, first record the temperature and humidity of the verification area, and replace the ratio test joint of the resin machine. And before starting the verification, control the temperature at 15 - 35°C and the humidity ≤ 70%. In addition, when weighing the ratio sample by an electronic scale, the weight ratio of the experimental resin to the curing agent is 100:80, with a tolerance range of ±10%.

[0052] Before the step of hardness verification, preheat the oven. When preheating, put the temperature sensing wire into the oven and check the temperature. When the temperature reaches 120 °C, maintain the temperature. In addition, when performing the step of working time verification, the minimum temperature is 15 °C and the maximum temperature is 35 °C.

[0053] Specifically, in this embodiment, the steps for verifying the resin strips of the planar module include:

[0054] Measure 5 positions for each resin strip, with the average value ≥ 25 mm, the minimum value ≥ 20 mm, and the width within 50 mm from the end being greater than 22 mm;

[0055] Apply 4 resin strips C1 - C5 on the module respectively. Use wedges with corresponding thicknesses beside each resin type, and then use a plexiglass flat plate to press the resin strips. Measure the width of the resin strips after ballasting. Measure 5 positions for each resin strip, calculate the average width. Measure 3 resin strips for each resin type, keep one resin strip. After it hardens, cut it in the middle and measure the cross-sectional area of the resin strip.

[0056] Please refer to Figure 1 and Figure 2 , in this embodiment, the steps for verifying the resin strips of the CP1 corner module and the CP3 corner module include:

[0057] When applying the resin on the corner module, place the module at an angle on the application platform. The applied resin is perpendicular to the bottom plate of the module. Use an angled nozzle according to the different angles of the module, and keep the nozzle perpendicular to the module all the time when applying.

[0058] Apply 4 resin strips C1 - C5 on the CP1 and CP3 modules respectively. Use wedges with corresponding thicknesses beside each resin type, and then use a plexiglass flat plate to press the resin strips. Measure the width of the resin strips after ballasting. Measure 5 positions for each resin strip, calculate the average width. Measure 3 resin strips for each resin type, keep one resin strip. After it hardens, cut it in the middle and measure the cross-sectional area of the resin strip.

[0059] Specifically, please refer to Figure 1 and Figure 2 , in this embodiment, the steps for verifying according to the ballasting time include:

[0060] Stick protective films on the test module every 100 mm. Apply several groups of resin strip samples with a spacing of 80 mm. Then tear off the protective films, ensuring that each group of samples consists of two C2 resins with a length of 100 mm and a spacing of 80 mm between the resins. Record the start time of application and the environmental temperature and humidity.

[0061] Place 4-mm wedges at the four corners of the sample, lay a protective film on the resin strip, place the plywood and a 10-kg weight, and record the placement time.

[0062] After 5 minutes, check the number of plywood sheets closely attached to the wedges. If ≥ 3, proceed to the next group.

[0063] When, after pressing for 5 minutes, the number of positions in contact with the wedges is less than 3, record the time, which is the ballast time at this temperature.

[0064] In an alternative embodiment, the steps for verifying according to the resin exposure time include:

[0065] Place the painted steel plate in the test chamber and monitor the chamber temperature. When the temperature reaches the required temperature, maintain that temperature.

[0066] Apply several resin strips of C1 on the plywood and record the time, then quickly transport the resin strips to the test chamber.

[0067] Apply the resin to the bottom of the tooling every 10 minutes and install 5 samples on the steel plate.

[0068] After installation, maintain this temperature for 3 days.

[0069] After 3 days, conduct a tensile test using a tensile tester and record the tensile value. When the tensile value is less than 10 MPA, the installation time of the previous batch of tooling is the resin exposure time.

[0070] Based on the above, please refer to Figure 1 and Figure 2 , the steps for resin adhesion certification using the above-mentioned MARK3 type LNG ship resin machine adhesion verification method are as follows:

[0071] 1. Mixing ratio certification:

[0072] Before certification, first record the temperature and humidity in the certification area, control the temperature at 15 - 35 °C, humidity ≤ 70%, replace the mixing ratio test joint of the resin machine, place two paper cups respectively under the main agent pipe and the curing agent pipe, then start the resin machine, and then determine whether the mixing ratio is within the range by weighing with an electronic scale. A total of 3 groups of specimens are measured (as shown in Table 1). Resin weight : curing agent weight = 100 : 80, with a tolerance range of ±10%.

[0073]

[0074]

[0075] (Table 1)

[0076] 2. Mixing certification:

[0077] Replace the mixing tube of the resin machine. Before use, ensure that the mixing tube has been cleaned thoroughly. Impurities in the mixing tube will affect the test results. Coat a resin strip of type C3 with a length of about 0.5 meters, and then use a scraper to scrape along the middle of the resin strip to check whether the inside of the resin strip is evenly mixed and whether there are tiger stripes or other conditions.

[0078] 3. Hardness Certification:

[0079] 1) Preheat the oven first. When preheating, put the temperature sensing wire into the oven and check the temperature. When the temperature reaches 120 °C, maintain this temperature;

[0080] 2) Cut off the bottom of the paper cup. Place the paper cup on the stainless steel plate. Inject the mixed resin into the paper cup, about 2 / 3 of the volume of the paper cup, and make a total of 3 cups of samples. Mark the time, ambient temperature and humidity, and sample number on the surface of the paper cup;

[0081] 3) Put it into the oven and heat for 20 minutes;

[0082] 4) Then put the samples into water at a temperature of 20 - 30 °C for 25 minutes;

[0083] 5) Divide each sample into 3 areas, and use a shore D hardness tester to measure the hardness of each area respectively. When the hardness of all areas is greater than 79, it is qualified and record the hardness value in the table.

[0084] 4. Resin Molding Certification:

[0085] The resin molding certification test includes flat module resin strip certification, CP1 corner module resin strip certification, and CP3 corner module resin strip certification. Each module type is divided into resin strips of models C1, C2, C3, C4, and C5. Each type of resin strip is respectively certified for appearance, height, cross-sectional area, and width after ballast, and various parameters during coating are recorded respectively. Specifically, it includes the following steps:

[0086] 4.1 Flat Module Resin Molding Certification

[0087] Please refer to Figure 2 , measure 5 positions for each resin strip, the average value ≥ 25 mm, the minimum value ≥ 20 mm, and the width within 50 mm from the end is greater than 22 mm;

[0088] Coat 4 resin strips of C1 - C5 on the module respectively. Use wedges with corresponding thicknesses beside each resin type, and then use an acrylic glass plate to press the resin strips. Measure the width of the resin strips after ballast. Measure 5 positions for each resin strip, calculate the average width value. Measure 3 resin strips for each resin type, keep one resin strip, and after it hardens, cut it in half from the middle and measure the cross-sectional area of the resin strip.

[0089] 4.2 CP1 / 3 Corner Module Molding Certification

[0090] When coating the corner module, the module is placed on the coating platform at a certain angle. If the nozzle of the coating flat module is still used, it will cause poor resin strip formation and sagging. Since the coated resin is perpendicular to the bottom plate of the module, nozzles at a certain angle are designed according to different angles of the module. When coating, the nozzle always remains perpendicular to the module.

[0091] Apply 4 resin strips C1 - C5 on the CP1 and CP3 modules respectively. Use wedges with corresponding thicknesses beside each resin type, and then press the resin strips with a plexiglass flat plate. Measure the width of the resin strips after ballasting. Measure 5 positions for each resin strip, and calculate the average width. Measure 3 resin strips for each resin type, and keep one resin strip. After it hardens, cut it in the middle and measure the cross-sectional area of the resin strip.

[0092] 5. Working time certification:

[0093] The working time, which determines the maximum working time from coating to the end of installation of the resin, is determined based on the minimum value between the ballasting time and the resin exposure time. And each test needs to test two cases of the lowest temperature (15°C) and the highest temperature (35°C). Specifically, it includes the following steps:

[0094] 5.1 Ballasting time certification

[0095] 1) Stick protective films on the module at intervals of 100 mm. Apply several groups of resin strip samples with a spacing of 80 mm, and then tear off the protective films, ensuring that each group of samples consists of two C2 resins with a length of 100 mm and a spacing of 80 mm between the resins. Record the coating start time and the environmental temperature and humidity.

[0096] 2) Place 4 - mm wedges at the four corners of the samples, lay a protective film on the resin strips, place plywood and a 10 - kg weight, and record the placement time.

[0097] 3) After 5 minutes, check the number of plywood pieces closely attached to the wedges. If ≥ 3, proceed to the next group.

[0098] 4) When after pressing for 5 minutes, the number of positions in contact with the wedges is less than 3, record the time, and this time is the ballasting time at this temperature.

[0099] 5.2 Resin exposure time certification

[0100] 1) Place the painted steel plate in the test chamber and monitor the laboratory temperature. When the temperature reaches the required temperature, maintain this temperature.

[0101] 2) Apply several resin strips of C1 on the plywood and record the time, and then quickly transport the resin strips to the test chamber.

[0102] 3) Apply the resin to the bottom of the tooling every 10 minutes and install 5 samples on the steel plate;

[0103] 4) After installation, maintain this temperature for 3 days.

[0104] 5) After 3 days, conduct a tensile test using a tensile tester and record the tensile value. When the tensile value is less than 10 MPA, the time when the previous batch of tooling was installed is the resin exposure time.

[0105] In summary, the method for verifying the resin adhesion of the MARK3 LNG ship can improve the efficiency of resin adhesion certification and reduce the verification cost, and also has the following advantages:

[0106] 1. During the hardness test, first cut off the bottom of the paper cup, place the paper cup on the stainless steel plate, then pour in the mixed resin and put it in the oven, saving the time for grinding the paper cup and resin during the hardness test.

[0107] 2. For different module types, design different nozzle types, which can ensure better resin molding, save the resin usage amount and improve the resin coating efficiency.

[0108] 3. Use a special tooling for the paint tensile test to prevent the resin from moving during the hardening process, ensuring the success rate of the tensile test.

[0109] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A MARK3 LNG ship resin machine adhesion verification method, characterized in that: include: Ratio verification: place two paper cups under the main agent tube and curing agent tube respectively, start the resin machine, and use an electronic scale to weigh to determine whether the ratio is within the range. A total of 3 groups of samples were measured; Mixing verification: replace the mixing tube of the resin machine, apply a C3 type resin strip with a length of 0.5 meters, and then use a scraper to scrape along the middle of the resin strip to check whether the inside of the resin strip is evenly mixed and whether there are tiger stripes; Hardness verification: cut off the bottom of the paper cup and place it on a stainless steel plate. Pour the mixed resin into 2 / 3 of the paper cup, and make 3 samples in total. Mark the time, ambient temperature and humidity, and sample number on the surface of the paper cup. Heat the sample in an oven for 20 minutes. Then put the sample in water at 20-30℃ for 25 minutes. Divide each sample into 3 areas and use a shore D hardness tester to measure the hardness of each area. When the hardness of all areas is greater than 79, it is qualified and the hardness value is recorded in the table. Resin molding verification: The resin molding verification test includes plane module resin strip verification, CP1 corner module resin strip verification, and CP3 corner module resin strip verification. Each module type is divided into C1, C2, C3, C4, and C5 resin strips. Each type of resin strip is verified for appearance, height, cross-sectional area, and width after ballasting, and various parameters during coating are recorded separately; Working time verification, the working time is determined based on the minimum value between the ballast time and the resin exposure time, and each test is tested at both the lowest temperature and the highest temperature.

2. The MARK3 type LNG ship resin machine adhesion verification method according to claim 1 is characterized in that: Before starting the verification, record the temperature and humidity in the verification area and replace the ratio test joint of the resin machine.

3. The MARK3 type LNG ship resin machine adhesion verification method according to claim 2 is characterized in that: Before starting the verification, the temperature was controlled at 15-35°C and the humidity was ≤70%.

4. The MARK3 type LNG ship resin machine adhesion verification method according to claim 1, characterized in that: When the sample is weighed by an electronic scale, the experimental resin weight: curing agent weight = 100:80, with a tolerance range of ±10%.

5. The MARK3 type LNG ship resin machine adhesion verification method according to claim 1, characterized in that: Before performing the hardness verification step, preheat the oven, put the temperature sensing wire into the oven during preheating, check the temperature, and maintain the temperature when the temperature reaches 120°C.

6. The MARK3 type LNG ship resin machine adhesion verification method according to claim 1, characterized in that: When performing the step of verifying the working time, the minimum temperature is 15°C and the maximum temperature is 35°C.

7. The MARK3 type LNG ship resin machine adhesion verification method according to claim 1, characterized in that: The steps of verifying the planar module resin strip include: Each resin strip is measured at 5 locations, with an average value of ≥25mm, a minimum value of ≥20mm, and a width greater than 22mm within 50mm of the end; Apply 4 C1 to C5 resin strips on the module respectively. Use wedges of corresponding thickness next to each resin type, and then use a plexiglass flat plate to press the resin strips. Measure the width of the resin strips after ballasting. Measure 5 positions on each resin strip and calculate the average width. Measure 3 resin strips for each resin type and keep one resin strip. After it hardens, cut it in the middle and measure the cross-sectional area of ​​the resin strip.

8. The MARK3 type LNG ship resin machine adhesion verification method according to claim 1, characterized in that: The steps of verifying the resin strip of the CP1 corner module and verifying the resin strip of the CP3 corner module include: When coating the corner module, the module is placed on the coating platform at an angle. The coated resin is perpendicular to the bottom plate of the module. An angled nozzle is used according to the different angles of the module. The nozzle is always kept perpendicular to the module during coating. Coat 4 C1 to C5 resin strips on the CP1 and CP3 modules respectively. Use wedges of corresponding thickness next to each resin type, and then use a plexiglass flat plate to press the resin strips. Measure the width of the resin strips after ballasting. Measure 5 positions on each resin strip and calculate the average width. Measure 3 resin strips for each resin type and keep one resin strip. After it hardens, cut it in the middle and measure the cross-sectional area of ​​the resin strip.

9. The MARK3 type LNG ship resin machine adhesion verification method according to claim 1, characterized in that: The steps for verification based on ballast time include: A protective film is attached to the test module every 100mm, and several groups of resin strip samples with a spacing of 80mm are coated. Then the protective film is torn off to ensure that each group of samples is two C2 resin strips with a length of 100mm and a spacing of 80mm between the resins. The coating start time and the ambient temperature and humidity are recorded; Place 4mm wedges at the four corners of the sample, put a protective film on the resin strip, place plywood and a 10kg weight, and record the placement time; After 5 minutes, check the number of plywood sticking to the wedges. If there are ≥ 3, continue to the next group. When there are less than 3 positions contacting the wedge after 5 minutes of pressing, record the time, which is the ballasting time at that temperature.

10. The MARK3 type LNG ship resin machine adhesion verification method according to claim 1, characterized in that: The steps to verify based on resin exposure time include: Place the painted steel plate in the test chamber and monitor the laboratory temperature. When the temperature reaches the required temperature, maintain it; Apply several strips of C1 resin on the plywood and record the time, then quickly transport the resin strips to the test room; The resin was applied to the bottom of the tooling at intervals of 10 minutes, and 5 specimens were mounted on the steel plate; After installation, maintain this temperature for 3 days; After 3 days, use a tensile tester to conduct a tensile test and record the tensile value. When the tensile value is less than 10MPA, the time of installing the tooling in the previous batch is the resin exposure time.

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