WO2019100543A1 - Procédé de construction d'un modèle de fond de navire en résine époxy et dispositif de berceau de navire devant être moulé - Google Patents

Procédé de construction d'un modèle de fond de navire en résine époxy et dispositif de berceau de navire devant être moulé Download PDF

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Publication number
WO2019100543A1
WO2019100543A1 PCT/CN2018/000049 CN2018000049W WO2019100543A1 WO 2019100543 A1 WO2019100543 A1 WO 2019100543A1 CN 2018000049 W CN2018000049 W CN 2018000049W WO 2019100543 A1 WO2019100543 A1 WO 2019100543A1
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Prior art keywords
epoxy resin
mold
ship
bracket
weight
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Ceased
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PCT/CN2018/000049
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English (en)
Chinese (zh)
Inventor
李春洪
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3067—Ships

Definitions

  • the invention belongs to the technical field of modeling, and relates to a modeling method of an epoxy resin ship bottom model and a molding ship carrier device.
  • the standard sample, or "main model” is used to re-form the mold of the sheet metal part.
  • the progress and accuracy of a product development depends on the processing of standard entities and master models.
  • the main model reflects the total assembly relationship of the cover and the components one by one. It is the basis for manufacturing and reworking various molds and assembly fixtures, as well as the manufacture and coordination of sheet metal parts. People are interested in the research of standard entities and master models.
  • the existing processing technology of the main model with epoxy resin as the binder, most of the processes are complicated, difficult to process, high in cost and long in production cycle.
  • plastic processing using epoxy resin as a binder due to the large proportion of minerals used as fillers, which causes the processing of plastic molds to have high strength, low toughness, high brittleness, and poor machining performance.
  • the present invention provides a method for modeling an epoxy resin ship bottom model and a mold boat bracket device which can mold and demould the bottom of the ship, including a mold boat bracket and a mixed layer.
  • the epoxy resin mixture is shaped, and the epoxy resin mixture is compression molded by the bottom mold to form a new ship bracket, and the integrity of the hull can be observed from the ship bracket, which has a good inspection effect on the construction of the ship bottom.
  • the invention aims to adjust the modeling of different shapes of the bottom of the ship, and the air drying device can accelerate the molding time of the mold, and the cleaning device can automatically clean the device; the shaping effect is diversified, the operation is simple and novel.
  • a method for modeling an epoxy resin bottom model includes the following steps:
  • Step one placing a large-sized plastic cloth with good sealing on the mold carrier bracket, and the periphery of the plastic cloth is fixedly mounted on the frame of the mold carrier bracket by a stopper and a sealant;
  • Step 2 the plastic sheet is covered with at least two layers of plastic film, and then at least two layers of kapok, shredded paper and flexible chain broken material are laid on the plastic film to form a mixed layer, and the mixed material is mixed.
  • the top of the layer is covered with a plastic film;
  • Step 3 Put the bottom mold of the mold to be molded, adjust the height of the hydraulic device on the bracket of the mold boat according to the shape of the bottom of the bottom mold, and at the same time, cooperate with the steering limit device to establish a prototype of the bottom shape of the bottom of the ship, and the mold carrier bracket After adjusting the bottom contour and line of the bottom of the ship, take out the bottom mold of the mold to be molded; then, after applying the release agent to the insert and preheating, install the insert to the corresponding position of the mold ship bracket where the reserved hole needs to be set;
  • Step 4 Preparing an epoxy resin mixture: First, the epoxy resin is placed in a batching tank for heating and melting, and when the epoxy resin reaches a predetermined temperature, the filler and the molten epoxy resin are uniformly stirred until there is no A large amount of foam is sent to the degassing tank for degassing, then poured into a vacuum vessel and thoroughly mixed, and defoaming agent is added for defoaming treatment; secondly, the curing agent is heated and melted, and then the curing agent and the mixture are mixed.
  • the magnetic toner includes a toner mother particle and an external additive, and the adjustment
  • the toner mother particles include at least a binder resin and magnetic particles;
  • the magnetic particles include a hydrophobized nitrogen-doped graphite sheet and magnetic iron oxide particles, the hydrophobic with respect to 100 parts by weight of the magnetic particles
  • the nitrogen-doped graphite sheet is added in an amount of 30 parts by weight to 50 parts by weight, and the magnetic iron oxide fine particles are added in an amount of 50 parts by weight to 70 parts by weight; relative to 100 parts by weight of the binder Fat, added in an amount 50 parts by weight of the magnetic particles to 150 parts by weight; the epoxy resin after addition of the magnetic toner blend ready for casting work;
  • Step 5 pouring the epoxy resin mixture into the mold boat bracket paved in step three, and then laying at least one plastic film on the epoxy resin mixture;
  • Step 6 preheating the mold bottom mold of the mold, and preheating the bottom mold of the ship is coated with a plastic film and then applying a release agent; then pressing it into the epoxy resin mixture of step 5, the epoxy resin compounding
  • the model is solidified and demolded; after demolding, secondary curing, mechanical processing and inspection are carried out to obtain an epoxy resin bottom model.
  • the base material and a certain amount of curing agent are uniformly mixed, poured into the module, cured at an ambient temperature of 50 ° C to 60 ° C for more than 8 hours, then placed in a room temperature environment for more than 7 days, and then demolded And according to the size requirements of the sample; the casting of the gasket according to the center position of the shafting, the thickness of the casting gasket is usually in the range of 15mm to 70mm, generally 25mm to 45mm, more than 50mm can be layered casting.
  • the magnetic toner is added to have high durability developability, is not easily affected by the environment, and can maintain high image density, suppress fog generation, and has excellent image reproducibility even when used for a long period of time.
  • the epoxy resin described above is uniformly stirred to 65 ° C, and then mixed with a filler, followed by addition of a curing agent; the epoxy resin and the filler are mixed in a ratio of 1:1.2 and uniformly stirred to 70 ° C.
  • the mixture is sent to a degassing tank for degassing; the pressure in the degassing tank is 0.11 kPa, and the degassing time is 3 hours; the time when the mixing pump is pumped into the degassing tank is not More than 4 hours.
  • pour the curing agent into the barrel with the base material stir evenly to avoid air bubbles.
  • the above-mentioned mixing material is poured into the mold ship carrier, and the position of the hole piece is added to the position of the hole piece mold to ensure the position of the hole piece is reserved during the pouring process, and the defoaming is added again during the pouring process.
  • the agent reduces the generation of bubbles; the casting speed of the pouring process is maintained at 2 kg/hr; the casting is completed and the bottom shape model is immediately capped and cured.
  • the curing condition should be Meet the following requirements: a) ambient temperature below 10 ° C, using heating measures, curing time is 48 hours; b) curing temperature is 10 hours when the ambient temperature is 10 ° C to 20 ° C; c) ambient temperature is greater than 20 ° C to 30 At °C, the room temperature curing time is 24 hours; d) The ambient temperature is above 30 °C, the pouring work should be carried out at night or in the morning, avoiding high temperature during curing, and the room temperature curing time is 12 hours.
  • the surface of the mold and the insert described above is first wrapped with a plastic film, and then the release agent is applied.
  • the plastic film is a non-polar material and is inactive with epoxy resin. Here, it is used to increase the effect of demolding. First, the plastic film is wrapped, and then the release agent is applied to help release the mold.
  • the above-mentioned molding ship carrier device comprises a bracket, an air drying device, a steering limit device, a hydraulic device, a cleaning device and a liquid rust preventive;
  • the bracket comprises a frame, a bracket, a chassis, a leg and a groove rod;
  • the frame and the groove rod are connected and the frames are spaced apart from each other; one of the frames is provided with a guide rail;
  • the groove rod and the bracket are connected to each other and the groove rods are spaced apart from each other;
  • the bracket and the chassis are connected and the brackets are spaced apart from each other;
  • the legs and the chassis are connected to each other and the legs are spaced apart from each other;
  • the steering limiting device comprises a contact block, a rotating sleeve, a rotor, and a spring column And the connecting block;
  • the contact block is fixedly connected to the rotating sleeve;
  • the rotor is fixedly connected with the connecting block;
  • the value is controlled in the range of 11 to 14.
  • the hydraulic system is controlled by the control system to perform the rotation or fixation of the telescopic and steering limit device to form a shape to be shaped; when the central axis of the hull is molded, the control system controls the steering limit device.
  • the spring column is tightened so that the rotating sleeve cannot rotate on the rotor, which acts to lock the steering limit device on the central axis of the bottom of the support hull.
  • Different bottom shapes can be formed by adjusting different heights of the telescopic rods on the hydraulic device by the control system; the air drying device disposed on the frame has a function of air drying on the plastic mold; and the cleaning device disposed on the frame with one side of the guide rail can be The bottom frame is cleaned by moving left and right on the guide rail, and the cleaned waste water is discharged through a small hole provided in the bottom frame.
  • the present invention can be modeled for different shapes of the bottom of the ship, and the smoothness after modeling is good.
  • the invention can speed up the molding time of the mold and can automatically clean the equipment.
  • the invention has excellent shaping effect and convenient installation.
  • the invention is stable in long-term use in a high-temperature and high-humidity environment, has high durability developability, is not easily affected by the environment, and can maintain high image density, suppress fog generation even when used for a long time, and has excellent image reproduction. Sex.
  • Figure 1 is a schematic view showing the structure of a mold boat bracket.
  • Figure 2 is a schematic view of the position of the cleaning device.
  • FIG 3 is a schematic structural view of a steering limit device.
  • Figure 4 is an exploded view of the steering limit device.
  • a method for modeling an epoxy resin bottom model includes the following steps:
  • Step one placing a large-sized plastic cloth with good sealing property on the mold boat bracket, and the plastic cloth is connected end to end with a stopper and a sealant;
  • Step 2 the plastic cloth is covered with at least two layers of plastic film, and then at least two layers of kapok, shredded paper and flexible chain broken material are laid on the film to form a mixed layer, and the mixed layer is The top of the plastic film;
  • Step 3 Put the bottom mold of the mold to be molded, adjust the height of the hydraulic device on the bracket of the mold boat according to the shape of the bottom of the bottom mold, and at the same time, cooperate with the steering limit device to establish a prototype of the bottom shape of the bottom of the ship, and the mold carrier bracket After adjusting the bottom contour and line of the bottom of the ship, take out the bottom mold of the mold to be molded; then, after applying the release agent to the insert and preheating, install the insert to the corresponding position of the mold ship bracket where the reserved hole needs to be set;
  • the filler is subjected to vacuum drying treatment, and the epoxy resin is heated and melted.
  • the epoxy resin reaches a specific temperature
  • the vacuum-dried filler and the molten epoxy resin are poured into a vacuum container.
  • the curing agent is subjected to heat-melting treatment, and then the curing agent and the mixed epoxy resin are thoroughly mixed to obtain an epoxy resin mixture, and then mixed into the mixture.
  • a magnetic toner is added to the material;
  • the magnetic toner comprises a toner mother particle and at least an external additive, the toner mother particle comprising at least a binder resin and magnetic particles;
  • the magnetic particles include a hydrophobic
  • the nitrogen-doped graphite sheet and the magnetic iron oxide fine particles are added in an amount of 30 parts by weight to 50 parts by weight based on 100 parts by weight of the magnetic particles, and the hydrophobized nitrogen-doped graphite sheet is added in an amount of 30 parts by weight to 50 parts by weight.
  • the magnetic iron oxide fine particles are added in an amount of 50 parts by weight to 70 parts by weight, and the magnetic particles are added in an amount of 50 parts by weight to 150 parts by weight based on 100 parts by weight of the binder resin; After mixing the epoxy resin to prepare a toner pouring work;
  • Step 5 pouring the epoxy resin mixture into the mold boat bracket paved in the second step, and laying at least one plastic film on the epoxy resin mixture;
  • step 6 the insert and the mold to be molded are respectively applied with a release agent, and then the mold is assembled and preheated, and the heated mold is wrapped with a plastic film; then it is pressed into the epoxy resin mixture of the fourth step. .
  • the epoxy resin is uniformly stirred to 65 ° C, and then mixed with a filler, and then added with a curing agent; the epoxy resin and the filler are mixed in a ratio of 1:1.2 and uniformly stirred to 70 ° C, and then the mixture is fed.
  • Degassing is performed in the degassing tank; the pressure in the degassing tank is 0.11 kPa, and the degassing time is 3 hours; the mixing time of the mixing pump into the degassing tank is not more than 4 hours.
  • the mixing material is poured into the mold ship carrier. During the pouring process, the hole mold is added to the position where the fixing hole piece is left to determine the position reserved for the hole piece, and the defoaming agent is added again during the pouring process to reduce the generation of bubbles.
  • the casting speed of the casting process was maintained at 2 kg/hr; the casting was completed and the bottom shape model was immediately capped and cured.
  • the surface of the mold and the insert is first wrapped with a plastic film, and then the release agent is applied.
  • a molding ship carrier device comprises a bracket, an air drying device 1, a steering limit device 3, a hydraulic device, a cleaning device 9 and a liquid rust preventive agent;
  • the bracket comprises a frame 2, a bracket 4, and a chassis 8 , the frame foot 10 and the groove rod 12; the frame 2 and the groove rod 12 are connected and the frames 2 are spaced apart from each other; one of the frames 2 is provided with a guide rail; the groove rod 12 and the bracket 4 are interconnected and the groove rods 12 are spaced apart from each other; the bracket 4 and the chassis 8 are connected and the brackets 4 are spaced apart from each other; the legs 10 and the chassis 8 are connected to each other and the legs 10 are
  • the steering limiting device 3 includes a contact block 15, a rotating sleeve 16, a rotor 17, a spring post and a connecting block 18; the contact block 15 is fixedly connected with the rotating sleeve 16; The connecting block 18 is fixedly connected; the rotating sleeve 16 is wrapped around the rotor 17;
  • the base material and a certain amount of curing agent are uniformly mixed, poured into the module, cured at an ambient temperature of 50 ° C to 60 ° C for more than 8 hours, then placed in a room temperature environment for more than 7 days, and then demolded And according to the size requirements of the sample; the casting of the gasket according to the center position of the shafting, the thickness of the casting gasket is usually in the range of 15mm to 70mm, generally 25mm to 45mm, more than 50mm can be layered casting.
  • pour the curing agent into the barrel with the base material stir evenly to avoid air bubbles.
  • the curing condition should be Meet the following requirements: a ambient temperature below 10 ° C, using heating measures, curing time is 48 hours; b ambient temperature is 10 ° C to 20 ° C, the curing time is 48 hours; c ambient temperature is greater than 20 ° C to 30 ° C, The room temperature curing time is 24 hours; d ambient temperature is above 30 ° C, the pouring work should be carried out in the evening or early morning, avoid high temperature during curing, and the room temperature curing time is 12 hours.
  • the plastic film is a non-polar material and is inactive with epoxy resin. Here, it is used to increase the effect of demolding.
  • the plastic film is wrapped, and then the release agent is applied to help release the mold.
  • the control system controls the spring column on the steering limiting device 3 to be tightened, so that the rotating sleeve 16 cannot rotate on the rotor 17, thereby locking the steering limit on the central axis of the bottom of the supporting hull.
  • Different bottom shapes can be formed by adjusting different heights of the telescopic rods 5 on the hydraulic device by the control system; the air drying device 1 disposed on the frame 2 has a function of air drying on the mold; and cleaning on the frame 2 provided on one side of the guide rail
  • the apparatus 9 can clean the underframe 8 by moving left and right on the guide rail, and the washed waste water is discharged through the small holes 7 provided in the chassis 8.
  • the structure and principle of the second embodiment are basically the same as those of the first embodiment. The difference is that the order of the operation is changed. After the epoxy resin mixture is poured into the mold carrier bracket, the height of the hydraulic device of the mold boat bracket is adjusted. Form the shape required for the mold.

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  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de construction d'un modèle de fond de navire en résine époxy. Selon le procédé, un fond de navire peut être moulé et démoulé. Le procédé comprend : la mise en forme un mélange de résine époxy au moyen d'un berceau d'un navire devant être moulé et d'une couche de matériaux mélangés puis la pression du mélange de résine époxy au moyen d'un moule inférieur de navire pour former un nouveau berceau de navire de sorte que l'intégrité d'un corps de navire peut être observée à partir du berceau de navire et un bon effet d'inspection sur un fond de navire construit peut être obtenu. Le procédé de construction de modèle peut mettre en œuvre un ajustement pendant la modélisation pour des fonds de navire sous différentes formes ; en outre, un moyen de séchage à l'air (1) peut raccourcir le temps de formation d'un moule et un moyen de nettoyage (9) peut nettoyer automatiquement un dispositif, de sorte que le dispositif présente une durabilité et une performance de développement élevées, n'est pas facilement affecté par l'environnement, est capable de maintenir une densité d'image élevée et de supprimer un brouillard malgré une longue période d'utilisation, présente une bonne reproductibilité d'image et peut atteindre des effets de mise en forme diversifiés et présente un fonctionnement simple et nouveau.
PCT/CN2018/000049 2017-11-22 2018-01-25 Procédé de construction d'un modèle de fond de navire en résine époxy et dispositif de berceau de navire devant être moulé Ceased WO2019100543A1 (fr)

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CN201711171553.3 2017-11-22
CN201711171553.3A CN107932806A (zh) 2017-11-22 2017-11-22 一种环氧树脂船底模型的建模方法及塑模船托架装置

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WO2019100543A1 true WO2019100543A1 (fr) 2019-05-31

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CN107932809A (zh) * 2017-11-22 2018-04-20 李春洪 一种使用船托架装置进行建模的方法及船托架装置

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CN101641254A (zh) * 2007-02-16 2010-02-03 金成润 用于制造复合材料制成的船的模具装置及其制作方法
KR20120081695A (ko) * 2011-01-12 2012-07-20 주식회사 마스타마린 조선 에프알피 선박 제조용 몰드
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