CN114515056B - Method for coating binding piece by using coating tool - Google Patents

Method for coating binding piece by using coating tool Download PDF

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Publication number
CN114515056B
CN114515056B CN202210185801.4A CN202210185801A CN114515056B CN 114515056 B CN114515056 B CN 114515056B CN 202210185801 A CN202210185801 A CN 202210185801A CN 114515056 B CN114515056 B CN 114515056B
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CN
China
Prior art keywords
coating
brush
binding piece
brush face
binding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210185801.4A
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Chinese (zh)
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CN114515056A (en
Inventor
邢炳亮
杜金
袁金玲
廖铁柱
陈澄
周少强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Shipyard International Co Ltd
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Guangzhou Shipyard International Co Ltd
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Filing date
Publication date
Application filed by Guangzhou Shipyard International Co Ltd filed Critical Guangzhou Shipyard International Co Ltd
Priority to CN202210185801.4A priority Critical patent/CN114515056B/en
Publication of CN114515056A publication Critical patent/CN114515056A/en
Application granted granted Critical
Publication of CN114515056B publication Critical patent/CN114515056B/en
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Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B11/00Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/06Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water connected to supply pipe or to other external supply means
    • A46B11/063Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water connected to supply pipe or to other external supply means by means of a supply pipe
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B11/00Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/0072Details
    • A46B11/0079Arrangements for preventing undesired leakage or dispensing
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B3/00Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/08Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/002Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0025Brushes with elastically deformable heads that change shape during use
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/028Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/20Brushes for applying products to surfaces in general
    • A46B2200/202Applicator paint brush

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The application provides a method for coating binding pieces by using a coating tool, which comprises the following steps: dividing the ship in sections, wherein the distance between the dividing lines of the sections and the binding holes is not less than 100 mm; before entering the shed in a segmented mode, welding and forming the binding piece, and finishing an airtight experiment; the sectional coating stage is used for carrying out surface treatment on the inner side of the groove of the binding piece; taking coating liquid and a coating tool, and coating the binding piece; after the coating is solidified, protecting the binding piece, and then enabling the segments to enter a dock for hull folding; before ship delivery, removing the protective layer and repairing the damaged coating; according to the binding piece coating method, the binding piece coating stage is reasonably planned, tens of thousands of binding piece wharfs are integrally coated and decomposed to the segmentation stage, coating is carried out in the segmentation coating stage, protection is carried out, and only the surfaces of the wharf stages are cleaned, so that the centralized coating of the wharf stages is avoided, and the integral construction period is influenced.

Description

Method for coating binding piece by using coating tool
Technical Field
The application relates to the field of ship manufacturing, in particular to a method for coating binding pieces by using a coating tool.
Background
In order to ensure the automobile parking stability and the ship running safety on the automobile deck of the passenger rolling ship, a large number of binding pieces are arranged on the floor of the automobile deck. The binding piece needs to be subjected to an airtight test after being installed, so that the coating stage is relatively late, the binding piece is generally coated with the floor at a wharf stage, the matched paint is consistent with the surrounding, and the inorganic zinc silicate rich primer, the epoxy connecting paint and the epoxy finishing paint are used.
Several tens of thousands to hundreds of thousands of ship binding pieces are left at the wharf for centralized construction, the construction efficiency is low, and the whole construction period is affected.
The inorganic silicate zinc-rich primer has higher requirements on the surface treatment to be coated, the P3 level is required, the space structure of the inner surface of the binding hole is smaller, the polishing device is difficult to treat, the treatment cannot be thoroughly performed, and the coating quality is affected.
Disclosure of Invention
Accordingly, there is a need for a method of coating a binding member with a coating tool with high coating efficiency and good coating quality.
In order to solve the technical problems, the application provides a method for coating binding pieces by using a coating tool, which comprises the following steps:
dividing the ship in sections, wherein the distance between the dividing lines of the sections and the binding holes is not less than 100 mm;
before entering the shed in a segmented mode, welding and forming the binding piece, and finishing an airtight experiment;
the sectional coating stage is used for carrying out surface treatment on the inner side of the groove of the binding piece;
taking coating liquid and a coating tool, and coating the binding piece;
after the coating is solidified, protecting the binding piece, and then enabling the segments to enter a dock for hull folding;
before ship delivery, the protective layer is removed and the damaged coating is repaired.
Preferably, the surface treatment is carried out on the inner side of the binding piece groove in the stage of sectional coating: and carrying out indiscriminate touch typing on the binding pieces by adopting a sand blasting gun, and then cleaning.
Preferably, the coating liquid is epoxy coating, a first coating layer is coated during coating, and a second coating layer is coated after the first coating layer is air-dried.
Preferably, the ligature is protected by the following method:
taking rubber, and covering the rubber on the surface of the binding piece;
and (3) taking wear-resistant gummed paper, and covering and sealing the surface of the rubber skin by using the wear-resistant gummed paper, wherein the wear-resistant gummed paper at least exceeds the rubber skin by 3 mm.
Preferably, the overlapping area of the wear-resistant gummed paper is staggered with the cross direction of the cross groove of the binding piece.
Preferably, the coating tool comprises a coating device, wherein the coating device comprises a handle and a hairbrush, and the handle is fixedly connected with the hairbrush; the brush comprises a fixing part and bristles, wherein the bristles are fixed on the fixing part; the fixing piece is made of a plastic material, the plastic material is a metal wire, and the bristles are clamped on the screwed iron wire bundles.
Preferably, the fixing part comprises a connecting end and a hook end, the hook end is in a barb shape, and the connecting end is parallel to the handle; the upper portion of crotch end is formed with first brush face, the lower part of crotch end is formed with the second brush face, the junction of first brush face and second brush face forms the acute angle arc, the end of first brush face with the second brush face extends to being close to the direction of handle.
Preferably, the first brush surface is concave-arc-shaped, the second brush surface is convex-arc-shaped, and the protruding directions of the first brush surface and the second brush surface are the same.
Preferably, a third brush surface is further formed on the hairbrush, the third brush surface is positioned at the bottom of the hairbrush, and the third brush surface is also arranged in an arc shape; the fixed part is an iron wire bundle, two ends of the fixed part are fixed on the handle, and the hook end and the connecting end are on the same plane.
Preferably, the ligature coating device further comprises a liquid guide pipe, a valve for controlling whether the liquid guide pipe is conducted or not is arranged on the handle, and the liquid guide pipe is fixed on the fixing part and extends along the fixing part; the two liquid guide pipes are arranged and extend from the direction of the handle to the direction far away from the handle.
According to the method for coating the binding pieces by using the coating tool, disclosed by the application, the coating stage of the binding pieces is reasonably planned, the whole coating of tens of thousands of binding piece wharfs is decomposed into the sectional coating stage, the coating is performed in the sectional coating stage, the surface is only cleaned in the wharf stage, and the influence on the whole construction period due to the centralized coating in the wharf stage is avoided.
By combining the structural characteristics of the binding piece, the surface sand blasting cleaning is performed in a 'touch typing' mode, the corrosion prevention is performed by utilizing the principle of isolating oxygen to block corrosion, and the problem of insufficient surface treatment is solved.
The method of combining the rubber and the wear-resistant rubber is adopted to protect the finished coating constructed in the segmentation stage and avoid reworking.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular description of preferred embodiments of the application, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the application.
FIG. 1 is a schematic side view of a ligating member;
FIG. 2 is a schematic top view of a ligating member;
FIG. 3 is a schematic view of the construction of the ligating member coating apparatus of the present application;
FIG. 4 is a schematic view of a ligating member coating apparatus according to another embodiment of the application;
fig. 5 is a schematic top view of a ligature with a protective layer attached.
In the figure: 1. a handle 1; 2. a brush; 21. a fixing part; 211. a connection end; 212. a hooked end; 213. a first brush face; 214. a second brush face; 215. an acute arc; 216. a third brush face; 22. brushing; 3. a catheter; 31. a valve; 10. a top surface; 20. a sidewall; 30. a bottom wall; 50. rubber glue; 60. wear-resistant gummed paper.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 5, in order to solve the above technical problems, the present application provides a method for coating a binding member using a coating tool, comprising the steps of:
the ships are divided in sections, and the distance between the dividing lines of the sections and the binding holes is not less than 100mm, so that the coating of the binding piece is prevented from being damaged by the subsequent folding of the sections.
Before entering the shed in a segmented mode, welding and forming the binding piece, and finishing an airtight experiment; welding ligatures and air tightness experiments are all prior art and will not be described in detail herein.
The sectional coating stage is used for carrying out surface treatment on the inner side of the groove of the binding piece; the surface treatment can be performed by using a sand blasting gun or a knocking type rust removing device, and the sand blasting gun is more convenient to use.
Taking coating liquid and a coating tool, and coating the binding piece;
after the coating is solidified, protecting the binding piece, and then enabling the segments to enter a dock for hull folding, namely welding and fixing the segments fixed with the coated binding piece together;
before ship delivery, the protective layer is removed and the damaged coating is repaired.
In a preferred embodiment, the surface treatment is carried out on the inner side of the binding groove in the stage of sectional coating: and carrying out indiscriminate touch typing on the binding pieces by adopting a sand blasting gun, and then cleaning.
In a preferred embodiment, the coating liquid is an epoxy coating, a first coating layer is coated during coating, and a second coating layer is coated after the first coating layer is air-dried, wherein the first coating layer and the second coating layer are 100mm-200mm. Because the space inside the binding piece is narrow, the binding piece cannot be treated by using a power polishing tool, and the conventional epoxy coating is used for corrosion prevention by utilizing the principle of blocking corrosion by isolating air, so that the sacrificial anode corrosion prevention system of the inorganic zinc silicate rich paint with high surface treatment requirements is replaced.
Referring to fig. 5, in a preferred embodiment, the ligature is protected by the following method:
taking rubber leather 50, and covering the rubber leather 50 on the surface of the binding piece;
and taking wear-resistant adhesive paper 60 with the thickness of 2mm-3mm, and covering and sealing the surface of the rubber skin by using the wear-resistant adhesive paper 60, wherein the wear-resistant adhesive paper 60 at least exceeds the rubber skin by a distance of 3 mm.
In the preferred embodiment, if one strip of wear-resistant adhesive is not wide enough, two or three strips of wear-resistant adhesive are required to overlap and seal, and the overlapping area of the wear-resistant adhesive 60 is offset from the cross direction of the tie cross-shaped groove (as shown in fig. 5), reducing the chance of breakage during construction.
In the preferred embodiment, the coating tool comprises a coating device, a coating device and a coating device, wherein the coating device comprises a handle 1 and a hairbrush 2, and the handle 1 is fixedly connected with the hairbrush 2; the brush 2 includes a fixing portion 21 and bristles 22, the bristles 22 being fixed to the fixing portion 21; the fixing member is made of a moldable material. The moldable material is a material that can be easily changed in shape by hand. Such as iron wires, copper wires, aluminum plates, etc.
Referring to fig. 1 to 4, in a preferred embodiment, the fixing portion 21 includes a connection end 211 and a hooking end 212, the hooking end 212 is in a barb shape, and the hooking end 212 is biased to one side of the brush like a sickle, i.e., one side of the hooking end 212 does not protrude beyond an extension line of the handle. The connecting end 211 is parallel to the handle 1, and the handle 1 can be rotated to drive the connecting end 211 to rotate in the same way, so that the operation is better and the brushing efficiency is higher. The upper part of the hook end 212 is formed with a first brush face 213, the lower part of the hook end 212 is formed with a second brush face 214, and the junction of the first brush face 213 and the second brush face 214 forms an acute arc 215 (the acute arc 215 is a curve with a certain radian and the fingertip end angle is an acute angle), and the ends of the first brush face 213 and the second brush face 214 extend in a direction approaching the handle 1. The ligature has a top return surface 10, an inclined side wall 20 and a bottom wall 30 therein, a first brush surface 213 for brushing the top return surface 10, a second brush surface 214 for brushing the inclined side wall 20, and an acute arc 215 for brushing the angle between the top return surface 10 and the side wall 20.
In the preferred embodiment, the first brush face 213 is concave in arc, which means concave in the direction of the second brush face 214, the second brush face 214 is convex in arc, and the convex directions of the first brush face 213 and the second brush face 214 are the same. The convex arc shape means a convex direction away from the first brush face 213. The curvature of the depressions and the curvature of the projections are adapted to the surface to be painted and can be fine-tuned by hand if not appropriate.
In the preferred embodiment, the brush 2 further has a third brush surface 216 formed thereon, the third brush surface 216 is located at the bottom of the brush 2, and the third brush surface 216 is also disposed in an arc shape. The third brush face 216 is used to brush the bottom of the ligating member
In the preferred embodiment, the moldable material is wire and the bristles 22 are clamped to the twisted wire bundle.
In the preferred embodiment, the fixing portion 21 is a wire bundle, and both ends of the fixing portion 21 are fixed to the handle 1, and the hooked end 212 and the connecting end 211 are on the same plane. The brush 2 is in a flake shape and conveniently extends into the binding piece.
Referring to fig. 1-4, in a preferred embodiment, the application of the ligature using the apparatus is performed as follows;
the barb inclination of the hook end is finely adjusted according to the size of the binding piece to be coated;
after the paint is adhered, the paint stretches into the binding piece;
when in coating, the coating device is rotated to carry out coating;
the first brush face 213 is coated with paint on the ligating member return top face 10;
the second brush face 214 coats the side wall 20 of the ligating member;
the third brush face 216 coats the bottom wall 30 of the ligature.
In the preferred embodiment, before coating, the coating liquid is poured into the binding piece, and when the coating is applied, if the coating liquid needs to be dipped for many times, the coating liquid can be poured into the binding piece, and the coating device can be used for uniformly coating, so that the time waste caused by dipping the coating liquid in the method is avoided.
In a preferred embodiment, the ligature coating apparatus further comprises a liquid guide tube 3, wherein the liquid guide tube 3 is positioned on the inner side of the fixing part 21, namely, between the first brush face 213, the second brush face 214 and the third brush face 216, the use of the coating apparatus is not affected, a valve 31 for controlling whether the liquid guide tube 3 is conducted is arranged on the handle 1, and the liquid guide tube 3 is fixed on the fixing part 21 and extends along the fixing part 21. The liquid guide tube 3 introduces the coating liquid into the binding piece, and then the coating device is used for uniformly coating.
In a further preferred embodiment, two catheters 3 are provided, two catheters 3 extending from the direction of the handle 1 in a direction away from the handle 1. I.e. the upper handle 1 is placed upwards, the catheter 3 extends from above downwards.
In a preferred embodiment, the device is used to paint a ligating member according to the following steps;
the barb inclination of the hook end is finely adjusted according to the size of the binding piece to be coated;
extending the brush 2 into the binding piece, and opening the valve 31 to enable the coating liquid to flow to the brush 2;
when in coating, the coating device is rotated to carry out coating;
the first brush face 213 is coated with paint on the ligating member return top face 10;
coating the side wall 20 of the ligature with a second brush face 214;
the bottom wall 30 of the ligature is coated with a third brush face 216.
The binding piece coating device utilizes an iron wire bundle to twist and bind the brush hair 22 to form an adjustable shape coating device, uses an arc tail to adapt to the arc structure inside the binding piece, uses a tail end arc barb to coat the binding piece to return to the top, changes the fixed shape characteristic of a conventional coating tool, and further improves the coating efficiency.
According to the method for coating the binding pieces by using the coating tool, disclosed by the application, the coating stage of the binding pieces is reasonably planned, the whole coating of tens of thousands of binding piece wharfs is decomposed into the sectional coating stage, the coating is performed in the sectional coating stage, the surface is only cleaned in the wharf stage, and the influence on the whole construction period due to the centralized coating in the wharf stage is avoided.
By combining the structural characteristics of the binding piece, the surface sand blasting cleaning is performed in a 'touch typing' mode, the corrosion prevention is performed by utilizing the principle of isolating oxygen to block corrosion, and the problem of insufficient surface treatment is solved.
The method of combining the rubber and the wear-resistant rubber is adopted to protect the finished coating constructed in the segmentation stage and avoid reworking.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description of the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (3)

1. A method of coating a ligating article with a coating tool, comprising the steps of:
dividing the ship in sections, wherein the distance between the dividing lines of the sections and the binding holes is not less than 100 mm;
welding and forming the binding piece, and finishing an airtight experiment;
the sectional coating stage is used for carrying out surface treatment on the inner side of the groove of the binding piece;
taking coating liquid and a coating tool, and coating the binding piece;
after the coating is solidified, protecting the binding piece, and then enabling the segments to enter a dock for hull folding;
before ship delivery, removing the protective layer and repairing the damaged coating;
and in the stage of sectional coating, carrying out surface treatment on the inner side of the groove of the binding piece: performing indiscriminate touch typing on the binding pieces by adopting a sand blasting gun, and then cleaning;
the coating liquid is epoxy coating, a first coating layer is coated during coating, and a second coating layer is coated after the first coating layer is air-dried;
the binding piece is protected by adopting the following method:
taking rubber, and covering the rubber on the surface of the binding piece;
taking wear-resistant gummed paper, and covering and sealing the surface of the rubber skin by using the wear-resistant gummed paper, wherein the wear-resistant gummed paper at least exceeds the rubber skin by 3 mm;
the coating tool comprises a handle and a brush, and the handle is fixedly connected with the brush; the brush comprises a fixing part and bristles, wherein the bristles are fixed on the fixing part; the fixing part is made of a plastic material, the plastic material is a metal wire, the brush hair is clamped on a screwed iron wire bundle, the fixing part is an iron wire bundle, two ends of the iron wire bundle are fixed on the handle, the fixing part comprises a connecting end and a hook end, the hook end is in a barb shape, and the connecting end is parallel to the handle; the hook end and the connecting end are on the same plane; the upper portion of crotch end is formed with first brush face, the lower part of crotch end is formed with the second brush face, the junction of first brush face and second brush face forms acute angle arc, first brush face with the terminal orientation of second brush face is close to the direction of handle extends, first brush face is concave arcuation, the second brush face is protruding arcuation, and first brush face with the protruding orientation of second brush face is the same, still be formed with the third brush face on the brush, the third brush face is located the bottom of brush, just the third brush face is the arc setting also, first brush face coating spare returns top surface paint, the lateral wall of second ligature coating spare, the diapire of third brush face coating ligature spare.
2. A method of coating a ligating member with a coating tool as recited in claim 1, wherein the overlapping region of the wear-resistant gummed paper is staggered in a cross direction from the cross recess of the ligating member.
3. The method of coating a ligating member with a coating tool according to claim 1, wherein the coating tool further comprises a liquid guide tube, a valve for controlling whether or not the liquid guide tube is conducted is provided on the handle, and the liquid guide tube is fixed to the fixing portion and extends along the fixing portion; the two liquid guide pipes are arranged and extend from the direction of the handle to the direction far away from the handle.
CN202210185801.4A 2022-02-28 2022-02-28 Method for coating binding piece by using coating tool Active CN114515056B (en)

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Application Number Priority Date Filing Date Title
CN202210185801.4A CN114515056B (en) 2022-02-28 2022-02-28 Method for coating binding piece by using coating tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210185801.4A CN114515056B (en) 2022-02-28 2022-02-28 Method for coating binding piece by using coating tool

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CN114515056B true CN114515056B (en) 2023-12-05

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB676310A (en) * 1949-09-01 1952-07-23 Norman Proudlove Improvements in brushes for cleaning the bowls or pans of water closets
CN204273598U (en) * 2014-11-17 2015-04-22 上海保立佳化工有限公司 The test-tube brush of automatic cleaning round-bottomed flask
CN112012436A (en) * 2020-08-26 2020-12-01 广船国际有限公司 Environment-friendly roller coating device
CN113148020A (en) * 2021-05-28 2021-07-23 广船国际有限公司 Installation and arrangement method of embedded type binding piece of container ship and ship

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060248669A1 (en) * 2005-05-03 2006-11-09 Royal Brush Manufacturing, Inc. Paint brush
US8568070B2 (en) * 2010-11-01 2013-10-29 Peck & Hale, L.L.C. Cargo lashing fitting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB676310A (en) * 1949-09-01 1952-07-23 Norman Proudlove Improvements in brushes for cleaning the bowls or pans of water closets
CN204273598U (en) * 2014-11-17 2015-04-22 上海保立佳化工有限公司 The test-tube brush of automatic cleaning round-bottomed flask
CN112012436A (en) * 2020-08-26 2020-12-01 广船国际有限公司 Environment-friendly roller coating device
CN113148020A (en) * 2021-05-28 2021-07-23 广船国际有限公司 Installation and arrangement method of embedded type binding piece of container ship and ship

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