阅读说明：本技术 一种方形锚唇的加工方法及方形锚唇 (Machining method of square anchor lip and square anchor lip ) 是由 刘亚伟 张松 刘娇玉 于 2020-05-25 设计创作，主要内容包括：本发明公开了一种方形锚唇的加工方法及方形锚唇,属于船舶制造技术领域。所述方形锚唇的加工方法,包括以下步骤：S1,在不锈钢板的边沿加工第一坡口,在不锈钢板上均匀开设多个塞焊孔；S2,将不锈钢板贴装在方形锚唇下端；S3,从不锈钢板的中心依次向外对称焊接塞焊孔形成塞焊焊缝；S4,焊接第一坡口与方形锚唇连接处形成坡口焊缝。所述方形锚唇由上述的方形锚唇的加工方法制成。本发明的方形锚唇的加工方法,加工工艺简单,连接可靠且制造成本低。本发明的方形锚唇,结构简单,强度、硬度以及耐锈蚀性好,延长了方形锚唇的使用寿命并提高了美观度。(The invention discloses a processing method of a square anchor lip and the square anchor lip, and belongs to the technical field of ship manufacturing. The processing method of the square anchor lip comprises the following steps: s1, processing a first groove on the edge of the stainless steel plate, and uniformly forming a plurality of plug welding holes on the stainless steel plate; s2, attaching a stainless steel plate to the lower end of the square anchor lip; s3, symmetrically welding plug welding holes outwards from the center of the stainless steel plate to form plug welding seams; and S4, welding the joint of the first groove and the square anchor lip to form a groove weld. The square anchor lip is manufactured by the processing method of the square anchor lip. The processing method of the square anchor lip has the advantages of simple processing technology, reliable connection and low manufacturing cost. The square anchor lip is simple in structure, good in strength, hardness and corrosion resistance, and capable of prolonging the service life of the square anchor lip and improving the attractiveness.)

1. The processing method of the square anchor lip is characterized by comprising the following steps of:

s1, processing a first groove (21) at the edge of a stainless steel plate (2), and uniformly forming a plurality of plug welding holes (22) on the stainless steel plate (2);

s2, attaching the stainless steel plate (2) to the lower end of the square anchor lip (1);

s3, symmetrically welding the plug welding holes (22) outwards from the center of the stainless steel plate (2) in sequence to form plug welding seams (32);

and S4, welding the joint of the first groove (21) and the square anchor lip (1) to form a groove weld (31).

2. The method for processing a square anchor lip according to claim 1, further comprising, before step S2:

s11, bending the stainless steel plate (2) to the radian identical to that of the square anchor lip (1).

3. The method for processing a square anchor lip according to claim 1, further comprising, before step S3:

s21, removing paint or dirt on the square anchor lip (1).

4. The method for processing a square anchor lip according to claim 1, further comprising, after step S4:

s41, polishing the plug welding seam (32) and the groove welding seam (31) between the stainless steel plate (2) and the square anchor lip (1).

5. A method of machining a square anchor lip according to claim 1, characterized in that the angle of the first bevel (21) is α, said α being 35-45 °.

6. A method for machining a square anchor lip according to claim 1, wherein the plug welding hole (22) is provided with a second bevel (221) at both ends.

7. A method for machining a square anchor lip according to claim 6, wherein the angle of the second bevel (221) is β, said β being 15-20 °.

8. The method of machining a square anchor lip of claim 1,

the welding material used for welding is an E309 stainless steel welding wire or an E309L stainless steel welding wire; and/or

Welding by manual arc welding; and/or

And machining the plug welding hole (22) by a laser cutting machine or a plasma cutting machine.

9. A square anchor lip, characterized by being manufactured by the method of processing a square anchor lip according to any one of claims 1 to 8.

10. A square anchor lip according to claim 9, characterized in that a stainless steel plate (2) is attached to the peripheral anchor lip of the square anchor lip (1).

Technical Field

The invention relates to the technical field of ship manufacturing, in particular to a square anchor lip and a processing method thereof.

Background

The upper and lower mouths of the anchor chain cylinder are generally provided with anchor lips for reducing the abrasion of the anchor chain and the upper and lower mouths. In the existing design, on special ships such as a passenger roller ship, a semi-submersible ship and the like, a square concave anchor lip made of C-Mn steel castings is basically adopted to reduce water and air resistance caused by anchors and splash caused by water hitting of anchor flukes. However, when the anchor retracts or retracts the anchor chain, the anchor can be violently rubbed or impacted with the square concave anchor lip, paint on the surface of the anchor lip steel casting is damaged, and even the surface of the anchor lip steel casting is scratched and indented. As the ship works in a complex marine environment all the year round, the surface of the anchor lip steel casting with damaged paint or surface damage is easy to be affected by the environment and rusted seriously, the service life of the anchor lip is shortened, the aesthetic degree of the bow part of the ship is also affected, and the maintenance frequency of the anchor lip is increased.

Disclosure of Invention

The invention aims to provide a method for processing a square anchor lip, which has the advantages of simple processing technology, reliable connection and low manufacturing cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a processing method of a square anchor lip comprises the following steps:

s1, processing a first groove on the edge of the stainless steel plate, and uniformly forming a plurality of plug welding holes on the stainless steel plate;

s2, attaching a stainless steel plate to the lower end of the square anchor lip;

s3, symmetrically welding plug welding holes outwards from the center of the stainless steel plate to form plug welding seams;

and S4, welding the joint of the first groove and the square anchor lip to form a groove weld.

Optionally, before step S2, the method further includes:

and S11, bending the stainless steel plate to the radian same as that of the square anchor lip.

Optionally, before step S3, the method further includes:

and S21, removing paint or dirt on the square anchor lip.

Optionally, after step S4, the method further includes:

and S41, polishing plug welding seams and groove welding seams between the stainless steel plate and the square anchor lip.

Optionally, the angle of the first bevel is α, α being 35-45 °.

Optionally, two ends of the plug welding hole are provided with second grooves.

Optionally, the angle of the second bevel is β, β being 15-20 °.

Optionally, the welding material used for welding is an E309 stainless steel welding wire or an E309L stainless steel welding wire; and/or

Welding by manual arc welding; and/or

And processing the plug welding hole by a laser cutting machine or a plasma cutting machine.

Another object of the present invention is to provide a square anchor lip which has a simple structure, good strength, hardness and corrosion resistance, and which can prolong the service life of the square anchor lip and improve the aesthetic appearance.

In order to achieve the purpose, the invention adopts the following technical scheme:

a square anchor lip is manufactured by the processing method of the square anchor lip.

Optionally, the stainless steel plate is attached to the peripheral anchor lip of the square anchor lip.

The invention has the beneficial effects that:

according to the processing method of the square anchor lip, provided by the invention, the welding is firm and the service life can be ensured through plug welding connection; a plurality of plug welding holes are uniformly distributed on the stainless steel plate and are symmetrically welded from the center in sequence, so that the deformation of the stainless steel plate in the welding process can be avoided, and the attaching effect is improved; groove welding is carried out to ensure that the welding root is completely welded, so that the welding firmness and the service life can be further ensured; the first groove is processed at the edge of the stainless steel plate, so that the fitting tightness of the stainless steel plate and the square anchor lip is improved, and the fitting effect is further improved; the processing method of the square anchor lip has the advantages of simple processing technology, reliable connection, low manufacturing cost and the like.

According to the square anchor lip, the processing method of the anchor lip is adopted, so that the strength, the hardness and the corrosion resistance of the square anchor lip are improved, the service life of the square anchor lip is prolonged, and the attractiveness is improved.

Drawings

FIG. 1 is a schematic illustration of a square anchor lip configuration provided by an embodiment of the present invention;

FIG. 2 is a schematic structural view of a stainless steel plate according to an embodiment of the present invention before being welded to a square anchor lip;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic structural view of a stainless steel plate welded to a square anchor lip according to an embodiment of the present invention;

fig. 5 is a sectional view B-B of fig. 4.

In the figure:

100-outer board of bow; 200-anchor chain; 300-anchor;

1-a square anchor lip;

2-stainless steel plate; 21-a first bevel; 22-plug weld hole; 221-a second bevel;

31-groove welding; 32-plug weld.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The anchor apparatus is one of the main apparatuses of the vessel, and as shown in fig. 1, is generally composed of an anchor 300, a hawse 200, a hawse pipe, an anchor raising mechanism, and an auxiliary apparatus. In order to reduce the abrasion of the anchor chain 200 to the upper and lower openings of the anchor chain case, an anchor lip is generally installed on the outer bow plate 100 to bear the collision force and friction of the anchor. In the existing design, on special ships such as a ro-ro passenger ship, a semi-submersible ship and the like, a square concave anchor lip made of C-Mn steel castings is basically adopted to reduce water and air resistance caused by an anchor 300 and splash splashing caused by water hitting of an anchor fluke. When the anchor 300 receives and releases the anchor chain 200, the anchor 300 can be violently rubbed or impacted with the square anchor lip 1, especially the lower end of the square anchor lip 1, so that paint on the surface of the steel casting at the lower end of the square anchor lip 1 is damaged, and even the surface of the steel casting of the square anchor lip 1 is scratched and indented, so that the service life of the square anchor lip 1 is influenced.

In the application, the lower extreme of the square anchor lip 1 that actually contacts with anchor 300 and anchor chain 200 is, this embodiment provides a square anchor lip, paste dress corrosion resistant plate 2 on the lower extreme of square anchor lip 1, not only improved the structural strength of square anchor lip 1, the bruise and the scratch of square anchor lip 1 have been reduced, simultaneously more because the stainless steel has outstanding corrosion resistance, can be fine protection square anchor lip 1, reduce the corrosion of square anchor lip 1, the life of square anchor lip 1 has been prolonged, can also reduce corrosion resistant plate 2's use simultaneously, save material, reduce simultaneously and paste the dress work load, reduce cost.

Optionally, the stainless steel plate 2 is attached to the peripheral anchor lip of the square anchor lip 1 to improve the structural strength of the whole square anchor lip 1.

Alternatively, the stainless steel plate 2 may be made of stainless steel of 304, 304L, 316, or the like, so as to improve the corrosion resistance of the square anchor lip 1 by utilizing the material characteristics thereof.

In order to connect the stainless steel plate 2 to the square anchor lip 1, the present embodiment provides a method for processing the square anchor lip, as shown in fig. 2-5, comprising the following steps:

s1, processing a first groove 21 on the edge of the stainless steel plate 2, and uniformly forming a plurality of plug welding holes 22 on the stainless steel plate 2;

s2, attaching the stainless steel plate 2 to the lower end of the square anchor lip 1;

s3, symmetrically welding the plug welding holes 22 outwards from the center of the stainless steel plate 2 in sequence to form plug welding seams 32;

and S4, welding the joint of the first groove 21 and the square anchor lip 1 to form a groove weld 31.

The plug welding connection can ensure the firm welding and the service life; a plurality of plug welding holes 22 are uniformly distributed on the stainless steel plate 2 and are symmetrically welded from the center in sequence, so that the stainless steel plate 2 is prevented from deforming in the welding process, and the attaching effect is improved; groove welding is carried out to ensure that the welding root is completely welded, so that the welding firmness and the service life can be further ensured; the first groove 21 is processed at the edge of the stainless steel plate 2, so that the attaching tightness of the stainless steel plate 2 and the square anchor lip 1 is improved, and the attaching effect is further improved; the processing method has the advantages of simple processing technology, reliable connection, low manufacturing cost and the like.

Optionally, the plug welding hole 22 is processed by a laser cutting machine or a plasma cutting machine, the thermal influence area is small in the processing process, the plug welding hole is not easy to deform, and the attaching degree of the stainless steel plate 2 and the square anchor lip 1 is improved; and the cutting is beautiful without subsequent treatment, thereby saving the process flow and improving the welding effect.

In order to improve the welding joint tightness and avoid the generation of cracks of the welding joint, the following measures can be adopted in the process.

The bevel angle is an important welding process factor that affects the shape of the bevel weld 31, the welding dilution ratio, and the shape of the fusion zone, and even affects the stability of the welding arc. Optionally, referring to fig. 3, the angle of the first bevel 21 is α, and α is 35 to 45 °, so as to ensure the welding effect of the edge of the stainless steel plate 2 for the square anchor lip 1 and save the amount of welding wires; preferably, α is 40 °.

In order to ensure the welding quality of the plug welding seam 32 during welding and enable the electric arc to penetrate into the plug welding hole 22 and the joint root of the square anchor lip 1 to be welded thoroughly, in this embodiment, with reference to fig. 3, the two ends of the plug welding hole 22 are provided with second grooves 221, so that the welding is firm and the service life is prolonged. Like the first bevel 21, optionally, the angle of the second bevel 221 is β, β being 15-20 °.

In order to reduce the welding deformation of the stainless steel plate 2, optionally, manual arc welding is used for welding, so that the uniformity and the attractiveness of the groove weld 31 and the plug weld 32 are ensured; further optionally, manual arc welding with two welders symmetrically welding is adopted; in this embodiment, the welding material used for welding is an E309 stainless steel welding wire or an E309L stainless steel welding wire, so as to obtain good mechanical properties.

Optionally, before step S2, the method further includes:

s11, bending the stainless steel plate 2 to the radian the same as that of the square anchor lip 1, so that the stainless steel plate 2 and the square anchor lip 1 can be tightly attached during mounting.

Optionally, before step S3, the method further includes:

and S21, removing paint or dirt on the square anchor lip 1, avoiding the paint or the dirt from influencing welding, and improving the welding connection effect.

Optionally, after step S4, the method further includes:

s41, polishing the plug welding seam 32 and the groove welding seam 31 between the stainless steel plate 2 and the square anchor lip 1, polishing by using a polishing machine, and polishing the plug welding seam 32 and the groove welding seam 31 until the stainless steel and the square anchor lip 1 are in smooth transition.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.