阅读说明：本技术 一种铅箔成形方法 (Lead foil forming method ) 是由 李艳峰 于 2021-01-28 设计创作，主要内容包括：本发明公开一种铅箔成形方法,包括以下步骤：(1)将铅块放置到熔融炉或者其他金属熔融装置内加热,使其熔融为液态；(2)将熔融后的液态金属转移到成形模具中,待金属液凝固后成形为铅板；(3)通过吊装工具将铅板吊装到连轧机组上；(4)启动连轧机组对铅板进行轧制,前五组轧机的轧制间隙相同,后续轧机的轧制间隙依次减小；(5)经最后一组轧机的辊缝出料形成铅箔。该铅箔成形方法,将铅块熔融后制备成具有一定厚度的铅板,方便后续的轧制成型,降低前组轧制机组的轧制难度；设置有多种规格的成形模具,根据不同铅箔尺寸要求,预制成形不同规格的铅板,提高轧制效率,保证成形效果。(The invention discloses a lead foil forming method, which comprises the following steps: (1) putting the lead block into a melting furnace or other metal melting devices for heating, so that the lead block is melted into liquid; (2) transferring the molten liquid metal into a forming die, and forming a lead plate after the molten metal is solidified; (3) hoisting the lead plate to a continuous rolling mill group by using a hoisting tool; (4) starting the continuous rolling mill group to roll the lead plate, wherein the rolling gaps of the front five groups of rolling mills are the same, and the rolling gaps of the subsequent rolling mills are reduced in sequence; (5) and discharging through the roll gap of the last group of rolling mills to form the lead foil. According to the lead foil forming method, the lead block is melted to prepare the lead plate with a certain thickness, so that the subsequent rolling forming is facilitated, and the rolling difficulty of a front group of rolling unit is reduced; the forming die with various specifications is arranged, lead plates with different specifications are prefabricated and formed according to the size requirements of different lead foils, the rolling efficiency is improved, and the forming effect is ensured.)

1. A method of forming a lead foil, comprising the steps of:

(1) putting the lead block into a melting furnace for heating, so that the lead block is melted into a liquid state;

(2) transferring the molten liquid metal into a forming die, and forming a lead plate after the molten metal is solidified;

(3) hoisting the lead plate to a continuous rolling mill group by using a hoisting tool;

(4) starting the continuous rolling mill group to roll the lead plate, wherein the rolling gaps of the front five groups of rolling mills are the same, and the rolling gaps of the subsequent rolling mills are reduced in sequence;

(5) and discharging through the roll gap of the last group of rolling mills to form the lead foil.

2. The lead foil forming method according to claim 1, wherein: and (3) the forming die in the step (2) is of a rectangular groove structure with a sealed bottom, and the forming die is divided into three specifications, namely a small die, a middle die and a large die according to different specifications of the lead foil to be formed.

3. The lead foil forming method according to claim 2, wherein: the size of the inner cavity of the groove of the small die is 1700mm in length, 1100 mm in width and 1350mm in height; the size of the cavity of the groove of the middle die is 2200mm in length, 1300mm in width and 280mm in height; the size of the cavity of the groove of the large die is 2200mm in length, 1600mm in width and 270mm in height.

4. The lead foil forming method according to claim 1, wherein: four sides of the inner cavity of the groove of the forming die are oblique sides, and the inclination of the oblique sides is 15 degrees.

5. The lead foil forming method according to claim 1, wherein: and (3) before the molten metal is solidified in the step (2), placing a steel L-shaped pin in the forming die, vertically inserting the L-shaped pin into the semi-solid lead plate, and exposing the top surface of the lead plate at the bent part of the L-shaped pin.

6. The lead foil forming method according to claim 5, wherein: and (3) after the lead plate is solidified and formed, hoisting the L-shaped pin by using a hoisting tool to drive the lead plate to be hoisted together.

Technical Field

The invention relates to the technical field of lead foil manufacturing and forming, in particular to a lead foil forming method.

Background

The existing lead foil processing is to directly place a lead block on a roller for rolling and forming, and has the problems of difficult early rolling, uneven forming texture and lower forming precision. The existing lead foil forming process cannot meet the relevant parameter requirements, and the method needs to be improved so as to overcome the defects.

Disclosure of Invention

The invention aims to provide a lead foil forming method, which aims to solve the problems in the prior art, can prepare lead blocks with different thicknesses and specifications according to production requirements, and can be integrally formed by continuous rolling, and the formed quality is uniform.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a lead foil forming method, which comprises the following steps:

(1) putting the lead block into a melting furnace for heating, so that the lead block is melted into a liquid state;

(2) transferring the molten liquid metal into a forming die, and forming a lead plate after the molten metal is solidified;

(3) hoisting the lead plate to a continuous rolling mill group by using a hoisting tool;

(4) starting the continuous rolling mill group to roll the lead plate, wherein the rolling gaps of the front five groups of rolling mills are the same, and the rolling gaps of the subsequent rolling mills are reduced in sequence;

(5) and discharging through the roll gap of the last group of rolling mills to form the lead foil.

Preferably, the forming mold in the step (2) is a rectangular groove structure with a sealed bottom, and the forming mold is divided into three specifications, namely a small mold, a middle mold and a large mold according to different specifications of the lead foil to be formed.

Preferably, the size of the inner cavity of the groove of the small die is 1700mm in length, 1100 mm in width and 1350mm in height; the size of the cavity of the groove of the middle die is 2200mm in length, 1300mm in width and 280mm in height; the size of the cavity of the groove of the large die is 2200mm in length, 1600mm in width and 270mm in height.

Preferably, four sides of the cavity of the groove of the forming die are all inclined edges, and the inclination of the inclined edges is 15 degrees.

Preferably, before the molten metal is solidified in the step (2), a steel L-shaped pin is placed in the forming mold, the L-shaped pin is vertically inserted into the semi-solid lead plate, and a bent part of the L-shaped pin exposes the top surface of the lead plate.

Preferably, in the step (3), after the lead plate is solidified and formed, the L-shaped pin is hoisted by the hoisting tool to drive the lead plate to be hoisted together.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the lead foil forming method, the lead block is melted and then prepared into the lead plate with a certain thickness, so that the subsequent rolling forming is facilitated, and the rolling difficulty of a front group of rolling units is reduced; the forming die with various specifications is arranged, lead plates with different specifications are prefabricated and formed according to the size requirements of different lead foils, the rolling efficiency is improved, and the forming effect is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a forming die.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

The invention aims to provide a lead foil forming method, which aims to solve the problems in the prior art, can prepare lead blocks with different thicknesses and specifications according to production requirements, and can be integrally formed by continuous rolling, and the formed quality is uniform.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1, the present embodiment provides a lead foil forming method, including the following steps:

(1) putting the lead block into a melting furnace or other metal melting devices for heating, so that the lead block is melted into liquid;

(2) transferring the molten liquid metal into a forming die, and forming a lead plate after the molten metal is solidified;

(3) hoisting the lead plate to a continuous rolling mill group by using a hoisting tool;

(4) starting the continuous rolling mill group to roll the lead plate, wherein the rolling gaps of the front five groups of rolling mills are the same, and the rolling gaps of the subsequent rolling mills are reduced in sequence;

(5) and discharging through the roll gap of the last group of rolling mills to form the lead foil.

The lead plate with a certain thickness is prepared after the lead block is melted, so that the subsequent rolling forming is facilitated, the rolling difficulty of a front group rolling unit is reduced, the prepared lead plate is hoisted and placed on a continuous rolling unit, the roll gaps of front five groups of rolling mills are adjusted to be the same, the lead plate is pre-rolled, the uniform texture of the lead plate is ensured, then the lead plate enters the subsequent rolling mill for forming rolling, and finally the lead foil meeting the processing requirement is obtained.

In this embodiment, the forming mold in step (2) is a rectangular groove structure with a sealed bottom, and the forming mold is divided into three specifications, i.e., a small mold, a medium mold and a large mold, according to the specification of the lead foil to be formed. The forming die with various specifications is arranged, lead plates with different specifications are prefabricated and formed according to the size requirements of different lead foils, the rolling efficiency is improved, and the forming effect is ensured.

Specifically, the size of the inner cavity of the groove of the small die is 1700mm in length, 1100 mm in width and 1350mm in height; the size of the inner cavity of the groove of the middle die is 2200mm in length, 1300mm in width and 280mm in height; the size of the cavity of the groove of the large die is 2200mm in length, 1600mm in width and 270mm in height. The size and number of the dies are not limited, and the size of the forming die can be adjusted according to the actual production and processing requirements.

In order to facilitate the demolding of the lead plate, in the embodiment, four sides of the cavity of the groove of the forming mold are all inclined edges, and the inclination of each inclined edge is 15 degrees.

In this embodiment, before the molten metal is solidified in step (2), an L-shaped pin made of steel is placed in the forming mold, and the L-shaped pin is vertically inserted into the semi-solid lead plate, and the bent portion of the L-shaped pin exposes the top surface of the lead plate. After the lead plate is solidified and formed, the L-shaped pin is hoisted through the hoisting tool to drive the lead plate to be hoisted together.

In addition, in order to increase the torque of a rolling mill in a continuous rolling mill set, the invention also improves the split-teeth box, the improved split-teeth box adopts the transmission combination of a spiral bevel gear and a bevel herringbone gear, the modulus of the spiral bevel gear is increased to 24m, the modulus of the bevel herringbone gear is increased to 16m, and a speed reducer is connected with an input shaft of the split-teeth box through a coupler; two output shafts of the gear box respectively drive an upper roller and a lower roller of the rolling mill to synchronously move.

The invention aims to provide a lead foil forming method, which can prepare lead blocks with different thicknesses and specifications according to production requirements, and can be integrally formed by continuous rolling, and the forming quality is uniform.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.