JPS5855171A - Casting and working device - Google Patents

Abstract

PURPOSE:To control casting and working lines automatically and to produce uniform ingots in large quantities by incorporating a weighing machine for steel ingots, a dispensing device for molten metal, a controller for conveying speeds, and a scarfer into a series of lines. CONSTITUTION:Weights of unit steel ingots including tare weights are beforehand put and set in an arithmetic device 5. The mold 2 set in the casting part B of the lines is moved upward by a cylinder 3 for upward and vertical movement toward the charging port 8 for intermediate ladle 7. At this time, the weight of the tare of the mold is measured with a load cell 4, and is inputted to an arithmetic device 5, by which the weight is converted to a height position with respect to the ladle 7 of the mold 2 and is outputted to a cylinder 6. The stopper 9 of the ladle 7 is moved upward from the port 8 to start charging of the molten metal. Then, the cell 4 catches the change in the weight and moves downward gradually in the position of the mold 2'. When the prescribed weight is attained, the stopper 9 is moved downward to close the port 8. Then the cast mold 2' is unloaded on a conveying table 1, by which the mold is transferred to a rapping part C, whereby the ingot is removed. The removed ingot is sent for a scarfing part D for scarfing.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the construction of a transportation vehicle which is, for example, an annular body;
The invention relates to a device for automatically casting and processing a processing unit of a rolled product, etc., and the term "one lump" used in this invention is not limited to a cylindrical shape, but also includes square and elliptical shapes.

For example, a lump for an annular molding product is produced by casting a long cylindrical #)awt as shown in Section 2vIi by the bottom pouring method, and then cutting it into round pieces using a lathe or the like to form a steel billet for rolling. Although not shown in the drawings, a cheese ingot method is known in which the ladle is moved while the ladle is being moved while the melt is poured into cast lids arranged below.

However, since the W puffer ingot method involves cutting into rings, there are many parts that need to be cut off, such as the riser, injection pipe, and runner.
, since it may be cut after cooling, it is difficult to meet the mws.
In the cheese ingot method, the "high 1/diameter ratio" of the lump is 1.
0 or more, there are defects in the inside of the steel ingot and defective parts remain, and there are problems in terms of quality.In addition, quality buffs are observed, and furthermore, the casting time is long, making it unsuitable for mass casting.

The present invention solves the above-mentioned problems of the conventional method.

This invention was made for the purpose of providing an automatic casting processing apparatus that can quickly and mass-produce processing unit steel #l, which is directly rolled, using a twin system under automatic control, and more specifically, the processing unit - Measurement casting is carried out by measuring the required weight of the ingot (less than c) with a weighing machine, and using that weight as a reference, the required amount of molten metal is cut into the casting place and cast. The first purpose is to be able to achieve
The purpose of this is to provide a control device that reduces the moving speed so that the surface of the molten metal after pouring does not oscillate during transport, and to reduce the internal quality of the molten metal during transport. The fifth purpose is to maintain the smoothness of the 11th surface, and the fifth purpose is to automatically generate a rotating scarf using a change in the circumferential speed of a radial point of a piece of steel using a heat block finder device. In particular, it is possible to effectively improve the smoothness of the central segregated portion V**, and the fourth purpose is to process hot lump-like molds as a continuous process from 1st casting to 1st to 7th processing. −
The process is carried out quickly and sent to the next rolling process as a uniform piece with no unevenness in quality, resulting in rapid mass production.

The apparatus of the present invention will be described in detail below with reference to the illustrated embodiments.
* From the cut part (4) through the casting part (8) to the pre-placement part (
0) are arranged in a flat-rectangular endless loop as shown in the figure, and the cast steel ingot is placed in the next process, i.e. scarf processing, 1 m @ in a heating furnace ( ), followed by rolling (g), followed by a processing tin that branches through aS. Fig. 2 is a diagram showing casting and cutting of a lump by the conventional long ingot method.

5th WJ is a partially sectional front view of the main part of the casting section of the line, (1) is a conveyance table, and I is a casting section.
, God) is the cylinder for raising and lowering the iron part, (j)' is its rond, and ←) is the cylinder installed in the cylinder (j). It has the function of measuring the weight of the machine (2) and inputting it to the calculation controller (combiator). (5) is the calculation 1
111111 (combiator), which operates a stopper (°C) to open and close the spout of the intermediate ladle (γ) in response to the pre-casting weight input from the III holder (4). 1) gives an output to the hydraulic cylinder (6) that raises and lowers the vehicle.

- Attach the base end to the middle ladle (η) at the pouring port (8),
When the tip is cast in as shown in the diagram, the cast ail comes up)
This is an immersion nozzle inserted into the casting nozzle, and the tip of the nozzle is equipped with a circular cover (b) with an opening at the bottom, which serves to prevent splashing. 6W4, which is a coating material that covers the top surface of the molded steel to keep it warm, is a heat insulating material (or plate) that is added after casting.

■ is a speed control device that controls the conveyance speed of the element that conveys the lump after casting.It is a speed control device that controls the conveyance speed of the element that conveys the lump after casting. #Ii function 6- is a scarf F-chi in the scarf processing section (2), which is provided above and facing the IIi tooth extraction piece y, and is arranged in series in the radial direction of the slab 4. It has a large number of nozzle ports arranged in a row. +Shi lever torch-
can be operated online so that the nozzle #QOM' can be moved in the radial direction of the slab and also in the horizontal direction. (2) i[This is a drive roller for rotating one piece in a single pitch.

In the above embodiment apparatus, the weight of the unit steel ingot to be directly rolled, including the tare weight, is set in advance by putting it into the calculation device (i) indicated by S-. In order to perform casting, the prefix (2) located at casting II (1m) of the line is raised toward the spout (IS) of the intermediate ladle (TE) by the lifting cylinder (8). At this time, the weight of the trowel tare is measured by Docel (4) and inputted to the door device. The arithmetic device converts the human force value into a height position for the middle section 111 (7) of the caster m (to) and outputs it to the hydraulic cylinder (6). The hydraulic cylinder (・) is directly connected to the intermediate ladle (te).
Raise the inner stopper (9) 1i, raise its tip from the spout (8), and start pouring in the evening (2).

When the molten metal m (a) in the casting m Gradually lower the position of tsy.

Therefore, without changing the position of the hot water 1 shown in the figure, the capacity of the molten steel (III) gradually increases until it reaches a predetermined amount of molten steel (the amount required for a unit of kneaded lump). During this period, the stomach doll (4) continues to input weight changes to the calculation device (6), and when a predetermined weight is measured, the hydraulic cylinder (6) moves to the stopper (1).
1) is lowered to close the pouring port (8). The stopper may be controlled in multiple stages to improve cutting accuracy. In this way, a steel ingot with a unit weight of a prescribed steel ingot (!1 piece) is cast.

, the cast timw is lowered to the conveyor table (1) by the descent of the cylinder (8), and is then moved to the conveyor table (X) &- by the lowering of the cylinder (8).
It is transferred to the cutting section (0), where the cast slab is removed from the first caster, and sent to the next scarf processing section (0), where it is cut in the horizontal direction (it can also be cut in the vertical direction). ) Simultaneously, the driving part (9) is rotated once, and the torch facing it is scarfed in the radial direction. On the top surface of the molten steel (a), a molten metal cover II cover (2) is attached to the outside of the 8-tube cover that was previously installed at the tip of the nozzle body before casting, and after casting, the top surface of the molten metal is shown in the figure. Like < (
? ? ) is covered with a heat insulating agent to prevent the surface of the hot water from shaking during movement and to keep the hot water warm during transport. In addition, for transfer after casting, a speed control device is used to maintain the minimum transfer speed without rapid transfer.
It can be sent to the scarf processing (11cD) as a hot mass, and its internal quality is less likely to change and its surface smoothness can be maintained.

In addition, the scarf processing in the scarf processing section (b) is performed automatically by the on-twin system rather than by the conventional hands*-7, so it can be carried out quickly and effectively. Furthermore, since the casting method is based on the unit weight of the steel ingot mentioned above, there is no variation in the amount of casting compared to conventional techniques. Since this method is adopted, it is suitable for mass production and is effective in machining the surface quality of the slab.

(it)■ Immersion nozzle, material: molten steel 9: JI, inner diameter 4
゜φ Discharge hole: 2 horizontal holes
s45~oo o, as ~mujmOs201~01s ■Heat insulation agent (9ri usage amount e 4 x/T component = M・mu11
SjG~AjmOm40%-jliom 2G〇#l
4-I block unit weight 440rl, plastic R7 (4500φX28
51 GHI II Unit weight 14@M (Casting wheel, stand Il!3
0- Mild oo, 6o ~ [0.25 Kim 0.60 casting moderate 15 noodles/sw [F] Steel ingot size (height 157 diameter) 1.0 or less ■ Su J-7
The height of the solvent end (outer m1lK) is 10 m/m or more (10
++a/m is the minimum thickness) As is clear from the above example, the device of the present invention performs automatic casting without a riser, and the needle weight is determined based on the unit weight of the rolled unit steel ingot. Because it is cast, not only can a uniform and buff-free steel ingot be obtained automatically, but also the movement after casting is controlled with moderate movement while maintaining heat retention by the cover. Moderate scarf jl
The solvent is sent to the O construction, and the scarf toners, which are opposed in the radial direction while being rotated, effectively meet the solvent, especially in the central area. Therefore, conventional visual casting and l1
4Q: Casting can be done within a very short time, and a steel ingot with good precision and stable quality can be obtained, and the yield rate can be significantly improved. And we are looking forward to the remarkable results achieved through the process from casting to rolling. In addition, as shown in the inversion of the apparatus of the present invention, its quality is significant in that the ratio of 100% to 100% maintenance rate is Os.

[Brief explanation of the drawing]

Item III is a twin diagram of the device of the present invention, Figure 2 is an explanatory diagram of the conventional Kan die ingot method, and 5wt1 is -11 of the casting part.
111i enlarged view - (4) is the casting j1-nit part, (6) is the casting tlA, (4
(2) is the XJI-7m engineering department, (to) is the heating furnace, (the cup is the rolling department, (1) is the conveyor table, (1) is the
(1) is a casting leak, (Hata) is a cylinder for raising and lowering the mold, (4) is a gastrointestinal cell, (i) is a calculation device, (S) is a hydraulic cylinder,
(TE) is the intermediate ladle, (Jl) is the spout, (9) is the stopper, - is the immersion nozzle, (B) is the cylindrical cover, (TO) is the coating material on the hot water surface, (2) is the appropriate control The device, 2) is the torch for the scarf, is the driver, and the device 4 is the torch for the scarf.
(God) is a heat protectant ^

Claims (1)

[Claims] (1) A casting section equipped with a weighing machine that measures the weight of the steel ingot, and a molten metal cutting device that cuts out the required amount of molten metal in the casting mall in conjunction with the weighing machine's needle weight, and an Il that is continuous with it. A casting processing device characterized by a feed rate control device and a subsequent scarf processing device functioning as a series of control lines.