CN214391684U

CN214391684U - C-shaped sliding rail hot extrusion molding system

Info

Publication number: CN214391684U
Application number: CN202022108454.4U
Authority: CN
Inventors: 高正磊; 庞于思; 王连华; 韩恒力
Original assignee: Handan Xinxing Special Pipe Co ltd
Current assignee: Handan Xinxing Special Pipe Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-10-15
Anticipated expiration: 2030-09-23

Abstract

The utility model relates to a C type slide rail hot extrusion's system, including blank processing equipment, heating furnace, lubricating arrangement, heat extrusion machine, heat treatment furnace, straightener and scale and check out test set. The blank processing equipment, the heating furnace, the lubricating equipment, the hot extruding machine, the heat treatment furnace, the straightening machine and the sizing and inspection equipment are sequentially arranged, the blank processing equipment is communicated with the blank bin, and the sizing and inspection equipment is communicated with the finished product bin. The blank processing equipment comprises a lathe and a deep hole drilling machine. The hot extruder is a 63MN horizontal extruder, and the heating furnace is a ring furnace or a box-type electric furnace. The utility model discloses a rational arrangement forming system's equipment has optimized the production process, is favorable to improving product property ability and quality, reduction in production cost through production efficiency and product qualification rate.

Description

C-shaped sliding rail hot extrusion molding system

Technical Field

The utility model belongs to the technical field of hot extrusion forming technique and profile manufacturing equipment, a C type slide rail hot extrusion forming's system is related to.

Background

The steel is an essential important material for national construction and quartification realization, has wide application and various varieties, and is divided into square steel, round steel and C-shaped steel 8 according to different section shapes. The existing C-shaped steel is mainly manufactured into a C-shaped steel member through bending forming or forging forming, the manufactured C-shaped steel has low structural strength and poor performance, and the directly forged C-shaped steel has large material consumption and general mechanical property.

One of the main parts of the C-shaped slide rail and the mechanical transmission mechanism mainly plays a supporting role. The C-shaped slide rail has a complex structure and high carbide requirement, and the production of the rail steel is difficult to realize by utilizing the processes of cold rolling, hot rolling and the like of the conventional rail steel, so that the yield is low. At present, no report of the slide rail hot extrusion production process is found in China.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a C type slide rail hot extrusion molding's system, with the C type slide rail of hot extrusion's method production, guarantee the structure of product and the size of intermediate product, reduce carbide inhomogeneity through hot extrusion, improve product quality.

The technical scheme of the utility model is that: the C-shaped slide rail hot extrusion molding system comprises a blank processing device, a heating furnace, a lubricating device, a hot extrusion machine, a heat treatment furnace, a straightening machine and a sizing and inspection device. The blank processing equipment, the heating furnace, the lubricating equipment, the hot extruding machine, the heat treatment furnace, the straightening machine and the sizing and inspection equipment are sequentially arranged, the blank processing equipment is communicated with the blank bin, and the sizing and inspection equipment is communicated with the finished product bin. The blank processing equipment comprises a lathe and a deep hole drilling machine, and the heating furnace is an annular furnace or a box-type electric furnace.

The hot extruder is a 63MN horizontal extruder and comprises an extrusion cylinder and an extrusion die. The extrusion cylinder comprises an extrusion cylinder jacket, an extrusion cylinder lining and an extrusion cylinder lining, and the extrusion die comprises a die center support, a die holder, a die center pad and a die rear pad. The box-type electric furnace consists of a furnace base, an observation hole, a furnace door, a thermocouple, a furnace shell, an electric furnace wire, a refractory material, an insulating layer and a furnace frame.

The utility model discloses C type slide rail hot extrusion molding system is through the fashioned equipment of rational configuration, C type slide rail hot extrusion molding's production process has been optimized, produce C type slide rail with hot extrusion method, utilize hot extrusion technique to heat the solid bar that has processed to the predetermined temperature, use its extrusion of extrusion die, the structure of product and the size of intermediate product have been guaranteed, the carbide inhomogeneity has been reduced, be favorable to improving production efficiency and product qualification rate, improve product property ability and quality, and the production cost is reduced.

Drawings

FIG. 1 is a schematic flow chart of a C-shaped slide rail hot extrusion molding system;

FIG. 2 is a schematic view of the structure of a heat extruder;

FIG. 3 is a schematic view of the structure of the heating furnace;

FIG. 4 is a schematic view showing the structure of the leveler.

Wherein: 1-blank processing equipment, 2-heating furnace, 21-furnace base, 22-observation hole, 23-furnace door, 24-thermocouple, 25-furnace shell, 26-electric furnace wire, 27-refractory material, 28-heat preservation layer, 29-furnace frame, 3-lubricating equipment, 4-heat extruder, 5-heat treatment furnace, 6-straightener, 7-sizing and inspection equipment, 8-extrusion die, 9-extrusion cylinder, 10-die middle support, 11-die support, 12-die back cushion, 13-die middle cushion, 14-die base, 15-extrusion cylinder lining, 16-extrusion cylinder middle liner, 17-extrusion cylinder outer sleeve, 21-furnace base, 22-observation hole, 23-furnace door, 24-thermocouple, 25-furnace shell, 26-electric furnace wire, 27-refractory material, 28-heat preservation layer and 29-furnace frame.

Detailed Description

The present invention will be described in detail with reference to the following examples and drawings. The protection scope of the present invention is not limited to the embodiments, and those skilled in the art can make any changes within the scope defined by the claims.

The utility model discloses C type slide rail hot extrusion molding system is shown in figure 1, including blank processing equipment 1, heating furnace 2, moist equipment 3, heat extrusion machine 4, heat treatment furnace 5, straightener 6 and scale and check out test set 7. The blank processing equipment, the heating furnace, the lubricating equipment, the hot extruding machine, the heat treatment furnace, the straightening machine and the sizing and inspection equipment are sequentially arranged, the blank processing equipment is communicated with the blank bin, and the sizing and inspection equipment is communicated with the finished product bin. The hot extruder 4 was a 63MN horizontal extruder. As shown in fig. 2, the hot extrusion press includes a container 9 including a container mantle 17, a container liner 16, and a container liner 15, and an extrusion die 8 including a die center support 10, a die support 11, a die shoe 14, a die center pad 13, and a die rear pad 12. As shown in fig. 3, the heating furnace is a box-type electric furnace, and the box-type electric furnace is composed of a furnace base 21, an observation hole 22, a furnace door 23, a thermocouple 24, a furnace shell 25, an electric furnace wire 26, a refractory 27, an insulating layer 28, and a furnace frame 29. FIG. 4 shows a leveler 6. The blank processing equipment comprises a lathe and a deep hole drilling machine, and the heating furnace is an annular furnace or a box-type electric furnace. The other equipment is conventional production equipment.

The utility model discloses C type slide rail hot extrusion moulding's system, used material is: GCr15, specification of finished products: 146 × 170.6 × 116 × 96 × 900mm, and the process route is as follows: blank processing → blank heating → lubrication → preparation tool and die → hot extrusion → heat treatment → straightening → flaw detection → sizing → inspection → packaging and warehousing. The method comprises the following specific steps:

firstly, blank processing: and (4) sawing, lathing and polishing the outer surface of the forged polished blank round steel according to the process requirements. The process requirements are as follows: the outer surface of the machined and polished blank is smooth and free of defects, the roughness is less than or equal to 3.2 mu m, the cutting slope of the end surface after sawing is less than or equal to 5mm, the head part of the lathe-machined blank is chamfered, the external arc angle R20-25mm, the external diameter phi 305mm and the length 1000 mm.

Secondly, heating the blank: a segmented heating and heat preservation method is adopted, temperature measurement is based on the central temperature of the head of a blank, the temperature is firstly heated to 1050-1100 ℃, heat preservation is carried out for 1-2 minutes, the temperature is heated to 1150-1200 ℃, heat preservation is carried out for 1-2 minutes, the temperature is heated to 1200-1230 ℃, and the blank is rapidly discharged from a furnace.

Lubricating: rolling and coating glass powder on the outer surface of the blank for lubrication, wherein the type of the glass powder is 844-7; the lubrication between the workpiece and the extrusion die is lubricated by a glass mat, the glass mat is powder type A5.

Preparing an industrial mold: the extrusion die comprises a die cavity sleeve with an outer profile of a C-shaped slide rail, and a die support and a die middle support with a hole pattern which has the same shape as the C-shaped slide rail.

Carrying out hot extrusion: carrying out hot extrusion molding on the blank by adopting a 63MN horizontal extruder; extrusion parameters: the extrusion ratio is 6.9, the extrusion force is 22-32MN, and the extrusion speed is 120-.

Sixthly, heat treatment: annealing at 810 ℃ under the protective atmosphere.

Straightening: and straightening the heat-treated product to straightness required by the technical protocol.

Scaling: the product is cut to the length required by the technical protocol.

Testing the self-checking: and (5) inspecting the surface quality, the mechanical property and the physical and chemical properties of the C-shaped sliding rail. Wherein: the chemical composition test results are shown in table 1, the carbide nonuniformity is shown in table 2, the microstructure and decarburized layer depth test results are shown in table 3, and the hardness test results are shown in table 4.

TABLE 1 test results of chemical composition

TABLE 2 carbide inhomogeneities

Sample number	Net shape carbide (grade)	Band-shaped carbide (grade)	Liquated carbide (grade)
				1#	2.0	1.0	1.0
2#	2.0	1.0	1.0
				3#	2.0	1.0	1.0
4#	2.0	1.0	1.0
				5#	2.0	1.0	1.0

TABLE 3 microstructure and depth of decarburized layer

TABLE 4 hardness test results

Through inspection, the surface quality, the physical and chemical properties, the mechanical properties and other indexes of the produced C-shaped sliding rail all meet the requirements of technical specifications.

Claims

1. The utility model provides a C type slide rail hot extrusion's system which characterized in that: the system comprises a blank processing device (1), a heating furnace (2), a lubricating device (3), a heat extruding machine (4), a heat treatment furnace (5), a straightening machine (6) and a sizing and checking device (7); the blank processing equipment, the heating furnace, the lubricating equipment, the hot extrusion machine, the heat treatment furnace, the straightening machine and the sizing and inspection equipment are sequentially arranged; the blank processing equipment is communicated with the blank bin, and the sizing and inspection equipment is communicated with the finished product bin; the heat treatment furnace is a protective atmosphere heat treatment furnace; the blank processing equipment (1) comprises a lathe and a deep hole drilling machine, and the heating furnace (2) is an annular furnace or a box-type electric furnace.

2. The C-track hot extrusion molding system of claim 1, wherein: the hot extrusion machine (4) is a 63MN horizontal extrusion machine and comprises an extrusion cylinder (9) and an extrusion die (8), wherein the extrusion cylinder comprises an extrusion cylinder jacket (17), an extrusion cylinder middle liner (16) and an extrusion cylinder inner liner (15), and the extrusion die (8) comprises a die middle support (10), a die support (11), a die holder (14), a die middle pad (13) and a die rear pad (12).

3. The C-track hot extrusion molding system of claim 1, wherein: the box-type electric furnace consists of a furnace base (21), an observation hole (22), a furnace door (23), a thermocouple (24), a furnace shell (25), an electric furnace wire (26), a refractory material (27), an insulating layer (28) and a furnace frame (29).