阅读说明：本技术 一种钢段轧机用耐磨复合下导板 (Wear-resistant composite lower guide plate for steel section rolling mill ) 是由 吴志勇 陈生兵 于 2020-05-09 设计创作，主要内容包括：本发明涉及钢球生产设备技术领域,具体为一种钢段轧机用耐磨复合下导板,包括基板和耐磨合金块,所述基板上开设有安装孔位,所述耐磨合金块采用复合耐磨合金铸造,耐磨合金块的硬度能够达到HRC70以上,其耐磨寿命是常规下导板寿命的3-4倍；使用时下导板维修频次大幅减少,对设备起到很好的保护作用,同时大幅的减少维修,也大幅减少了工人恶劣工况维修的频次；可直接降低企业生产成本,同时还提升了设备的有效工作时间,大量减少维修人员及维修频次,使下导板维修管理成本大幅下降,为企业提升了经济效益；在耐磨合金块磨损严重而无法使用时,能够实现快速的安装,更换非常方便。(The invention relates to the technical field of steel ball production equipment, in particular to a wear-resistant composite lower guide plate for a steel section rolling mill, which comprises a base plate and a wear-resistant alloy block, wherein the base plate is provided with a mounting hole site, the wear-resistant alloy block is cast by adopting composite wear-resistant alloy, the hardness of the wear-resistant alloy block can reach more than HRC70, and the wear-resistant service life of the wear-resistant alloy block is 3-4 times that of the conventional lower guide plate; when the lower guide plate is used, the maintenance frequency of the lower guide plate is greatly reduced, the equipment is well protected, the maintenance is greatly reduced, and the maintenance frequency of workers under severe working conditions is also greatly reduced; the production cost of an enterprise can be directly reduced, the effective working time of equipment is prolonged, and a large number of maintenance personnel and maintenance frequency are reduced, so that the maintenance and management cost of the lower guide plate is greatly reduced, and the economic benefit of the enterprise is improved; when the wear-resistant alloy block is seriously worn and cannot be used, the quick installation can be realized, and the replacement is very convenient.)

1. The utility model provides a steel section rolling mill is with wear-resisting compound bottom guide, its characterized in that, includes base plate and wear-resisting alloy piece, the installation hole site has been seted up on the base plate, wear-resisting alloy piece adopts compound wear-resisting alloy casting, and the manufacturing composition of wear-resisting alloy piece includes carbon: 2.8-3.3 parts; chromium: 14-17 parts; molybdenum: 1.0-2.0 parts; manganese: 0.5-1.5 parts; silicon: 0.5-1.5 parts; nickel: 0-5.0 parts; copper: 0.2-0.5 part; boron: 0.1-0.2 part of wear-resistant alloy block, wherein the wear-resistant alloy block and the substrate are fixed by composite welding; wherein the content of the first and second substances,

the base plate includes base member and activity fixture block, activity fixture block and wear-resisting alloy piece hybrid welding, the activity fixture block is L type structure, has seted up a plurality of recesses on the lateral wall of activity fixture block, sliding connection has a gag lever post in the recess, is connected through reset spring between the lateral wall of a gag lever post and recess, and a gag lever post adopts accessible magnet absorbent metal material to make, and the vertical fixed No. two gag lever posts that are provided with of lower extreme of activity fixture block, the up end setting of base member is the structure that corresponds with the activity fixture block, sets up a slot that corresponds with a gag lever post on the lateral wall of base member, sets up No. two slots that correspond with No. two gag lever posts on the lateral wall of base member.

2. The wear-resistant composite lower guide plate for the steel section rolling mill as claimed in claim 1, wherein: the top of the base plate is transversely provided with a welding plate, and a T-shaped structure is formed between the welding plate and the base plate.

3. The wear-resistant composite lower guide plate for the steel section rolling mill as claimed in claim 2, wherein: the production process of the wear-resistant alloy block comprises the following steps:

s1: manufacturing a sand mold by using a jet molding machine;

s2: melting carbon, chromium, molybdenum, manganese, silicon, nickel, copper and boron materials by using a medium-frequency induction furnace to obtain a liquid alloy;

s3: pouring the liquid alloy into a mold to obtain a blank;

s4: polishing the surface of the blank to obtain a semi-finished product;

s5: and quenching and tempering the semi-finished product to obtain the final high-hardness wear-resistant alloy block.

4. The wear-resistant composite lower guide plate for the steel section rolling mill according to claim 3, characterized in that: the vacuum welding process between the wear-resistant alloy block and the movable clamping block comprises the following steps:

s1: casting a wear-resistant alloy block;

s2: processing a reference surface of the wear-resistant alloy block;

s3: processing a movable clamping block;

s4: butting the wear-resistant alloy block with the movable fixture block;

s5: vacuum welding;

s6: heat treatment of the wear-resistant alloy block;

s7: and (5) carrying out surface treatment on the wear-resistant alloy block and warehousing.

Technical Field

The invention relates to the technical field of steel ball production equipment, in particular to a wear-resistant composite lower guide plate for a steel section rolling mill.

Background

The steel section rolling mill is an oblique rolling mill for producing steel balls. The skew rolling equipment is mainly composed of two rollers which are not parallel but cross each other and work by rotating around their axes in the same direction. The principle is that the rolling piece is driven to rotate and advance by the contact friction force of the roller and the rolling piece. This rolling is also called helical rolling. In order to ensure the rolling precision, the roller is also provided with an axial adjusting mechanism. An upper guide plate and a lower guide plate are arranged between the two rollers. The upper guide plate is fixed on a support of the upper cross beam, and the adjustment of the upper guide plate is manually completed by using a spiral pressing mechanism. The upper guide plate can also adjust the horizontal plane by 4 screws. The lower guide plate is fixed on the base and is fixed by a dovetail groove and a compression bolt, and the height position is adjusted by a base plate.

The lower guide plate is an important easily-worn part in the steel ball production process, and the service life of the lower guide plate directly influences the operation efficiency of equipment and the production benefit of enterprises. Particularly, the current requirements of rolled steel balls on the accelerated replacement of cast steel balls are met, and the product performance advantage and the environmental protection advantage of the rolled steel balls are more and more obvious. At present, most guide plates used by steel ball rolling enterprises adopt a build-up welding mode, and have short service life and poor performance consistency.

Disclosure of Invention

In order to solve the problems, the invention provides a composite wear-resistant impact-resistant alloy lining plate capable of prolonging the service life.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

the invention provides a wear-resistant composite lower guide plate for a steel section rolling mill, which comprises a base plate and a wear-resistant alloy block, wherein the base plate is provided with a mounting hole site, the wear-resistant alloy block is cast by adopting composite wear-resistant alloy, and the wear-resistant alloy block comprises the following manufacturing components: 2.8-3.3 parts; chromium: 14-17 parts; molybdenum: 1.0-2.0 parts; manganese: 0.5-1.5 parts; silicon: 0.5-1.5 parts; nickel: 0-5.0 parts; copper: 0.2-0.5 part; boron: 0.1-0.2 part of wear-resistant alloy block, wherein the wear-resistant alloy block and the substrate are fixed by composite welding; wherein the content of the first and second substances,

the base plate includes base member and activity fixture block, activity fixture block and wear-resisting alloy piece hybrid welding, the activity fixture block is L type structure, has seted up a plurality of recesses on the lateral wall of activity fixture block, sliding connection has a gag lever post in the recess, is connected through reset spring between the lateral wall of a gag lever post and recess, and a gag lever post adopts accessible magnet absorbent metal material to make, and the vertical fixed No. two gag lever posts that are provided with of lower extreme of activity fixture block, the up end setting of base member is the structure that corresponds with the activity fixture block, sets up a slot that corresponds with a gag lever post on the lateral wall of base member, sets up No. two slots that correspond with No. two gag lever posts on the lateral wall of base member.

Preferably, the top of the substrate is transversely provided with a welding plate, and a T-shaped structure is formed between the welding plate and the substrate.

Preferably, the production process of the wear-resistant alloy block comprises the following steps:

s1: manufacturing a sand mold by using a jet molding machine;

s2: melting carbon, chromium, molybdenum, manganese, silicon, nickel, copper and boron materials by using a medium-frequency induction furnace to obtain a liquid alloy;

s3: pouring the liquid alloy into a mold to obtain a blank;

s4: polishing the surface of the blank to obtain a semi-finished product;

s5: and quenching and tempering the semi-finished product to obtain the final high-hardness wear-resistant alloy block.

Preferably, the vacuum welding process between the wear-resistant alloy block and the movable clamping block comprises the following steps:

s1: casting a wear-resistant alloy block;

s2: processing a reference surface of the wear-resistant alloy block;

s3: processing a movable clamping block;

s4: butting the wear-resistant alloy block with the movable fixture block;

s5: vacuum welding;

s6: heat treatment of the wear-resistant alloy block;

s7: and (5) carrying out surface treatment on the wear-resistant alloy block and warehousing.

By adopting the technical scheme, the invention has the beneficial effects that:

according to the wear-resistant composite lower guide plate for the steel section rolling mill, the hardness of the wear-resistant alloy block manufactured by the components and the process can reach more than HRC70, and the wear-resistant service life of the wear-resistant composite lower guide plate is 3-4 times that of a conventional lower guide plate; when the lower guide plate is used, the maintenance frequency of the lower guide plate is greatly reduced, the equipment is well protected, the maintenance is greatly reduced, and the maintenance frequency of workers under severe working conditions is also greatly reduced; the production cost of an enterprise can be directly reduced, the effective working time of equipment is prolonged, and a large number of maintenance personnel and maintenance frequency are reduced, so that the maintenance and management cost of the lower guide plate is greatly reduced, and the economic benefit of the enterprise is improved; when the wear-resistant alloy block is seriously worn and cannot be used, the quick installation can be realized, and the replacement is very convenient.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 4 is a partially enlarged view of fig. 3 at B.

In the figure: the wear-resistant alloy plate comprises a base plate 100, a base body 110, a first slot 111, a second slot 112, a movable clamping block 120, a groove 121, a first limiting rod 122, a return spring 123, a second limiting rod 124, a wear-resistant alloy block 200, a mounting hole position 300 and a welding plate 400.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent 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.

Referring to fig. 1-4, the present invention provides a technical solution:

the invention provides a wear-resistant composite lower guide plate for a steel section rolling mill, which comprises a base plate 100 and a wear-resistant alloy block 200, wherein a mounting hole position 300 is formed in the base plate 100, the wear-resistant alloy block 200 is cast by adopting a composite wear-resistant alloy, the wear-resistant alloy block 200 is manufactured by using 2.8-3.3 parts of carbon, 14-17 parts of chromium, 1.0-2.0 parts of molybdenum, 0.5-1.5 parts of manganese, 0.5-1.5 parts of silicon, 0-5.0 parts of nickel, 0.2-0.5 parts of copper and 0.1-0.2 parts of boron, the wear-resistant alloy block 200 and the base plate 100 are fixed by composite welding, a welding plate 400 is transversely arranged at the top of the base plate 100, a T-shaped structure is formed between the welding plate 400 and the base plate 100, a welding surface can be increased, the welding effect is improved, the base plate 100 comprises a base body 110 and a movable clamping block 120, the movable clamping block 120 and the wear-resistant alloy block 200 are welded with the wear-resistant alloy block 120, a clamping rod 120 is arranged in a L type movable clamping block 120 structure, a clamping rod 120 is arranged on the base body, a clamping rod 120 is capable of a clamping rod 120, a clamping rod 120 is arranged in a clamping groove 122, a clamping rod 120 is arranged on the base body, a clamping rod 120 is arranged on the base body, a clamping rod 120 is arranged on the base body, a clamping rod 120, a clamping rod is arranged on the base body, a clamping rod is arranged on the clamping rod, a clamping rod.

As an embodiment of the present invention, the production process of the wear-resistant alloy block 200 includes the following steps:

s1: manufacturing a sand mold by using a jet molding machine;

s2: melting carbon, chromium, molybdenum, manganese, silicon, nickel, copper and boron materials by using a medium-frequency induction furnace to obtain a liquid alloy;

s3: pouring the liquid alloy into a mold to obtain a blank;

s4: polishing the surface of the blank to obtain a semi-finished product;

s5: and quenching and tempering the semi-finished product to obtain the final high-hardness wear-resistant alloy block 200.

As an embodiment of the present invention, the vacuum welding process between the wear-resistant alloy block 200 and the movable fixture block 120 includes the following steps:

s1: casting the wear-resistant alloy block 200;

s2: processing the reference surface of the wear-resistant alloy block 200;

s3: processing the movable clamping block 120;

s4: the abrasion-resistant alloy block 200 is butted with the movable clamping block 120;

s5: vacuum welding;

s6: heat treatment of the wear-resistant alloy block 200;

s7: and (4) performing surface treatment on the wear-resistant alloy block 200 and warehousing.

The hardness of the wear-resistant alloy block 200 manufactured by the components and the process can reach more than HRC70, and the wear-resistant service life of the wear-resistant alloy block is 3-4 times that of a conventional lower guide plate; when the lower guide plate is used, the maintenance frequency of the lower guide plate is greatly reduced, the equipment is well protected, the maintenance is greatly reduced, and the maintenance frequency of workers under severe working conditions is also greatly reduced; the production cost of enterprises can be directly reduced, the effective working time of equipment is prolonged, maintenance personnel and maintenance frequency are greatly reduced, the maintenance and management cost of the lower guide plate is greatly reduced, and the economic benefit of the enterprises is improved.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.