CN105396889A - Online extrusion molding method of high-strength hot-rolled forklift gantry profile steel - Google Patents
Online extrusion molding method of high-strength hot-rolled forklift gantry profile steel Download PDFInfo
- Publication number
- CN105396889A CN105396889A CN201510880092.1A CN201510880092A CN105396889A CN 105396889 A CN105396889 A CN 105396889A CN 201510880092 A CN201510880092 A CN 201510880092A CN 105396889 A CN105396889 A CN 105396889A
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- CN
- China
- Prior art keywords
- online
- rolled
- clamping fixture
- rolling
- online extrusion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
Abstract
The invention discloses an online extrusion molding method of high-strength hot-rolled forklift gantry profile steel, relates to a molding method in a profile steel rolling process, and mainly aims to solve the problems of surface defects and low product size precision of products rolled by a traditional rolling mill. Firstly, an online extrusion clamping fixture is manufactured, and is provided with a hole shape; a workpiece inlet of the hole shape takes the shape of a horn mouth dispersed peripherally; the online extrusion clamping fixture is locked on a roller way beam in front of a last universal mill outlet of a hot-rolled forklift gantry production line through a fixed bracket, and is connected with a guide plate; the hole shape of the online extrusion clamping fixture and a finished product hole shape of an universal mill are positioned on the same horizontal plane, and are aligned to the guide plate in the outlet; drawing equipment is arranged in front of the online extrusion clamping fixture; a rolled piece enters the online extrusion clamping fixture from the guide plate after final hole shape rolling of universal rolling; and the rolled piece molded by the online extrusion clamping fixture is pulled out through the drawing equipment. The method has the advantages of removing the rolling defects of the hot-rolled forklift gantry profile steel and guaranteeing the size precision.
Description
Technical field:
The present invention relates to the forming method in rolling of sectional iron process, specifically relate to the online extrusion process of a kind of high-strength hot-rolled forklift door frame.
Background technology:
Forklift door frame is the inside and outside door frame being applied to fork truck lifting position, and its stability directly has influence on the service life of door frame roller, pulley and the cylinder that hoists, so higher to the requirement of intensity, toughness and dimensional accuracy.In the last few years, China's fork truck development was very quick, and because the fork truck scope of application is very wide, the market demand of every field all constantly increases.The development of China's Forklift Industry and China's level of economic development and industrialization development degree are closely-related, and along with the develop rapidly of logistics and people use the enhancing of consciousness to fork truck, China's fork truck all has a great development in various aspects such as quality kinds.
Along with the continuous upgrading of Domestic Forklift product and the sustained and rapid development of fork truck industry, forklift door frame hot-rolled steel section demand sharply promotes.Along with the lifting of fork truck quality, user requires that gantry-shaped steel of forklift is constantly expanded to aspects such as high strength, high tenacity and high accuracy.Adopt the forklift door frame of hot-rolled steel section more and more extensive in China's Forklift Industry application, develop more and more faster.Current Domestic Forklift door frame shaped steel mainly contains three kinds, C type, H type and J type, and more than 80% has realized production domesticization, and small part adopts Plate Welding or import.Adopt domestic hot-rolled steel section to substitute import gantry-shaped steel and can significantly reduce fork truck manufacturing cost, promote the cost advantage of fork truck enterprise; Being used for alternative welding product can also avoid producing residual stress thus the performance of hoisting frame while reduction manufacturing cost, can shorten the manufacturing cycle, save a large amount of human and material resources.
In recent years, along with domestic steel industry competition is more and more fierce, increasing Metallurgical Enterprise also sets foot in the production of gantry-shaped steel of forklift, because gantry-shaped steel of forklift is wide in variety, consumption is few, quality requirement is high, belongs to the product of multi-varieties and small-batch.Current gantry-shaped steel of forklift is all use milling train direct rolling and forming, and product surface easily has the defect such as scuffing, roll mark, and product size precision is low, and surface roughness is low, of poor quality, can not reach the demand in market.
Summary of the invention:
Technical problem to be solved by this invention is to provide the online extrusion process of a kind of high-strength hot-rolled gantry-shaped steel of forklift, and the gantry-shaped steel of forklift product size precision of producing by the method is high, and surface roughness is high, and quality is good, can meet the demand in market.
Above-mentioned purpose is achieved in that first to make and extrudes mold online, online extruding mold offers the pass measure-alike with shape of product, the workpiece porch of pass is in the toroidal to surrounding diffusion, entering of rolled piece can be convenient to, be locked on the roller-way beam in front, hot rolling forklift door frame production line last one universal mill exit by extruding mold online by fixed support, and be connected with foreplate, the online pass of extruding mold and the last groove of universal mill are in same level, and align with the foreplate of outlet, drawing equipment is established in the front of online extruding mold, rolled piece is entered into by foreplate and extrudes mold online after last one groove rolling of omnipotent rolled piece, by drawing equipment by the rolled piece pull-out after online extruding mold is shaping.
Pass on online extruding mold can be H-shaped or C shape or J-shaped or Y shape.
Advantage of the present invention is: the rolling defect can removing hot rolling gantry-shaped steel of forklift to the online extruding of hot rolling gantry-shaped steel, as scratched, pressing against the defects such as wound, roll mark and rough surface, and can dimensional accuracy be ensured, not only can reduce the labour intensity of the subsequent fine person of giving sb. a hard time, the lumber recovery of steel can also be improved, obtain the gantry-shaped steel of forklift that precision is higher, meet the demand in market.
Accompanying drawing illustrates:
The structural representation of accompanying drawing 1 to be pass the be online extruding mold of Y shape, in figure, 1 is fixed support, and 2 is passes, and 3 is extrude mold online, and 4 is roller-way beams.
Detailed description of the invention:
First make and extrude mold online, online extruding mold offers the pass measure-alike with shape of product, the workpiece porch of pass is in the toroidal to surrounding diffusion, entering of rolled piece can be convenient to, be locked on the roller-way beam in front, hot rolling forklift door frame production line last one universal mill exit by extruding mold online by fixed support, and be connected with foreplate, the online pass of extruding mold and the last groove of universal mill are in same level, and align with the foreplate of outlet, drawing equipment is established in the front of online extruding mold; Rolled piece is entered into by foreplate and extrudes mold online after last one groove rolling of omnipotent rolled piece, by drawing equipment by the rolled piece pull-out after online extruding mold is shaping.
Claims (1)
1. the online extrusion process of high-strength hot-rolled gantry-shaped steel of forklift, it is characterized in that: first make and extrude mold online, online extruding mold offers the pass measure-alike with shape of product, the workpiece porch of pass is in the toroidal to surrounding diffusion, be locked on the roller-way beam in front, hot rolling forklift door frame production line last one universal mill exit by extruding mold online by fixed support, and be connected with foreplate, the online pass of extruding mold and the last groove of universal mill are in same level, and align with the foreplate of outlet, drawing equipment is established in the front of online extruding mold, rolled piece is entered into by foreplate and extrudes mold online after last one groove rolling of omnipotent rolled piece, by drawing equipment by the rolled piece pull-out after online extruding mold is shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880092.1A CN105396889A (en) | 2015-12-06 | 2015-12-06 | Online extrusion molding method of high-strength hot-rolled forklift gantry profile steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880092.1A CN105396889A (en) | 2015-12-06 | 2015-12-06 | Online extrusion molding method of high-strength hot-rolled forklift gantry profile steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105396889A true CN105396889A (en) | 2016-03-16 |
Family
ID=55462830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510880092.1A Pending CN105396889A (en) | 2015-12-06 | 2015-12-06 | Online extrusion molding method of high-strength hot-rolled forklift gantry profile steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105396889A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2584955A1 (en) * | 1985-01-08 | 1987-01-23 | Vaujours Ste Metallurg | Method for manufacturing a drawing die made from tungsten carbide, intended for drawing steel sections, of curvilinear geometry in the form of a V |
| JPH10216826A (en) * | 1997-02-06 | 1998-08-18 | Nkk Corp | Manufacture of t-shape steel |
| CN1504277A (en) * | 2002-12-02 | 2004-06-16 | 李宝安 | Process for rolling H steel using trio mill and heat rectification machine |
| CN101108392A (en) * | 2006-07-18 | 2008-01-23 | 偃师市荣泰金属制品有限公司 | Forklift truck transverse beam section rolling technique |
| CN101386034A (en) * | 2008-09-01 | 2009-03-18 | 宁波力达物流设备有限公司 | Production method of high precision profile steel for fork |
-
2015
- 2015-12-06 CN CN201510880092.1A patent/CN105396889A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2584955A1 (en) * | 1985-01-08 | 1987-01-23 | Vaujours Ste Metallurg | Method for manufacturing a drawing die made from tungsten carbide, intended for drawing steel sections, of curvilinear geometry in the form of a V |
| JPH10216826A (en) * | 1997-02-06 | 1998-08-18 | Nkk Corp | Manufacture of t-shape steel |
| CN1504277A (en) * | 2002-12-02 | 2004-06-16 | 李宝安 | Process for rolling H steel using trio mill and heat rectification machine |
| CN101108392A (en) * | 2006-07-18 | 2008-01-23 | 偃师市荣泰金属制品有限公司 | Forklift truck transverse beam section rolling technique |
| CN101386034A (en) * | 2008-09-01 | 2009-03-18 | 宁波力达物流设备有限公司 | Production method of high precision profile steel for fork |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |