CN1147373C - Guide plate for rolling steel and its manufacture method - Google Patents
Guide plate for rolling steel and its manufacture methodInfo
- Publication number
- CN1147373C CN1147373C CNB011152338A CN01115233A CN1147373C CN 1147373 C CN1147373 C CN 1147373C CN B011152338 A CNB011152338 A CN B011152338A CN 01115233 A CN01115233 A CN 01115233A CN 1147373 C CN1147373 C CN 1147373C
- Authority
- CN
- China
- Prior art keywords
- guide plate
- alloy
- metal
- iron
- steel
- Prior art date
- 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.)
- Expired - Fee Related
Links
Abstract
The present invention relates to a position guiding plate for steel rolling. The present invention adopts metals or alloys and ceramic granules to manufacture granule reinforced metal matrix composites, the granularity is controlled between 20 to 200 meshes, and the ratio between the metals or the alloys and the ceramics is from 1: 1 to 1: 5. The manufacturing method is that after the metals or the alloys and the ceramics are crushed, sieved and mixed, water glass is added. After dried and hardened, the mixtures are laid at the position where in a mold of the position guiding plate in the process of steel rolling and a wire are directly contacted. After drying, molten metal (magnesium iron or low chromium cast iron) is cast to cool. Compared with the traditional gray iron, magnesium iron and 28Cr high chromium cast iron, the present invention has the advantages that the abrasion resistance is improved by 4 to 6 times, the cost is only increased by 50%, and the consumption of the position guiding plate for steel rolling can be reduced greatly.
Description
One, affiliated technical field
The present invention relates to a kind of steel section bar, specifically a kind of preparation method of guide plate for rolling steel.
Two, background technology
Guide plate is steel section bar, a wire rod required auxiliary in the operation of rolling, and it is in the place ahead of roll, and to the effect that wire rod plays playback, sets upright, its effect is very big to the wire quality influence.The high temperature wire rod is at a high speed by guide plate the time, and thermal stresses and the oxygenizement that high temperature causes should be stood in the guide plate part, also will stand the abrasive action that high-speed slide causes, working conditions is very abominable, causes consumption very big.Wherein major reason be exactly previously used guide plate all be that single material makes, as 15Cr or 28Cr rich chromium cast iron, gray iron, magnesium iron etc.Single material is selected often to attend to one thing and lose sight of another, and just must reduce hardness if looked after high-temperature oxidation resistance, will sacrifice resistance to abrasion like this; And look after its hardness, and then thermal fatigue resistance is just poor, and this is the problem that single-material exists.
Three, summary of the invention
The objective of the invention is to overcome the shortcoming of present employed guide plate for rolling steel, a kind of preparation method of the guide plate for rolling steel that antioxidant property and thermal fatigue resistance are good under hot conditions is provided.
The technical scheme that the present invention takes is that the preparation method of guide plate for rolling steel for guide plate part easy to wear, adopts ceramic particle and the oxidation-resistance and the good metal or alloy preparation of thermal fatigue resistance of hardness height, good stability, may further comprise the steps:
A. metal or alloy (metal is high temperature steel or iron filings, and alloy is a high carbon ferro-chrome) is pulverized, sieved, its granularity is controlled between 20～200 orders;
B. add pottery (aluminum oxide or silicon carbide or the wolfram varbide) particle of one-size in above-mentioned metal or alloy particle, its weight ratio is: metal or alloy: pottery=1: 1～1: 5;
C. the matrix material mixture behind mixing adds 0.5～2% water glass mixing of gross weight;
The position that directly contacts with wire rod during d. with the steel rolling of above-mentioned mixed material-paving in the guide plate casting mold, thickness is 3～8 millimeters;
E. made it sclerosis in 2～3 minutes with the blowtorch oven dry;
F. mould assembling cast liquid metal cools off in casting mold.
The present invention is because to have adopted the ceramic particle of hardness height, good stability be wild phase, the metal or alloy that oxidation-resistance and thermal fatigue resistance are good is compound to be made, at the local particles reiforced metal-base composition that forms of guide plate easy to wear, can obtain the excellent comprehensive performance, greatly improve the work-ing life of guide plate.
Four, embodiment
The present invention will be described in detail below in conjunction with embodiment.
After high temperature steel or iron filings and high carbon ferro-chrome were pulverized, sieve, its granularity was with 20～60 orders, 60～100 orders, 100～150 orders, the grouping of 150～200 orders, with aluminum oxide or silicon carbide or wolfram varbide also by above-mentioned granularity grouping.Table 1 has provided proportioning example and wear resistance contrast.
Table 1 proportioning example and wear resistance contrast
| Sequence number | Particle (order) | Material (/) | Weight ratio (%) | Compare wear resistance (doubly) with gray iron | Compare wear resistance (doubly) with magnesium iron | Compare wear resistance (doubly) with 28Cr |
| 1 | 20～60 | High temperature steel/aluminum oxide | 1/2 | 8.1 | 7.5 | 3.8 |
| 2 | 60～100 | Iron filings/magnetization silicon | 1/3 | 8.7 | 7.2 | 3.2 |
| 3 | 100～150 | High temperature steel/aluminum oxide | 1/2 | 11.5 | 8.3 | 4.6 |
| 4 | 100～150 | High carbon ferro-chrome/wolfram varbide | 1/1.5 | 9.6 | 7.4 | 3.6 |
| 5 | 150～200 | High carbon ferro-chrome/aluminum oxide | 1/1 | 10.7 | 8.0 | 3.8 |
| 6 | 150～200 | High carbon ferro-chrome/carborundum | 1/1.5 | 8.2 | 6.6 | 3.0 |
| 7 | 150～200 | Iron filings/aluminum oxide | 1/4 | 11.3 | 8.5 | 4.8 |
| 8 | 150～200 | High carbon ferro-chrome/silicon carbide | 1/5 | 11.6 | 8.8 | 4.9 |
Embodiment 1: get 20～60 order particulate high temperature steel and alumina materials, its weight ratio is 1: 2, mix the back according to making method of the present invention, the guide plate for rolling steel of making, warp compares with the guide plate that gray iron, magnesium iron and 28Cr high chromium cast iron material are made, and its wear resistance is respectively their 8.1 times, 7.5 and 3.8 times.
Embodiment 2: get 60～100 order particulate iron filings and carbofrax materials, its weight ratio is 1: 3, mix the back according to making method of the present invention, the guide plate for rolling steel of making, warp compares with the guide plate that gray iron, magnesium iron and 28Cr high chromium cast iron material are made, and its wear resistance is respectively their 8.7 times, 7.2 and 3.2 times.
Embodiment 3: get 100～150 order particulate high temperature steel and alumina materials, its weight ratio is 1: 2, mix the back according to making method of the present invention, the guide plate for rolling steel of making, warp compares with the guide plate that gray iron, magnesium iron and 28Cr high chromium cast iron material are made, and its wear resistance is respectively their 11.5 times, 8.3 and 4.6 times.
Embodiment 4: get 100～150 order particulate high carbon ferro-chrome and tungsten carbide materials, its weight ratio is 1: 1.5, mix the back according to making method of the present invention, the guide plate for rolling steel of making, warp compares with the guide plate that gray iron, magnesium iron and 28Cr high chromium cast iron material are made, and its wear resistance is respectively their 9.6 times, 7.4 and 3.6 times.
Embodiment 5: get 150～200 order particulate high carbon ferro-chrome and alumina materials, its weight ratio is 1: 1, mix the back according to making method of the present invention, the guide plate for rolling steel of making, warp compares with the guide plate that gray iron, magnesium iron and 28Cr high chromium cast iron material are made, and its wear resistance is respectively their 10.7 times, 8.0 and 3.8 times.
Embodiment 6: get 150～200 order particulate high carbon ferro-chrome and carbofrax materials, its weight ratio is 1: 1.5, mix the back according to making method of the present invention, the guide plate for rolling steel of making, warp compares with the guide plate that gray iron, magnesium iron and 28Cr high chromium cast iron material are made, and its wear resistance is respectively their 8.2 times, 6.6 and 3.0 times.
Embodiment 7: get 150～200 order particulate iron filings and alumina materials, its weight ratio is 1: 4, mix the back according to making method of the present invention, the guide plate for rolling steel of making, warp compares with the guide plate that gray iron, magnesium iron and 28Cr high chromium cast iron material are made, and its wear resistance is respectively their 11.3 times, 8.5 and 4.8 times.
Embodiment 8: get 150～200 order particulate high carbon ferro-chrome and carbofrax materials, its weight ratio is 1: 5, mix the back according to making method of the present invention, the guide plate for rolling steel of making, warp compares with the guide plate that gray iron, magnesium iron and 28Cr high chromium cast iron material are made, and its wear resistance is respectively their 11.6 times, 8.8 and 4.9 times.
Adopt the best 28Cr rich chromium cast iron of the present invention guide plate for rolling steel of making and the wear resistance that is used as guide plate at present to carry out the high temperature wear contrast experiment, its wear resistance is 3.2～4.9 times of rich chromium cast iron, and production cost only increases about 50%.
Claims (1)
1. the making method of a guide plate for rolling steel, for guide plate part easy to wear, good metal or alloy prepares guide plate to adopt the ceramic particle of hardness height, good stability and oxidation-resistance and thermal fatigue resistance, it is characterized in that, may further comprise the steps:
A. metal or alloy is pulverized, sieved, its granularity is controlled between 20～200 orders;
Above-mentioned metal is high temperature steel or iron filings, and alloy is a high carbon ferro-chrome;
B. add the ceramic particle of one-size in above-mentioned metal or alloy particle, its weight ratio is a metal or alloy: pottery=1: 1～1: 5;
Above-mentioned ceramic particle is chromic oxide or silicon carbide or wolfram varbide;
C. 0.5～2% the water glass mixing that adds gross weight in the matrix material mixture behind mixing;
The position that directly contacts with wire rod when d. above-mentioned mixed matrix material being laid on the steel rolling of guide plate casting mold, thickness is 3～8 millimeters;
E. made it sclerosis in 2～3 minutes with the blowtorch oven dry;
F. mould assembling cast liquid metal cools off in casting mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011152338A CN1147373C (en) | 2001-04-28 | 2001-04-28 | Guide plate for rolling steel and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011152338A CN1147373C (en) | 2001-04-28 | 2001-04-28 | Guide plate for rolling steel and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1320494A CN1320494A (en) | 2001-11-07 |
| CN1147373C true CN1147373C (en) | 2004-04-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011152338A Expired - Fee Related CN1147373C (en) | 2001-04-28 | 2001-04-28 | Guide plate for rolling steel and its manufacture method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1147373C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898238B (en) * | 2010-07-23 | 2012-03-28 | 西安交通大学 | Ceramic particle reinforced composite wear-resistant part and preparation method thereof |
| CN101898239B (en) * | 2010-07-23 | 2012-07-04 | 西安交通大学 | Method for preparing ceramic particle reinforcement of composite wear-resistant material |
| CN103056342B (en) * | 2013-01-28 | 2015-03-25 | 新兴铸管股份有限公司 | Production method of abrasion-resistant guide plate for perforating stainless steel billet |
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2001
- 2001-04-28 CN CNB011152338A patent/CN1147373C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1320494A (en) | 2001-11-07 |
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Granted publication date: 20040428 |