CN110899334A - Hollow anchor rod processing method - Google Patents
Hollow anchor rod processing method Download PDFInfo
- Publication number
- CN110899334A CN110899334A CN201911248074.6A CN201911248074A CN110899334A CN 110899334 A CN110899334 A CN 110899334A CN 201911248074 A CN201911248074 A CN 201911248074A CN 110899334 A CN110899334 A CN 110899334A
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- round steel
- hollow anchor
- hot
- rolled
- 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.)
- Withdrawn
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 238000005507 spraying Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 230000006698 induction Effects 0.000 claims abstract description 10
- 238000004321 preservation Methods 0.000 claims abstract description 8
- 238000005098 hot rolling Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 241001449342 Chlorocrambe hastata Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention provides a method for processing a hollow anchor rod, wherein the materials and devices used for processing the hollow anchor rod comprise: the processing method of the hollow anchor rod comprises the following steps of hot-rolling seamless round steel, a superaudio induction heater, a perforating device, a rolling device, a spraying device and a heat treatment device, wherein the processing method of the hollow anchor rod comprises the following steps: putting the hot-rolled seamless round steel into a superaudio induction heater for heating, then further heating, putting into a perforating device for perforating treatment, then carrying out heat preservation treatment, and cooling after the heat preservation treatment; after cooling, putting the perforated hot-rolled round steel into a rolling device for deformation treatment, and rolling to form a thread shape; after rolling, sending the rolled round steel into a spraying device for continuous spraying, and ensuring that the punched hot rolled round steel is uniformly sprayed; and finally, putting the perforated hot-rolled round steel into a heat treatment device for heat treatment to obtain a finished product. The hollow anchor rod manufactured by the invention has lower cost, the surface hardness is improved after the spraying of the spraying device, and the hollow anchor rod has higher strength and higher elongation after the heat treatment.
Description
Technical Field
The invention belongs to the technical field of hollow anchor rod processing methods, and particularly relates to a hollow anchor rod processing method.
Background
With the continuous development of railway transportation industry in China, particularly the current increasingly popular elevated railways, the acceptance requirements of basic engineering are higher and higher, so that higher requirements are provided for the quality of various engineering materials, higher requirements are provided for the mechanical properties such as tensile strength, elongation and the like of the hollow anchor rod in the current railway standard in China, for example, the hollow anchor rod in the railway standard adopts a wall thickness of 7 mm and 3.14 kg per meter, if the strength requirements in the railway standard are met according to the existing anchor rod hot rolling type production mode, the production can only be realized by increasing the consumption of steel, namely, a thicker steel pipe is adopted as a hot rolling raw material, the anchor rod produced by the mode meets the mechanical properties specified in the railway standard, but the internal space is smaller due to the increase of the wall thickness of the hollow anchor rod, and the use performance of the anchor rod is influenced, the grouting pressure attenuation loss is huge due to the difficulty of grouting inside the hollow anchor rod, and meanwhile, the wall thickness of the hollow anchor rod is increased to ensure the strength of the hollow anchor rod, so that a large amount of steel is wasted.
Because of the cavity stock can follow body of rod hole slip casting, it can realize pressure slip casting through cooperating with backing plate, nut, grout stopping stopper etc. to its slip casting effect is superior to the steel bar stock, and the cavity body of rod can unite into one with drilling, slip casting, anchor with the drill bit cooperation, and the tip anchor can be realized to the cooperation of cavity stock expansion shell spearhead, and a plurality of advantages of cavity stock make its use more and more extensive, and replaced traditional steel bar stock gradually in many fields. However, as the use environment of the hollow anchor rod is more and more demanding, the requirements for the comprehensive performance of the hollow anchor rod are higher and higher, and not only is very high strength required, but also higher elongation is required.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for processing a hollow anchor rod, wherein the materials and devices used for processing the hollow anchor rod comprise: the processing method of the hollow anchor rod comprises the following steps of hot-rolling seamless round steel, a superaudio induction heater, a perforating device, a rolling device, a spraying device and a heat treatment device, wherein the processing method of the hollow anchor rod comprises the following steps:
s1: putting the hot-rolled seamless round steel into a superaudio induction heater to be heated at a certain temperature;
s2: further heating the heated hot-rolled seamless round steel, putting the heated hot-rolled seamless round steel into a perforating device for perforating, performing heat preservation treatment on the perforated hot-rolled round steel after perforating, and performing cooling treatment after heat preservation treatment;
s3: after cooling, putting the perforated hot-rolled round steel into a rolling device for deformation treatment, and pressing the perforated hot-rolled round steel into a thread shape;
s4: after rolling, sending the rolled round steel into a spraying device for continuous spraying, and ensuring that the punched hot rolled round steel is uniformly sprayed;
s5: and finally, putting the perforated hot-rolled round steel into a heat treatment device for heat treatment to obtain a finished product.
Preferably, the heating temperature in the ultrasonic frequency induction heater is 970 ℃.
Preferably, the further heating temperature is 1150-1200 ℃.
Preferably, the time of the heat preservation treatment is 5-7 min.
Preferably, the temperature during the temperature reduction treatment is 500-700 ℃.
Preferably, the heat treatment is mainly a water cooling treatment, and the water pressure and the water amount of the heat treatment apparatus should be adjusted during the heat treatment.
Compared with the prior art, the invention has the beneficial effects that: the manufactured hollow anchor rod is low in cost, the surface hardness is improved after the spraying of the spraying device, and the hollow anchor rod has high strength and high elongation after heat treatment.
Drawings
Fig. 1 is a drawing of implementation steps of a hollow anchor rod machining method.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious 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.
The invention is further described below:
example (b):
the existing hollow anchor rod heating method mainly comprises the following steps: the hot-rolled seamless steel pipe or the cold-rolled seamless steel pipe is directly rolled and formed through an anchor rod rolling mill, the anchor rod production process has the phenomenon of insufficient strength or toughness although the cost is low, namely the comprehensive mechanical property is low, and if the comprehensive mechanical property of the hollow anchor rod is greatly improved, a heat treatment method is usually adopted.
As shown in fig. 1, a method for processing a hollow anchor rod, wherein materials and devices used for processing the hollow anchor rod comprise: the processing method of the hollow anchor rod comprises the following steps of hot-rolling seamless round steel, a superaudio induction heater, a perforating device, a rolling device, a spraying device and a heat treatment device, wherein the processing method of the hollow anchor rod comprises the following steps:
s1: putting hot-rolled seamless round steel into a superaudio induction heater, and heating to 970 ℃;
s2: further heating the heated hot-rolled seamless round steel to 1150-plus 1200 ℃, putting the heated hot-rolled seamless round steel into a perforating device for perforating treatment, preserving the heat of the perforated hot-rolled round steel for 5-7min after perforating, and cooling the perforated hot-rolled round steel after preserving the heat;
s3: after cooling to 500-700 ℃, putting the perforated hot-rolled round steel into a rolling device for deformation treatment, wherein the deformation degree is more than 80%, and pressing and rolling the perforated hot-rolled round steel into a thread shape;
s4: after rolling, sending the rolled round steel into a spraying device for continuous spraying, and ensuring that the punched hot rolled round steel is uniformly sprayed;
s5: and finally, putting the perforated hot-rolled round steel into a heat treatment device for heat treatment to obtain a finished product.
Specifically, the heat treatment is mainly water cooling treatment, and the water pressure and the water amount of the heat treatment apparatus should be adjusted during the heat treatment.
It should be noted that, in this document, moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A method for processing a hollow anchor rod is characterized in that materials and devices used for processing the hollow anchor rod comprise: the processing method of the hollow anchor rod comprises the following steps of hot-rolling seamless round steel, a superaudio induction heater, a perforating device, a rolling device, a spraying device and a heat treatment device, wherein the processing method of the hollow anchor rod comprises the following steps:
s1: putting the hot-rolled seamless round steel into a superaudio induction heater to be heated at a certain temperature;
s2: further heating the heated hot-rolled seamless round steel, putting the heated hot-rolled seamless round steel into a perforating device for perforating, performing heat preservation treatment on the perforated hot-rolled round steel after perforating, and performing cooling treatment after heat preservation treatment;
s3: after cooling, putting the perforated hot-rolled round steel into a rolling device for deformation treatment, and pressing the perforated hot-rolled round steel into a thread shape;
s4: after rolling, sending the rolled round steel into a spraying device for continuous spraying, and ensuring that the punched hot rolled round steel is uniformly sprayed;
s5: and finally, putting the perforated hot-rolled round steel into a heat treatment device for heat treatment to obtain a finished product.
2. A method of machining a hollow bolt according to claim 1, characterised in that the heating temperature in the ultrasonic induction heater is 970 ℃.
3. A method for machining a hollow anchor rod as claimed in claim 1, wherein the further heating is performed at 1150-1200 ℃.
4. A hollow anchor rod processing method according to claim 1, characterized in that the time of the heat preservation treatment is 5-7 min.
5. A method for processing a hollow anchor rod as claimed in claim 1, wherein the temperature of the cooling process is 500-700 ℃.
6. A hollow anchor rod processing method according to claim 1, wherein the heat treatment is mainly a water cooling treatment, and the water pressure and the water amount of the heat treatment device should be adjusted when the heat treatment is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248074.6A CN110899334A (en) | 2019-12-09 | 2019-12-09 | Hollow anchor rod processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248074.6A CN110899334A (en) | 2019-12-09 | 2019-12-09 | Hollow anchor rod processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110899334A true CN110899334A (en) | 2020-03-24 |
Family
ID=69823480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911248074.6A Withdrawn CN110899334A (en) | 2019-12-09 | 2019-12-09 | Hollow anchor rod processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110899334A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588820A (en) * | 2020-12-25 | 2021-04-02 | 首钢长治钢铁有限公司 | Production method of hot-rolled mining anchor rod steel |
| CN115533456A (en) * | 2022-10-10 | 2022-12-30 | 陕西欣阳美航实业有限公司 | Production method of rock-proof mine hole supporting device |
| CN116042996A (en) * | 2022-12-07 | 2023-05-02 | 中铁隆昌铁路器材有限公司 | Heat treatment device and method for continuous online production of hollow anchor rod body |
-
2019
- 2019-12-09 CN CN201911248074.6A patent/CN110899334A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588820A (en) * | 2020-12-25 | 2021-04-02 | 首钢长治钢铁有限公司 | Production method of hot-rolled mining anchor rod steel |
| CN115533456A (en) * | 2022-10-10 | 2022-12-30 | 陕西欣阳美航实业有限公司 | Production method of rock-proof mine hole supporting device |
| CN116042996A (en) * | 2022-12-07 | 2023-05-02 | 中铁隆昌铁路器材有限公司 | Heat treatment device and method for continuous online production of hollow anchor rod body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110899334A (en) | Hollow anchor rod processing method | |
| CN104722702B (en) | Supercritical unit high temperature steam pipeline forging molding process | |
| CN100374241C (en) | OOCr22Ni5MO3N high-nitrogen steel seamless steel pipe manufacturing method | |
| CN102371288A (en) | Preparation method of high-precision and high-strength titanium alloy seamless tube | |
| CN104439933A (en) | Technological method for improving performance of large-diameter carbon steel cast and rolled flange part | |
| CN102644036A (en) | High-strength reinforcing steel bar with spiral fins and processing method of high-strength reinforcing steel bar | |
| CN106283084B (en) | A kind of compound effective corrosion resistant alloy UNS N08825 cold-rolled strip manufacturing method | |
| CN105195551A (en) | Profiled bar fine wire drawing technology | |
| CN102489944A (en) | Processing method of 2Cr13 rectangular pipe | |
| CN101367091B (en) | Control method for plate shape of high-strength steel plate | |
| CN110125314A (en) | A kind of forging method of high-carbon-chromium bearing steel forging stock | |
| CN107345290A (en) | A kind of manufacture method of TC4 titanium alloy thin walls ring | |
| CN107297449A (en) | A kind of metallurgical composite bolt two pass time performing hot-heading forming technique of stainless steel/carbon | |
| CN104862593A (en) | Ferritic stainless steel seamless steel tube and preparation method thereof | |
| CN105537487B (en) | Various shaped fishplate manufacture method and mould | |
| CN110153199A (en) | A kind of controlled rolling method of large scale rod bar | |
| CN101988142A (en) | Mould heat treatment water-oil quenching process | |
| CN106947852A (en) | It is a kind of to improve the method that combined shaping large-sized heavy-wall tube performance is squeezed in casting | |
| CN105080971B (en) | The method for preparing titanium alloy seamless pipe | |
| CN103060675A (en) | Annealing-free wire rod for 05-grade high-strength nut and production method of annealing-free wire rod | |
| CN104772603B (en) | Forming process method for eccentric aluminum alloy reducing tube | |
| CN105032933A (en) | Warm rolling processing technology of low-cost high-performance hollow anchor rod | |
| CN203817045U (en) | Production technological arrangement for screw-thread steel bar with three ribbed sides | |
| CN106269980A (en) | A kind of preparation technology of seamless steel pipe | |
| CN105032976A (en) | Production method of titanium alloy seamless pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200324 |