CN108979010A - Full grout sleeve of a kind of extruding steel and preparation method thereof - Google Patents
Full grout sleeve of a kind of extruding steel and preparation method thereof Download PDFInfo
- Publication number
- CN108979010A CN108979010A CN201811109782.7A CN201811109782A CN108979010A CN 108979010 A CN108979010 A CN 108979010A CN 201811109782 A CN201811109782 A CN 201811109782A CN 108979010 A CN108979010 A CN 108979010A
- Authority
- CN
- China
- Prior art keywords
- preparation
- sleeve
- grout sleeve
- annealing
- extruding
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The present invention provides full grout sleeve of a kind of extruding steel and preparation method thereof, include the following steps: that the sleeve hollow billet of (A) Jing Guo cold rolling in 600-660 DEG C of primary annealing 20-25min, then squeezes the draw；(B) by the processed casing of above-mentioned steps after 550-600 DEG C of double annealing handles 15-20min, processing and forming.Preparation method of the invention prepares grout sleeve by using the method for extruding, previous all drawbacks that grout sleeve is prepared using ball milling and machining are abandoned, it is quality controllable in production process, it is not in the process for having mechanical performance change, production efficiency is fast, and save the cost is discharged without waste iron filing in production process, it is environmentally protective, operating process is controllable, and the performance for the grout sleeve various aspects being prepared is more excellent, therefore the application that should be widely promoted.
Description
Technical field
The present invention relates to grout sleeves to process preparation field, in particular to a kind of full grout sleeve of extruding steel and
Preparation method.
Background technique
Prefabricated assembled concrete structure has speed of application as a kind of structure type for meeting industrialized production
Fastly, labor intensity is low, noise pollution and wet construction is few and the advantages such as product quality is easy to control, has obtained answering extensively in developed country
With.Use prefabrication and assembly construction construction techniques can with effectively save resource and the energy, improve material realize building energy conservation and
Utilization rate in terms of structural behaviour overcomes the limitation of construction site and environmental condition to site operation, reduces site operation labour
Power quantity reduces the adverse effect of building waste and Construction on Environment, improves building function and structural behaviour.Promote prefabrication and assembly construction
Formula concrete structure is advantageously implemented the Green Development requirement of " four sections, one environmental protection ", realizes the building course of low energy consumption, low emission,
Scheduled target for energy-saving and emission-reduction is realized in the sound development that can promote Building Trade in China, is the developing direction of China's future architecture.
The performance that reinforcing bar connects in prefabricated assembled concrete component directly determines that the overall performance of structure and reinforcing bar pass
The performance of the effect of power, reinforcing bar connection is the key factor of steel bar force transfer, and the selection of reinforcing bar connection type directly affects building
Speed of application and cost.Also, the connection of longitudinal reinforcement is crucial in prefabricated assembled concrete component, wherein longitudinal reinforcement
For the reinforcing bar laid along prefabricated assembled concrete component longitudinal length and its steel bar stress.In cast-in-place concrete structure,
Common longitudinal reinforcement connection type has the connection types such as binding overlap joint, welded connecting and mechanical connection, but due to prefabricated dress
Reinforcing bar connecting portion space with formula concrete component is smaller, is not easy to construct using above-mentioned traditional reinforcing bar connection type.Steel
Muscle sleeve grouting jointing can be well solved the longitudinal reinforcement connectivity problem in prefabricated assembled concrete structure, can have
Effect realizes the equivalent cast-in-place design requirement of assembly, and due to the application generality of grout sleeve, the excellent of performance is directly decide
The operation difficulty of construction, and the quality problems of construction.
What existing grout sleeve manufacture craft generallyd use is nodular cast iron technique and mechanical processing technique, nodular cast iron
The shortcomings that technique is: 1, Oxygen potential >=85% is entirely unstable in factory's regulation mechanical performance.2. spheroidal graphite cast-iron elongation percentage is low disconnected
The easy kingfisher of rate elongation >=5% is easy to produce internal stress afterwards.It is easily rupturable in the case where fatigue and resonance.3, spheroidal graphite cast-iron contamination of products
It is unfavorable for environmental protection greatly.The shortcomings that mechanical processing technique is: 1, machine adds difficulty mass production inefficiency at high cost.2, machine adds process
The a large amount of iron filings discharge wasting of resources and environmental protection are uncontrollable.3, rolled steel dosage is big, process wedge angle easy to form, internal stress collection
In crack.
It can be seen that destroying sleeve mechanical property, tensile strength after the generally existing difficult processing of the processing technology of the prior art, processing
The problems such as qualification rate is not high and tension test is long in time limit.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of preparation method for squeezing full grout sleeve, and the preparation method is by adopting
Grout sleeve is prepared with the method for extruding, has abandoned previous all disadvantages for preparing grout sleeve using ball milling and machining
It holds, it is quality controllable in production process, it is not in the process for having mechanical performance change, production efficiency is fast, and production process is without scrap iron
Bits discharge save the cost, environmentally protective, operating process is controllable, and the performance for the grout sleeve various aspects being prepared is more excellent
It is different, therefore the application that should be widely promoted.
The second object of the present invention is to provide the full grout sleeve of extruding that above-mentioned preparation method is prepared, the full grouting
It is equipped with circular arc shearing slot inside and outside sleeve and both ends are closed up, enhances the tensile strength of sleeve itself, unstressed centrostigma, tension
Intensity >=600MPa, rate elongation >=16% of having no progeny, yield strength >=355MPa, various aspects of performance are superior to using traditional handicraft system
Standby obtained full grout sleeve.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
The embodiment of the invention provides a kind of preparation methods for squeezing the full grout sleeve of steel, include the following steps:
(A) then the sleeve hollow billet Jing Guo cold rolling squeezes the draw at 600-660 DEG C of primary annealing 20-25min；
(B) by the processed casing of above-mentioned steps after 550-600 DEG C of double annealing handles 15-20min, processing and forming is
It can.
Full grout sleeve refers to that the reinforcing bar at both ends passes through grouting material and is directly attached with sleeve.It is main in the prior art
It is prepared using nodular cast iron and mechanical processing technique.But the generally existing difficult processing of the processing technology of the prior art, processing
The problems such as sleeve mechanical property, tensile strength qualification rate be not high and tension test is long in time limit is destroyed afterwards.
To solve the above-mentioned problems, the present invention provides a kind of method that extrusion process prepares full grout sleeve, the present invention
Above-mentioned preparation process in, key be the operation temperature of twice annealing process and the control of operating time, because of prior art
In also have the technical process annealed, but the time and temperature control due to annealing is not proper, the grouting set prepared
Cylinder rough surface, uneven, irregular colour, matt, the mechanical performance of various aspects itself is also not guaranteed, but of the invention
Inventor by the way that the concrete operation step of annealing process has been carried out a large amount of practices after, the grout sleeve surface light that is prepared
Sliding, glossy, color is uniform, and appearance condition uniformity is high, and the mechanical performance of various aspects has obtained the promotion of matter, is existing
The performance for the grout sleeve that other techniques in technology are prepared is incomparable.
Preferably as further enforceable mode of operation, in the step (A), 620-650 DEG C of primary annealing
21-24min。
Preferably as further enforceable mode of operation, in the step (B), 560-580 DEG C of double annealing processing
18-19min。
The rate of heat addition of above-mentioned twice annealing process controls between 8-9 DEG C/min, for example, can for 8.3 DEG C/min,
8.4 DEG C/min, 8.5 DEG C/min, 8.6 DEG C/min, 8.7 DEG C/min etc..
Primarily to eliminating seamless steel overpressure, reduction seamless steel pipe interior tissue reaches the purpose of annealing for the first time
The structure refinement uniformity.The purpose of double annealing eliminates pressure in material caused by extruded product and reduces residual deformation, passes through
The control of twice annealed concrete operations parameter improves the stability for the full grout sleeve being prepared, improves its various aspects
Performance.
There is the processing step (not heating) for squeezing the draw between annealing for the first time and second of annealing, which can answer
Power deformation, it is therefore desirable to residual stress be performed corresponding processing, if not handling the full grout sleeve surface being prepared very
Be easy to produce crackle, so need to carry out double annealing processing, if but residual stress is eliminated improper, sleeve itself is too
It is soft to easily deform, or even it is directly becoming substandard product, the requirement normally produced is influenced whether, so carrying out secondary move back
During fire, the temperature of annealing and the time of annealing be required to control it is proper, to prevent occur residual stress eliminate it is improper, it is raw
The underproof product of output.
After residual stress is eliminated, the performance of butt joint is needed to be evaluated and tested, performance parameter needs to meet following require:
In one directional tensile test: residual deformation (mm) u0≤ 0.10 (d≤32), u0≤ 0.14 (d > 32), it is total under maximum, force
Elongation percentage (%), Asgt >=6.0.
High stress is repeatedly in tensile compression test, residual deformation (mm) u20≤0.3。
Large deformation is repeatedly in tensile compression test, residual deformation (mm) u4≤ 0.3 and u8≤0.6。
After prepared by operating procedure according to the invention, performance is able to satisfy above-mentioned standard.
It successively include such as before cold rolling in the step (A) preferably as further enforceable mode of operation
Lower step: the step of rod iron is passed through into cutting, hot piercing, scale removal phospholeum.
Preferably as further enforceable mode of operation, in the step (A), Steel material that rod iron uses is 45
Number steel, the elongation control of Steel material is 18% or more, and due to being related to deformation operation during extrusion process, deformation ratio is larger
It is just easy to generate the deformation of stress, it is therefore desirable to control the elongation percentage of the raw material of steel, to meet the grouting of production
The performance requirement of the various aspects of sleeve.
Preferably as further enforceable mode of operation, in the step (B), the step of processing and forming, is successively wrapped
It includes: boring grout nipple, attack grout nipple silk, after drill centers, mark knowledge, assembling assembly.
Preferably as further enforceable mode of operation, in the step (A), the sleeve during the draw is squeezed
Compressive plane length is controlled in 200mm or less.
Preferably as further enforceable mode of operation, sleeve diameter after extruding is reduced in 6mm or less；
Preferably, the mold that both ends are all made of multiple fissions during the extruding draw forms a complete grout sleeve week
Shape, effect of the mold of multiple fissions Jing Guo hydraulic coupling are shunk simultaneously, grouting end outer circle formed a plurality of contraction trace with into
Row squeezes.In the production process, the mold for being completely divided into multiple fissions using one carries out squeeze to the present invention, this
The mold of sample entirety, which not only squeezes, to be more uniformly stressed, and is more favorable to form.
The solution of the present invention also protects a kind of full grout sleeve of the extruding being prepared using above-mentioned preparation method, this is complete
The performance of grout sleeve can reach following index: tensile strength >=600MPa of full grout sleeve, rate elongation >=16% of having no progeny are bent
Take intensity >=355MPa.
Compared with prior art, the invention has the benefit that
(1) preparation method of the full grout sleeve of extruding of the invention prepares grout sleeve by using the method for extruding, gets rid of
Abandon previous all drawbacks that grout sleeve is prepared using ball milling and machining, it is quality controllable in production process, it will not go out
The process of existing machinery performance change, production efficiency is fast, and save the cost is discharged without waste iron filing in production process, environmentally protective, operation
The performance of process control, the grout sleeve various aspects being prepared is more excellent, therefore the application that should be widely promoted；
(2) it is equipped with circular arc shearing slot inside and outside the full grout sleeve of extruding of the invention and both ends are closed up, enhances sleeve sheet
The tensile strength of body, unstressed centrostigma, tensile strength >=600MPa, rate elongation >=16% of having no progeny, yield strength >=355MPa,
Various aspects of performance is superior to the full grout sleeve being prepared using traditional handicraft.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
Embodiment 1
A kind of preparation method of full grout sleeve includes the following steps:
1) raw material rod iron is examined, and the material of rod iron is No. 45 steel；
2) it is cut out；
3) hot piercing；
4) scale removal phospholeum: it is 20%, pH that the processed sleeve hollow billet of above-mentioned steps, which is immersed pickling solution concentration,
25min in≤2 pickling liquid bath；It immerses in the first rinse bath, then slings after the good sleeve hollow billet of pickling is drained, so up and down
It lifts by crane 2-3 times repeatedly and spent acid is washed；It immerses in the second rinse bath, then slings again, so lift by crane 2-3 progress repeatedly up and down
Cleaning；Then phosphating solution pH=2 is immersed after cleaned sleeve hollow billet being drained, temperature is phosphatization in 75 DEG C of phosphatization liquid baths
20min；It immerses in third rinse bath, then slings after the good sleeve hollow billet of phosphatization is drained again, so lift by crane 2~3 repeatedly up and down
It is secondary to be cleaned；It immerses in the saponification liquid bath that saponification liquor temperature is 80 DEG C and is saponified after finally cleaned sleeve hollow billet is drained
15min, then hang on material stock frame and place naturally dry；
5) cold rolling；
6) primary annealing: the sleeve hollow billet after cold rolling is placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 600 DEG C, and annealing time is
25min, and will treated sleeve hollow billet correlated performance detection；
7) draw is squeezed after cutting, grout sleeve mold is made of 8 valves, and extruded length is comprehensive to be pressed up to 200mm
Power, it is relatively high to the toughness reguirements of Steel material；
8) double annealing is handled: the sleeve hollow billet after cold rolling being placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 550 DEG C, and annealing time is
20min, and sleeve hollow billet correlated performance detects by treated；
9) grout nipple is bored, attacks grout nipple silk, after drill centers, mark knowledge, assembling assembly, last test package storage.
Embodiment 2
A kind of preparation method of full grout sleeve includes the following steps:
1) raw material rod iron is examined, and the material of rod iron is No. 45 steel, and the elongation percentage of Steel material is 18%；
2) it is cut out；
3) hot piercing；
4) scale removal phospholeum: it is 20%, pH that the processed sleeve hollow billet of above-mentioned steps, which is immersed pickling solution concentration,
25min in≤2 pickling liquid bath；It immerses in the first rinse bath, then slings after the good sleeve hollow billet of pickling is drained, so up and down
It lifts by crane 2-3 times repeatedly and spent acid is washed；It immerses in the second rinse bath, then slings again, so lift by crane 2-3 progress repeatedly up and down
Cleaning；Then phosphating solution pH=2 is immersed after cleaned sleeve hollow billet being drained, temperature is phosphatization in 75 DEG C of phosphatization liquid baths
20min；It immerses in third rinse bath, then slings after the good sleeve hollow billet of phosphatization is drained again, so lift by crane 2~3 repeatedly up and down
It is secondary to be cleaned；It immerses in the saponification liquid bath that saponification liquor temperature is 80 DEG C and is saponified after finally cleaned sleeve hollow billet is drained
15min, then hang on material stock frame and place naturally dry；
5) cold rolling；
6) primary annealing: the sleeve hollow billet after cold rolling is placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 660 DEG C, and that once anneals adds
Hot rate is 9 DEG C/min, annealing time 25min, and will treated sleeve hollow billet correlated performance detection；
7) draw is squeezed after cutting, grout sleeve mold is made of 8 valves, and up to 200mm, squeezing diameter can contract extruded length
Small 6mm, it is comprehensive to be under pressure, it is relatively high to the toughness reguirements of Steel material；
8) double annealing is handled: the sleeve hollow billet after cold rolling being placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 600 DEG C, and double annealing adds
Hot rate is 8 DEG C/min, annealing time 15min, and sleeve hollow billet correlated performance detects by treated；
9) grout nipple is bored, attacks grout nipple silk, after drill centers, mark knowledge, assembling assembly, last test package storage.
Embodiment 3
Concrete operation step and embodiment 2 are almost the same, and only difference is:
6) primary annealing: the sleeve hollow billet after cold rolling is placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 620 DEG C, and that once anneals adds
Hot rate is 8.5 DEG C/min, annealing time 24min, and will treated sleeve hollow billet correlated performance detection；
7) draw is squeezed after cutting, grout sleeve mold is made of 8 valves, and up to 200mm, squeezing diameter can contract extruded length
Small 5mm, it is comprehensive to be under pressure, it is relatively high to the toughness reguirements of Steel material；
8) double annealing is handled: the sleeve hollow billet after cold rolling being placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 560 DEG C, and double annealing adds
Hot rate is 8.4 DEG C/min, annealing time 19min, and sleeve hollow billet correlated performance detects by treated.
Embodiment 4
Concrete operation step and embodiment 2 are almost the same, and only difference is:
6) primary annealing: the sleeve hollow billet after cold rolling is placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 620 DEG C, and that once anneals adds
Hot rate is 8.5 DEG C/min, annealing time 24min, and will treated sleeve hollow billet correlated performance detection；
7) draw is squeezed after cutting, grout sleeve mold is made of 8 valves, and up to 200mm, squeezing diameter can contract extruded length
Small 6mm, it is comprehensive to be under pressure, it is relatively high to the toughness reguirements of Steel material；
8) double annealing is handled: the sleeve hollow billet after cold rolling being placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 580 DEG C, and double annealing adds
Hot rate is 8.4 DEG C/min, annealing time 18min, and sleeve hollow billet correlated performance detects by treated.
Embodiment 5
Concrete operation step and embodiment 2 are almost the same, and only difference is:
6) primary annealing: the sleeve hollow billet after cold rolling is placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 650 DEG C, and that once anneals adds
Hot rate is 8.6 DEG C/min, annealing time 21min, and will treated sleeve hollow billet correlated performance detection；
7) draw is squeezed after cutting, grout sleeve mold is made of 8 valves, and up to 180mm, squeezing diameter can contract extruded length
Small 6mm, it is comprehensive to be under pressure, it is relatively high to the toughness reguirements of Steel material；
8) double annealing is handled: the sleeve hollow billet after cold rolling being placed in continuous annealing furnace and carries out continuous annealing treatment, even
7 nozzles are set on continuous annealing furnace, the air quantity of continuous annealing furnace is set as greatly, and annealing temperature is set as 570 DEG C, and double annealing adds
Hot rate is 8.4 DEG C/min, annealing time 18min, and sleeve hollow billet correlated performance detects by treated.
Comparative example 1
Body operating procedure and embodiment 5 are almost the same, and only difference is: the temperature once made annealing treatment is 700 DEG C, is moved back
The fiery time is 1h.
Comparative example 2
Body operating procedure and embodiment 5 are almost the same, and only difference is: the temperature of double annealing processing is 400 DEG C, is moved back
The fiery time is 10min.
Comparative example 3
Grout sleeve is prepared according to the preparation process of following spheroidal graphite cast-iron: being made according to certain chemical component element molten iron
Smelting, spheroidising, casting；By obtained cast iron through 930 DEG C of -1100 DEG C of heating, furnace cooling after soaking in 2-4 hours is kept the temperature,
Obtain ferrite ductile cast iron grout sleeve；
In above-mentioned technical process, needs to add chemical element and carry out certain temperature control, chemical element ratio is bad
Control, the constructional transfer for pouring mold influence the quality of sleeve itself, such as the problems such as stomata.
Comparative example 4
Grout sleeve is prepared according to the preparation process being machined as follows:
1) raw material rod iron is examined, and the material of rod iron is No. 45 steel, and the elongation percentage of Steel material is 18%；
2) it is cut out；
3) hot piercing；
4) scale removal phospholeum: it is 20%, pH that the processed sleeve hollow billet of above-mentioned steps, which is immersed pickling solution concentration,
25min in≤2 pickling liquid bath；It immerses in the first rinse bath, then slings after the good sleeve hollow billet of pickling is drained, so up and down
It lifts by crane 2-3 times repeatedly and spent acid is washed；It immerses in the second rinse bath, then slings again, so lift by crane 2-3 progress repeatedly up and down
Cleaning；Then phosphating solution pH=2 is immersed after cleaned sleeve hollow billet being drained, temperature is phosphatization in 75 DEG C of phosphatization liquid baths
20min；It immerses in third rinse bath, then slings after the good sleeve hollow billet of phosphatization is drained again, so lift by crane 2~3 repeatedly up and down
It is secondary to be cleaned；It immerses in the saponification liquid bath that saponification liquor temperature is 80 DEG C and is saponified after finally cleaned sleeve hollow billet is drained
15min, then hang on material stock frame and place naturally dry；
5) cold rolling；
6) overall length is cut, car shearing slot shears slot outside vehicle, bores grout nipple, attacks grout nipple silk, after drill centers, mark knows,
Assembling assembly, last test package storage.
Mach thickness is thick, and production efficiency is low.
Experimental example 1
The performance for the grout sleeve that each embodiment is prepared with comparative example is tested, concrete outcome such as the following table 1 institute
Show.
1 test result of table compares
From above-mentioned test result can be seen that full grout sleeve that the extrusion process of the embodiment of the present invention is prepared from appearance,
Aspect of performance show it is more excellent, if but do not adjusted for annealing operation parameter important in preparation process of the invention
Into claimed range of the invention, the quality of grout sleeve itself is certain to have a certain impact, because if annealing
Temperature is too high, too low its can all influence the microstructure in Steel material itself, to be easy to cause cracking, is not achieved ideal
Intensity, if same annealing time it is too long, it is too short also full grout sleeve can be made to easily deform, influence its mechanical property
It can, it is therefore desirable to which manufacture craft according to the invention carries out.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from of the invention
Many other change and modification can be made in the case where spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of preparation method for squeezing the full grout sleeve of steel, which comprises the steps of:
(A) then the sleeve hollow billet Jing Guo cold rolling squeezes the draw at 600-660 DEG C of primary annealing 20-25min；
(B) by the processed casing of above-mentioned steps after 550-600 DEG C of double annealing handles 15-20min, processing and forming.
2. preparation method according to claim 1, which is characterized in that in the step (A), 620-650 DEG C of primary annealing
Handle 21-24min；
Preferably, the rate of heat addition once annealed is controlled in 8-9 DEG C/min.
3. preparation method according to claim 1, which is characterized in that in the step (B), 560-580 DEG C of double annealing
Handle 18-19min.
Preferably, the rate of heat addition of double annealing is controlled in 8-9 DEG C/min.
4. preparation method according to claim 1, which is characterized in that in the step (A), before cold rolling, successively wrap
Include following steps: the step of rod iron is passed through into cutting, hot piercing, scale removal phospholeum.
5. the preparation method according to claim 4, which is characterized in that in the step (A), Steel material that rod iron uses for
No. 45 steel, the elongation control of the Steel material is 16% or more.
6. preparation method according to claim 1-5, which is characterized in that in the step (B), processing and forming
Step successively includes: brill grout nipple, attacks grout nipple silk, after drill centers, mark knowledge, assembling assembly.
7. preparation method according to claim 6, which is characterized in that in the step (A), squeeze the set during the draw
Cylinder compressive plane length control is in 220mm or less.
8. preparation method according to claim 7, which is characterized in that in the step (B), sleeve diameter contracting after extruding
It is small in 6mm or less；
Preferably, the mold that both ends are all made of multiple fissions during the extruding draw forms a complete grout sleeve week shape
Shape, effect of the mold of multiple fissions Jing Guo hydraulic coupling are shunk simultaneously, form a plurality of contraction trace in grouting end outer circle to carry out
It squeezes.
9. the full grout sleeve of extruding that the described in any item preparation methods of claim 1-8 are prepared.
10. according to claim 9 squeeze full grout sleeve, which is characterized in that the tensile strength of the full grout sleeve
>=600MPa, rate elongation >=16% of having no progeny, yield strength >=355MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109782.7A CN108979010A (en) | 2018-09-21 | 2018-09-21 | Full grout sleeve of a kind of extruding steel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109782.7A CN108979010A (en) | 2018-09-21 | 2018-09-21 | Full grout sleeve of a kind of extruding steel and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108979010A true CN108979010A (en) | 2018-12-11 |
Family
ID=64546529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811109782.7A Pending CN108979010A (en) | 2018-09-21 | 2018-09-21 | Full grout sleeve of a kind of extruding steel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108979010A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11279666A (en) * | 1998-03-27 | 1999-10-12 | Nippon Steel Corp | Outlet side press roll for electric heating device and method for preventing breakage of roll |
| CN101386037A (en) * | 2008-10-29 | 2009-03-18 | 常熟市旋力轴承钢管有限公司 | Treatment technique of 1010 steel for bearing ring |
| CN103758292A (en) * | 2014-01-24 | 2014-04-30 | 东南大学 | Shearing reinforcing type full-grouting sleeve |
| CN104338778A (en) * | 2013-07-31 | 2015-02-11 | 无锡大金高精度冷拔钢管有限公司 | Method for manufacturing precise inner hole honing tube |
| CN104338781A (en) * | 2013-07-31 | 2015-02-11 | 无锡大金高精度冷拔钢管有限公司 | Method for manufacturing high-hardness cold-drawn steel tube |
-
2018
- 2018-09-21 CN CN201811109782.7A patent/CN108979010A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11279666A (en) * | 1998-03-27 | 1999-10-12 | Nippon Steel Corp | Outlet side press roll for electric heating device and method for preventing breakage of roll |
| CN101386037A (en) * | 2008-10-29 | 2009-03-18 | 常熟市旋力轴承钢管有限公司 | Treatment technique of 1010 steel for bearing ring |
| CN104338778A (en) * | 2013-07-31 | 2015-02-11 | 无锡大金高精度冷拔钢管有限公司 | Method for manufacturing precise inner hole honing tube |
| CN104338781A (en) * | 2013-07-31 | 2015-02-11 | 无锡大金高精度冷拔钢管有限公司 | Method for manufacturing high-hardness cold-drawn steel tube |
| CN103758292A (en) * | 2014-01-24 | 2014-04-30 | 东南大学 | Shearing reinforcing type full-grouting sleeve |
| CN103758292B (en) * | 2014-01-24 | 2016-04-06 | 东南大学 | The full grout sleeve of a kind of shearing enhancement mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104722702B (en) | Supercritical unit high temperature steam pipeline forging molding process | |
| CN107116339B (en) | A kind of zirconium alloy cladding tubing preparation process | |
| CN104511726B (en) | Five cylinder pressure break pump crankcase manufacture method of Whole fiber Integral die-forged | |
| CN101825200A (en) | Titanium alloy TC4 hot-rolled tube and production method thereof | |
| CN103846305A (en) | Preparation machining method of large-diameter pipe material and special-shaped pipe fitting | |
| CN111906498A (en) | Processing method of TA18 titanium alloy seamless pipe for bicycle frame | |
| CN104561651A (en) | Titanium alloy (Ti5563) rolled pipe and preparation method thereof | |
| CN105986144A (en) | Titanium alloy TA18 seamless pipe and preparation method thereof | |
| CN103540796A (en) | Titanium alloy (TC11) rolled tube and preparation method thereof | |
| CN108421839A (en) | A kind of flat-bulb steel diplopore model extrusion method | |
| CN110252918A (en) | 3D printing powder Ti2The preparation method of AlNb based alloy bar | |
| CN108979009A (en) | A kind of half grout sleeve of extruding steel and preparation method thereof | |
| CN105215242B (en) | Method for forging concavity mold cavity module | |
| CN105441713A (en) | A titanium alloy seamless tube and a manufacturing method thereof | |
| CN109371335B (en) | Steel for ultrahigh-strength marine hose and preparation method thereof | |
| CN108979010A (en) | Full grout sleeve of a kind of extruding steel and preparation method thereof | |
| CN106947852B (en) | A method of it improves to cast and squeezes combined shaping large-sized heavy-wall tube performance | |
| CN109513766A (en) | A kind of manufacturing method of high concentricity martensitic stainless steel seamless pipe material | |
| CN117245045A (en) | Forging method of large-size Ti80 titanium alloy forging stock | |
| CN102465200A (en) | Manufacture method for seamless steel tube | |
| KR20140006186A (en) | Holding part forming type upsetting dies for a heavy metal forging process and the heavy metal forging process by it | |
| CN107574336A (en) | A kind of titanium alloy and preparation method thereof | |
| CN112080621A (en) | Pipe die material and post-forging heat treatment method thereof | |
| CN103056164B (en) | Reinforced chilled roll and preparation method thereof | |
| CN106541063B (en) | A kind of high-strength ductile cast iron forging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |
|
| RJ01 | Rejection of invention patent application after publication |