CN106077502A - One is applied to new-energy automobile and drives motor rotor rack casting technique - Google Patents
One is applied to new-energy automobile and drives motor rotor rack casting technique Download PDFInfo
- Publication number
- CN106077502A CN106077502A CN201610402330.2A CN201610402330A CN106077502A CN 106077502 A CN106077502 A CN 106077502A CN 201610402330 A CN201610402330 A CN 201610402330A CN 106077502 A CN106077502 A CN 106077502A
- Authority
- CN
- China
- Prior art keywords
- motor rotor
- rotor rack
- energy automobile
- new
- casting
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Abstract
A kind of casting technique applying new-energy automobile to drive motor rotor rack, this technology utilization base iron, steel scrap and foundry returns carry out high temperature melting, component analysis is carried out through spectroanalysis instrument, by adding appropriate element silicon, manganese element, carburant, inovulant and nodulizer, to carry out composition quenched, uses rain type pouring casting process casting high-performance new-energy automobile to drive motor rotor rack.Utilize this cast motor rotor rack tensile strength >=500Mpa out, yield strength >=320Mpa, elongation percentage >=7%, hardness 170 320HBS, Oxygen potential >=90%, graphite size 58 grades, content of pearlite in alloy 10% 15%, cementite ＜ 3%.In this casting technique, steel scrap (Q235) and foundry returns accounting about 40%, improve the comprehensive utilization of waste and old resource, cast out high performance motor rotor rack simultaneously.
Description
Technical field
The present invention relates to casting technology field, be specifically related to one and be applied to new-energy automobile driving motor rotor rack casting
Make technique.
Background technology
Domestic Automotive Industry quickly grows, it has also become Global Auto manufactures the first big country.New-energy automobile is as China's vapour
One of core competitiveness of turner industry, the transition and upgrade for Domestic Automotive Industry provides the new motive force of development.Driving motor is
One of big core component of the three of new-energy automobile, its drive characteristic determines the main performance index of running car, breaks through this
Key technology, for breaking the international vendor monopolization at new-energy automobile kernel component, promotes China's independent brand automobile
Competitiveness, there is important strategic importance.
Driving motor as one of three big core components of new-energy automobile, comparing traditional industry motor has higher undoubtedly
Technology requirement.Drive the vitals rotor field spider of rotor as support new-energy automobile, be to connect magnetic to grip and rotating shaft
All-in-one-piece intermediate member.In properly functioning, rotor field spider moment of torsion to be born, yoke and the gravitational moment of magnetic pole, rotor self
Centrifugal force, rotor field spider can be directly affected by the repetition alternate stress of various complexity, the quality of its performance in the course of the work
To the job stability and the service life that drive motor.
Thus it is necessary to study the rotor field spider casting technique driving motor for new-energy automobile, produces high property
Energy new-energy automobile Special drive motor rotor field spider, to improve the job stability of new-energy automobile driving motor and to use the longevity
Life.
(bulletin) number CN103305651A as open in Chinese patent, discloses the smelter of a kind of alloy nodular cast iron roll
Skill, comprises the following steps: melt in first part of foundry returns is first placed in intermediate frequency furnace；Add first part of high-quality steel scrap to carry out
Melting；After foundry returns and high-quality steel scrap dissolve, it is warming up to 1360-1380 DEG C, adds first part of carburant, add while stirring
Iron filings；After to be melted, add second part of high-quality steel scrap；It is warming up to 1360-1380 DEG C after dissolving, adds second part of carburant；Molten
Second part of foundry returns is added after change；It is warming up to 1380-1400 DEG C after dissolving and is incubated 2.5-5 minute；By the way, this
The bright mechanical property that can improve roll, and increase the service life, reduce cost.
(bulletin) number CN102041427A as open in Chinese patent discloses a kind of Grey cast iron production process, at prepared furnace charge
Shi Caiyong magnesium iron foundry returns replaces the pig iron as the raw material of furnace charge, and described furnace charge includes by mass percentage: 20-30%'s is useless
Steel, the casting pig foundry returns of 40-70%, the magnesium iron foundry returns of 20-30%.This Grey cast iron production process uses magnesium iron foundry returns generation
Carry out melting casting pig for the pig iron as furnace charge, magnesium iron foundry returns first can be made to be fully utilized, reduce the wave of resource
Take, then have the usage amount that can reduce the pig iron, and then reduce the production cost of enterprise, and use magnesium iron foundry returns to melt as furnace charge
Refining casting pig also can be effectively improved the quality of casting pig, improves the metallographic structure of cast iron.
(bulletin) number CN103722159A as open in Chinese patent discloses the casting method of a kind of rear axle support of heavy truck, bag
Include burden process, smelting and pouring operation, it is characterised in that burden process: weigh 44% pig iron respectively, 20% foundry returns, 36%
Steel scrap, the carburant of 1%-1.6%, the ferrosilicon of 0.2%-0.6%, the nodulizer of 1.2%, the inovulant of 0.65%；Melting is watered
Note operation: the pig iron, foundry returns, steel scrap, carburant, ferrosilicon are put into intermediate frequency furnace and carry out melting, prepares molten iron；In casting ladle
Add nodulizer and inovulant；When furnace temperature reaches 1510 DEG C, pour molten iron into casting ladle, carry out a spheroidization and inoculation；Ball
Change after breeding end, remove slag thing, then molten iron is poured into little earthen bowl carry out secondary spheroidization and inoculation；The molten iron in little earthen bowl is utilized to enter
Row cast obtains rear axle support of heavy truck.The rear axle support of heavy truck good product performance that the present invention prepares, range is wide, toughness is big,
Exempt from heat treatment to obtain, low cost.
Aforementioned patents disclose for steel scrap, the recycling technique of foundry returns, but due to the restriction of technique, the foundry goods obtained
Product is not enough in performance.
Summary of the invention
The technical problem to be solved is that providing one to be applied to new-energy automobile drives motor rotor rack
Casting technique.
One is applied to new-energy automobile and drives motor rotor rack casting technique, and concrete technology step is as follows:
(1) original material cast uses to be calculated by mass percentage: base iron (Q12) 60%, steel scrap (Q235) 20% He
20% foundry returns, as major ingredient, is contained by the composition of spectroanalysis instrument analysis carbon, silicon, manganese, phosphorus, sulfur and antimony element after melt processed
Amount, and by adding appropriate element silicon, manganese element, carburant, inovulant and nodulizer, to carry out composition quenched, makes composition meet
GBT9941-1991 standard-required；
Because the composition of steel scrap (Q235) is unstable, after major ingredient is melted, use spectroanalysis instrument analysis ingredient, basis at this
On, by adding appropriate element silicon, manganese element, carburant, inovulant and nodulizer, to carry out composition quenched, makes composition meet
GBT9941-1991 standard-required.
(2) use core shooter and the precoated sand that intensity is 3.5-4.0Mpa to make high-precision rotor field spider upper and lower mould, turn
Controlling precoated sand temperature 210 DEG C-230 DEG C in the patternmaking process of submounts upper and lower mould, adding the mulling time after resin is 80 seconds, reinforcing
The time that is blended after agent is 20 seconds, and adding the time that is blended after calcium stearate is 10 seconds；
The technological factor that the present invention is directed to affect precoated sand performance mainly have the heating-up temperature of roughing sand, add after resin mixed
Sand time, the mulling time etc. of addition firming agent, in order to obtain high-precision rotor field spider mould, the precoated sand temperature that technique uses
210 DEG C-230 DEG C, adding the mulling time after resin is 80 seconds, and adding the time that is blended after firming agent is 20 seconds, after adding calcium stearate
The time that is blended be 10 seconds, utilize core shooter manufacture high-precision support upper and lower mould.
(3) using rain type to pour, placing temperature 1420 DEG C-1480 DEG C, the time of pouring is 8 minutes；
(4) pour complete after cooling, casting grinding, enter finishing department, all kinds of hole slot of car system, detection warehouse-in,
Motor rotor rack is driven to high-performance new-energy automobile.
The present invention casts out high-performance new-energy automobile and drives motor rotor rack, obtains for this process and pours
Liquid, uses placing temperature 1420 DEG C-1480 DEG C, and the time of pouring is 8 minutes, the rotor field spider tensile strength >=500Mpa of casting,
Yield strength >=320Mpa, elongation percentage >=7%, hardness 170-320HBS, Oxygen potential >=90%, graphite size 5-8 level, pearlite
Content 10%-15%, cementite ＜ 3%.Can fully meet each of current domestic new-energy automobile driving motor rotor rack
Item performance indications requirement, is greatly improved working life and the reliability of rotor.
The invention has the beneficial effects as follows: steel scrap (Q235) and magnesium iron foundry returns accounting about 40% in casting technique of the present invention,
Improve the comprehensive utilization of waste and old resource, cast out high performance motor rotor rack simultaneously.The present invention drives at new-energy automobile
Dynamic motor rotor rack casting obtains good application, on the basis of making full use of waste and old resource, casts out high-performance
Motor rotor rack, save again substantial amounts of steel resource, be with a wide range of applications and social meaning.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Conjunction is specifically illustrating, and the present invention is expanded on further.
Embodiment 1
As it is shown in figure 1, one is applied to new-energy automobile drives motor rotor rack casting technique, concrete technology step is such as
Under:
(1) mainly there is the mulling after the heating-up temperature of roughing sand, addition resin according to the technological factor affecting precoated sand performance
Time, the mulling time etc. of addition firming agent, in order to obtain optimal technological parameter, need to be according to the size of the rotor field spider of casting
And performance requirement, each technological parameter affecting precoated sand performance is carried out orthogonal experiment, it is thus achieved that the molding ginseng that optimizes
Number.
The molding variables of this process is: precoated sand temperature 210 DEG C DEG C, and adding the mulling time after resin is 80 seconds, reinforces
The time that is blended after agent is 20 seconds, and adding the time that is blended after calcium stearate is 10 seconds.Then core shooter and precoated sand system are utilized
Make the upper die and lower die driving motor rotor rack.
(2) the composition hardening and tempering method of motor rotor rack molten casting iron is driven.
This technique major ingredient is taked by base iron (Q12) 60%, and steel scrap (Q235) 20% becomes with 20% foundry returns major ingredient ratio
Fractional melting.Utilize spectroanalysis instrument that the composition of molten casting iron is analyzed, analyze carbon, silicon, manganese, phosphorus, sulfur and the one-tenth of antimony element
Divide content whether in the scope shown in table 1 below；If analyze be found to have element not within the scope of, then appropriate by adding
Element silicon, manganese element, carburant, inovulant and nodulizer to carry out composition quenched, make composition meet each wanting shown in table 1
Ask.
(3) utilizing the high-precision motor rotor field spider upper die and lower die that the first step makes, technique uses rain type to pour, root
The performance impact analysis result to support according to placing temperature and time, this technique determines placing temperature 1420 DEG C, and the time of pouring is 8
Minute.
(4) after rotor field spider casting, cooling, cleaning polishing, carry out polish, all kinds of hole slot of car system, detection warehouse-in.
Embodiment 2
As it is shown in figure 1, one is applied to new-energy automobile drives motor rotor rack casting technique, concrete technology step is such as
Under:
(1) mainly there is the mulling after the heating-up temperature of roughing sand, addition resin according to the technological factor affecting precoated sand performance
Time, the mulling time etc. of addition firming agent, in order to obtain optimal technological parameter, need to be according to the size of the rotor field spider of casting
And performance requirement, each technological parameter affecting precoated sand performance is carried out orthogonal experiment, it is thus achieved that the molding ginseng that optimizes
Number.
The molding variables of this process is: precoated sand temperature 230 DEG C, and adding the mulling time after resin is 80 seconds, adds solidification
The time that is blended after agent is 20 seconds, and adding the time that is blended after calcium stearate is 10 seconds.Then core shooter and precoated sand manufacture are utilized
Drive the upper die and lower die of motor rotor rack.
(2) the composition hardening and tempering method of motor rotor rack molten casting iron is driven.
This technique major ingredient is taked by base iron (Q12) 60%, and steel scrap (Q235) 20% becomes with 20% foundry returns major ingredient ratio
Fractional melting.Utilize spectroanalysis instrument that the composition of molten casting iron is analyzed, analyze carbon, silicon, manganese, phosphorus, sulfur and the one-tenth of antimony element
Divide content whether in the scope shown in table 1 below；If analyze be found to have element not within the scope of, then appropriate by adding
Element silicon, manganese element, carburant, inovulant and nodulizer to carry out composition quenched, make composition meet each wanting shown in table 1
Ask.
(3) utilizing the high-precision motor rotor field spider upper die and lower die that the first step makes, technique uses rain type to pour, root
The performance impact analysis result to support according to placing temperature and time, this technique determines placing temperature 1480 DEG C, and the time of pouring is 8
Minute.
(4) after rotor field spider casting, cooling, cleaning polishing, carry out polish, all kinds of hole slot of car system, detection warehouse-in.
Embodiment 3
As it is shown in figure 1, one is applied to new-energy automobile drives motor rotor rack casting technique, concrete technology step is such as
Under:
(1) mainly there is the mulling after the heating-up temperature of roughing sand, addition resin according to the technological factor affecting precoated sand performance
Time, the mulling time etc. of addition firming agent, in order to obtain optimal technological parameter, need to be according to the size of the rotor field spider of casting
And performance requirement, each technological parameter affecting precoated sand performance is carried out orthogonal experiment, it is thus achieved that the molding ginseng that optimizes
Number.
The molding variables of this process is: precoated sand temperature 220 DEG C, and adding the mulling time after resin is 80 seconds, adds solidification
The time that is blended after agent is 20 seconds, and adding the time that is blended after calcium stearate is 10 seconds.Then core shooter and precoated sand manufacture are utilized
Drive the upper die and lower die of motor rotor rack.
(2) the composition hardening and tempering method of motor rotor rack molten casting iron is driven.
This technique major ingredient is taked by base iron (Q12) 60%, and steel scrap (Q235) 20% becomes with 20% foundry returns major ingredient ratio
Fractional melting.Utilize spectroanalysis instrument that the composition of molten casting iron is analyzed, analyze carbon, silicon, manganese, phosphorus, sulfur and the one-tenth of antimony element
Divide content whether in the scope shown in table 1 below；If analyze be found to have element not within the scope of, then appropriate by adding
Element silicon, manganese element, carburant, inovulant and nodulizer to carry out composition quenched, make composition meet each wanting shown in table 1
Ask.
(3) utilizing the high-precision motor rotor field spider upper die and lower die that the first step makes, technique uses rain type to pour, root
The performance impact analysis result to support according to placing temperature and time, this technique determines placing temperature 1450 DEG C, and the time of pouring is 8
Minute.
(4) after rotor field spider casting, cooling, cleaning polishing, carry out polish, all kinds of hole slot of car system, detection warehouse-in.
Table 1 molten casting iron micro element composition constitutes detail list
| Composition | Perfect condition scope (%) | Tolerance interval (%) |
| Carbon (C) | 3.65-3.70 | 3.60-3.75 |
| Silicon (Si) | 1.43-1.47 | 1.40-1.50 |
| Manganese (Mn) | ≤0.25 | ≤0.30 |
| Phosphorus (P) | ≤0.04 | ≤0.05 |
| Sulfur (S) | ≤0.015 | ≤0.025 |
| Antimony (Sb) | ≤0.030 | ≤0.035 |
Rotor field spider tensile strength >=the 500Mpa of this cast, yield strength >=320Mpa, elongation percentage >=7%, firmly
Degree 170-320HBS, Oxygen potential >=90%, graphite size 5-8 level, content of pearlite in alloy 10%-15%, cementite ＜ 3%.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (2)
1. one kind is applied to new-energy automobile driving motor rotor rack casting technique, it is characterised in that concrete technology step is such as
Under:
(1) original material cast takes by mass percentage: base iron 60%, steel scrap 20% and foundry returns 20% are as master
Material, will analyze carbon, silicon, manganese, phosphorus, sulfur and the component content of antimony element by spectroanalysis instrument after major ingredient melt processed, and passes through
Adding appropriate element silicon, manganese element, carburant, inovulant and nodulizer, to carry out composition quenched, makes composition meet GBT9941-
1991 standard-requireds；
(2) using core shooter and the precoated sand that intensity is 3.5-4.0Mpa to make high-precision rotor field spider upper and lower mould, rotor props up
Controlling precoated sand temperature 210 DEG C-230 DEG C in the patternmaking process of frame upper and lower mould, adding the mulling time after resin is 80 seconds, adds firming agent
After the time that is blended be 20 seconds, adding the time that is blended after calcium stearate is 10 seconds；
(3) using rain type to pour mode to pour, placing temperature is 1420 DEG C-1480 DEG C, and the time of pouring is 8 minutes；
(4) pour complete after cooling, to drive motor rotor rack polish, subsequently into finishing department, car system is each
Class hole slot, detection warehouse-in, i.e. obtain high-performance new-energy automobile and drive motor rotor rack.
One the most according to claim 1 is applied to new-energy automobile and drives motor rotor rack casting technique, its feature
It is, the driving motor rotor rack tensile strength >=500Mpa of above-mentioned casting, yield strength >=320Mpa, elongation percentage >=7%,
Hardness 170-320HBS, Oxygen potential >=90%, graphite size 5-8 level, content of pearlite in alloy 10%-15%, cementite ＜ 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402330.2A CN106077502A (en) | 2016-06-01 | 2016-06-01 | One is applied to new-energy automobile and drives motor rotor rack casting technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402330.2A CN106077502A (en) | 2016-06-01 | 2016-06-01 | One is applied to new-energy automobile and drives motor rotor rack casting technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106077502A true CN106077502A (en) | 2016-11-09 |
Family
ID=57229023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610402330.2A Pending CN106077502A (en) | 2016-06-01 | 2016-06-01 | One is applied to new-energy automobile and drives motor rotor rack casting technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106077502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042873A (en) * | 2021-11-03 | 2022-02-15 | 上海艾诺特殊钢铸造有限公司 | Casting process of paper machine rotor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418028A (en) * | 2011-12-12 | 2012-04-18 | 大丰市海纳机械有限公司 | Impeller special for automobile cooling water pump and casting process of impeller |
| CN103273011A (en) * | 2013-05-14 | 2013-09-04 | 繁昌县金科机电科技有限公司 | Production technology for thin-walled piston body |
| CN103341616A (en) * | 2013-06-25 | 2013-10-09 | 宁夏维尔铸造有限责任公司 | Retarder rotor casting process |
| CN103862000A (en) * | 2014-04-04 | 2014-06-18 | 江苏力源金河铸造有限公司 | Vertical parting horizontal pouring casting technology for end cover casting core shell |
| US20140262101A1 (en) * | 2013-03-13 | 2014-09-18 | Amsted Rail Company, Inc. | Forming a mold for steel casting |
| CN105441782A (en) * | 2014-09-28 | 2016-03-30 | 天津众达精密机械有限公司 | Ductile iron casting and manufacturing method thereof |
-
2016
- 2016-06-01 CN CN201610402330.2A patent/CN106077502A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418028A (en) * | 2011-12-12 | 2012-04-18 | 大丰市海纳机械有限公司 | Impeller special for automobile cooling water pump and casting process of impeller |
| US20140262101A1 (en) * | 2013-03-13 | 2014-09-18 | Amsted Rail Company, Inc. | Forming a mold for steel casting |
| CN103273011A (en) * | 2013-05-14 | 2013-09-04 | 繁昌县金科机电科技有限公司 | Production technology for thin-walled piston body |
| CN103341616A (en) * | 2013-06-25 | 2013-10-09 | 宁夏维尔铸造有限责任公司 | Retarder rotor casting process |
| CN103862000A (en) * | 2014-04-04 | 2014-06-18 | 江苏力源金河铸造有限公司 | Vertical parting horizontal pouring casting technology for end cover casting core shell |
| CN105441782A (en) * | 2014-09-28 | 2016-03-30 | 天津众达精密机械有限公司 | Ductile iron casting and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 梁春永等: "覆膜砂工艺参数优化的研究", 《中国铸造装备与技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042873A (en) * | 2021-11-03 | 2022-02-15 | 上海艾诺特殊钢铸造有限公司 | Casting process of paper machine rotor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101445853B (en) | Method for casting elevator as-cast ball iron towing pulley | |
| CN100453682C (en) | Wear-resistant hammer head and its manufacturing process | |
| CN101585075B (en) | Sand-faced metal mould casting method for manufacturing aerogenerator mainshaft by ductile cast iron | |
| CN108004460A (en) | A kind of high-intensity and high-tenacity as cast condition QT800-5 spheroidal graphite cast-iron and its production method | |
| CN101585078A (en) | Method for casting as-cast high-tenacity cast iron bearing cover of locomotive | |
| CN102477507A (en) | Preparation method of aluminum alloy casting rod special for hub of load truck | |
| CN104004960B (en) | A kind of low chromium vanadium titanium cast iron abrading-ball and preparation method thereof | |
| CN105457722B (en) | Double metal composite wear-resistant liner production method | |
| CN106367671A (en) | Nodular cast iron edging roll suitable for universal rolling mill and manufacturing method thereof | |
| CN101823139B (en) | Casting method of low-alloy hydraulic pump stator casting | |
| CN102189245A (en) | Lost foam casting technological method for casting double-metal double-liquid composite crusher hammer | |
| CN105033227A (en) | Manufacturing method for high-vanadium high-speed steel composite roll | |
| CN101805868A (en) | Method for smelting thin-wall ductile iron gearbox | |
| CN103752771A (en) | Manufacturing method for lost foam casting of high-chrome agitator blade | |
| CN112695242A (en) | Cogging roll and preparation method thereof | |
| WO2020163707A1 (en) | Aluminum alloys for structural high pressure vacuum die casting applications | |
| CN105154760B (en) | A kind of truck hub ductile cast iron material and preparation method thereof | |
| CN106077502A (en) | One is applied to new-energy automobile and drives motor rotor rack casting technique | |
| CN106734895A (en) | Casting technique for casting motorcycle wearing piece | |
| CN102994857A (en) | Technology for producing ductile iron flange | |
| CN104911500B (en) | Manufacturing method of low-temperature wear-resistant carriage | |
| CN105695856A (en) | Nodular cast iron for high-toughness driving axle housing of high-end load-bearing forklift and production method thereof | |
| CN105039837B (en) | Micro-alloying high-oxidation-resistance gray iron and preparation method thereof | |
| CN105838974A (en) | Heavy section ductile iron for mine bridges and production method thereof | |
| CN104250702A (en) | Wear-resisting steel ball and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |