CN105821186A - Quenching oil for gear shift connection rod - Google Patents
Quenching oil for gear shift connection rod Download PDFInfo
- Publication number
- CN105821186A CN105821186A CN201610290878.2A CN201610290878A CN105821186A CN 105821186 A CN105821186 A CN 105821186A CN 201610290878 A CN201610290878 A CN 201610290878A CN 105821186 A CN105821186 A CN 105821186A
- Authority
- CN
- China
- Prior art keywords
- parts
- oil
- base
- methyl ester
- quenching oil
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/58—Oils
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Lubricants (AREA)
Abstract
The invention discloses quenching oil for a gear shift connection rod. The quenching oil is prepared from the following raw materials in parts by weight: 65-75 parts of 150N Group II base oil, 2-5 parts of high molecular weight succinimide, 10-15 parts of palm wax, 35-40 parts of refined paraffin base mineral oil, 2-3 parts of sulfide base phenol, 2-3 parts of dimethylmethane petroleum asphalt resin, 4-5 parts of epoxidation castor oil, 1-2 parts of alkylene polyether and 3-8 parts of modified antioxygen. By adopting the quenching oil, the internal crystalline phase density of metal can be reinforced, and lattice deformation torsion resistance is improved, so that metal strength is obviously improved; the tensile property and tangential stress resistance of the manufactured gear shift connection rod are greatly improved; and the service life of the connection rod is greatly prolonged.
Description
Technical field
The present invention relates to technical field of heat treatment, be specifically related to a kind of gearshift connecting rod quenching oil.
Background technology
Thermo-chemical treatment is that just metal or alloy workpiece is placed in the active medium of uniform temperature insulation, makes
One or more elements penetrate into its top layer, to change the heat treatment work of its chemical composition, tissue and performance
Skill.Thermo-chemical treatment utilize chemical reaction, sometimes dual-purpose physical method change steel part top layer chemical composition and
Organizational structure, in order to obtain the metal heating processing technology than homogeneous material superior technique economic benefit.By
In the inefficacy of machine components with destroy great majority and all sprout at surface layer, abrasion, tired may caused especially
The part worked under the conditions of labor, metal erosion, oxidation etc., the performance of surface layer is particularly important.
Through the steel-iron components of thermo-chemical treatment, need through quenching cooling, i.e. under high temperature red heat state,
Austenite structure quickly immerses in the hardening media (oily) with suitable rate of cooling, could realize zero
Part reaches the every comprehensive mechanical performance needed, and is transformed into martensite from austenite structure, and part does not has
There is cracking and keep the least deformation.
Quenching oil should nontoxic, tasteless, disposable, environmentally safe, and make the surface of the work after quenching
Light.The shortcoming of existing quenching oil: during quenching, oil temperature can instantaneous rising, if oil flash with
Burning-point is relatively low, it may occur however that Ignition Phenomena；Excessive water branch in oil product affects the thermal treatment quality of part,
Cause part soft spots, hardening crack or deformation, it is also possible to cause oil product to splash, have an accident；The steam blanket stage
Time is the longest, and after causing parts quenching cooling: inhomogeneous cooling is even, part each position soft or hard is uneven,
Quenching distortion is bigger；And part does not reaches every mechanical performance of requirement after quenching；Quenching oil useful life
Short.Both at home and abroad currently without special gearshift connecting rod quenching special quenching oil.
Summary of the invention
The technical problem to be solved is to provide a kind of gearshift connecting rod quenching oil.
The technical problem to be solved realizes by the following technical solutions:
A kind of gearshift connecting rod quenching oil, it is made up of the raw material of following weight portion: 150N bis-class base oil
65-75 part, high molecular succimide 2-5 part, palm wax 10-15 part, refined paraffin wax base mineral oil
35-40 part, thioether group phenol 2-3 part, propane asphalt resin 2-3 part, epoxidized castor oil 4-5 part,
Alkylene polyethers 1-2 part, modified antioxidant 3-8 part；
Described modified antioxidant is prepared by the raw materials in:
Dinonylnaphthalene sulfonic acid calcium 0.5-1 part, poly alkylene glycol 2-5 part, alkylation phenyl-a-naphthylamine 2-5
Part, glycerol acrylate 6-10 part, pentaerythritol oleate 6-10 part, dicarboxylic acids fat 1-2 part, amido
Bamic acid methyl ester 1-2 part, 3-alkoxyl four alkylidene sulfone 0.05-0.1 part, diamine base bamic acid methyl ester
0.2-0.35 part, three monooctyl ester 0.2-0.35 parts, sub-support group hindered phenol 6-15 part；
The preparation method of described modified antioxidant is:
Pressurize in dinonylnaphthalene sulfonic acid calcium, poly alkylene glycol, sub-support group hindered phenol are added pressure vessel
To 3-5MPa, in 1h, then it is forced into normal pressure, opens container and add glycerol acrylate, oleic acid season
Doutrate, dicarboxylic acids fat, amido bamic acid methyl ester, diamine base bamic acid methyl ester, three monooctyl esters,
It is heated to 60-65 DEG C, heats while stirring uniformly, keep temperature 60-65 DEG C after 10 minutes, to add alkylation
Phenyl-a-naphthylamine, 3-alkoxyl four alkylidene sulfone, then utilize the blender at 800-1000 rev/min
Under mix thoroughly.
The preparation method of a kind of connecting rod quenching oil of shifting gears, comprises the steps:
(1) 150N bis-class base oil, refined paraffin wax base mineral oil, epoxidized castor oil are added reactor,
It is then placed in 2 DEG C of freezer preservation 20min, is then heated to 60-75 DEG C, add high molecular succinyl sub-
Amine, palm wax, mix homogeneously, standby；
(2) step (1) gained material is added thioether group phenol, propane asphalt resin, alkylene
Polyethers, mix homogeneously, standby；
(3) step (2) gained material is heated to 85 DEG C, and is incubated 10min, be subsequently adding modified anti-
Oxygen agent, mix homogeneously, then filter and i.e. obtain this product.
The invention has the beneficial effects as follows: quenching oil of the present invention can strengthen metal inside crystalline phase consistency, improve
Distortion of lattice torsion resistance so that metal strength is significantly improved, the gearshift connecting rod pull resistance produced
And anti-cut can be greatly improved to stress performance, substantially prolongs connecting rod service life.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be readily apparent from
Solve, below in conjunction with specific embodiment, the present invention is expanded on further.
Embodiment 1
A kind of gearshift connecting rod quenching oil, it is made up of the raw material of following weight portion: 150N bis-class base oil
70 parts, high molecular succimide 4 parts, palm wax 12 parts, 38 parts of refined paraffin wax base mineral oil, thioether
2 parts of base phenol, propane asphalt resin 2 parts, epoxidized castor oil 4 parts, alkylene polyethers 1 part, modification resist
Oxygen agent 5 parts；
Described modified antioxidant is prepared by the raw materials in:
Dinonylnaphthalene sulfonic acid calcium 0.8 part, poly alkylene glycol 3 parts, alkylation phenyl-a-naphthylamine 3 parts, third
Olefin(e) acid glyceride 8 parts, pentaerythritol oleate 8 parts, 1 part of dicarboxylic acids fat, amido bamic acid methyl ester 1
Part, 3-alkoxyl four alkylidene sulfone 0.08 part, diamine base bamic acid methyl ester 0.3 part, three monooctyl ester 0.3 part,
Sub-support group hindered phenol 10 parts；
The preparation method of described modified antioxidant is:
Pressurize in dinonylnaphthalene sulfonic acid calcium, poly alkylene glycol, sub-support group hindered phenol are added pressure vessel
To 3-5MPa, in 1h, then it is forced into normal pressure, opens container and add glycerol acrylate, oleic acid season
Doutrate, dicarboxylic acids fat, amido bamic acid methyl ester, diamine base bamic acid methyl ester, three monooctyl esters,
It is heated to 60-65 DEG C, heats while stirring uniformly, keep temperature 60-65 DEG C after 10 minutes, to add alkylation
Phenyl-a-naphthylamine, 3-alkoxyl four alkylidene sulfone, then utilize the blender at 800-1000 rev/min
Under mix thoroughly.
The preparation method of a kind of connecting rod quenching oil of shifting gears, comprises the steps:
(1) 150N bis-class base oil, refined paraffin wax base mineral oil, epoxidized castor oil are added reactor,
It is then placed in 2 DEG C of freezer preservation 20min, is then heated to 60-75 DEG C, add high molecular succinyl sub-
Amine, palm wax, mix homogeneously, standby；
(2) step (1) gained material is added thioether group phenol, propane asphalt resin, alkylene
Polyethers, mix homogeneously, standby；
(3) step (2) gained material is heated to 85 DEG C, and is incubated 10min, be subsequently adding modified anti-
Oxygen agent, mix homogeneously, then filter and i.e. obtain this product.
Embodiment 2
A kind of gearshift connecting rod quenching oil, it is made up of the raw material of following weight portion: 150N bis-class base oil
65 parts, high molecular succimide 2 parts, palm wax 10 parts, 35 parts of refined paraffin wax base mineral oil, thioether
2 parts of base phenol, propane asphalt resin 2 parts, epoxidized castor oil 4 parts, alkylene polyethers 1 part, modification resist
Oxygen agent 3 parts；
Described modified antioxidant is prepared by the raw materials in:
Dinonylnaphthalene sulfonic acid calcium 0.5 part, poly alkylene glycol 2 parts, alkylation phenyl-a-naphthylamine 2 parts, third
Olefin(e) acid glyceride 6 parts, pentaerythritol oleate 6 parts, 1 part of dicarboxylic acids fat, amido bamic acid methyl ester 1
Part, 3-alkoxyl four alkylidene sulfone 0.05 part, diamine base bamic acid methyl ester 0.2 part, three monooctyl ester 0.2 part,
Sub-support group hindered phenol 6 parts；
The preparation method of described modified antioxidant is:
Pressurize in dinonylnaphthalene sulfonic acid calcium, poly alkylene glycol, sub-support group hindered phenol are added pressure vessel
To 3-5MPa, in 1h, then it is forced into normal pressure, opens container and add glycerol acrylate, oleic acid season
Doutrate, dicarboxylic acids fat, amido bamic acid methyl ester, diamine base bamic acid methyl ester, three monooctyl esters,
It is heated to 60-65 DEG C, heats while stirring uniformly, keep temperature 60-65 DEG C after 10 minutes, to add alkylation
Phenyl-a-naphthylamine, 3-alkoxyl four alkylidene sulfone, then utilize the blender at 800-1000 rev/min
Under mix thoroughly.
The preparation method of a kind of connecting rod quenching oil of shifting gears, comprises the steps:
(1) 150N bis-class base oil, refined paraffin wax base mineral oil, epoxidized castor oil are added reactor,
It is then placed in 2 DEG C of freezer preservation 20min, is then heated to 60-75 DEG C, add high molecular succinyl sub-
Amine, palm wax, mix homogeneously, standby；
(2) step (1) gained material is added thioether group phenol, propane asphalt resin, alkylene
Polyethers, mix homogeneously, standby；
(3) step (2) gained material is heated to 85 DEG C, and is incubated 10min, be subsequently adding modified anti-
Oxygen agent, mix homogeneously, then filter and i.e. obtain this product.
Embodiment 3
A kind of gearshift connecting rod quenching oil, it is made up of the raw material of following weight portion: 150N bis-class base oil
75 parts, high molecular succimide 5 parts, palm wax 15 parts, 40 parts of refined paraffin wax base mineral oil, thioether
3 parts of base phenol, propane asphalt resin 3 parts, epoxidized castor oil 5 parts, alkylene polyethers 2 parts, modification resist
Oxygen agent 8 parts；
Described modified antioxidant is prepared by the raw materials in:
Dinonylnaphthalene sulfonic acid calcium 1 part, poly alkylene glycol 5 parts, alkylation phenyl-a-naphthylamine 5 parts, propylene
Acid glyceride 10 parts, pentaerythritol oleate 10 parts, 2 parts of dicarboxylic acids fat, amido bamic acid methyl ester 2
Part, 3-alkoxyl four alkylidene sulfone 0.1 part, diamine base bamic acid methyl ester 0.35 part, three monooctyl ester 0.35 part,
Sub-support group hindered phenol 15 parts；
The preparation method of described modified antioxidant is:
Pressurize in dinonylnaphthalene sulfonic acid calcium, poly alkylene glycol, sub-support group hindered phenol are added pressure vessel
To 3-5MPa, in 1h, then it is forced into normal pressure, opens container and add glycerol acrylate, oleic acid season
Doutrate, dicarboxylic acids fat, amido bamic acid methyl ester, diamine base bamic acid methyl ester, three monooctyl esters,
It is heated to 60-65 DEG C, heats while stirring uniformly, keep temperature 60-65 DEG C after 10 minutes, to add alkylation
Phenyl-a-naphthylamine, 3-alkoxyl four alkylidene sulfone, then utilize the blender at 800-1000 rev/min
Under mix thoroughly.
The preparation method of a kind of connecting rod quenching oil of shifting gears, comprises the steps:
(1) 150N bis-class base oil, refined paraffin wax base mineral oil, epoxidized castor oil are added reactor,
It is then placed in 2 DEG C of freezer preservation 20min, is then heated to 60-75 DEG C, add high molecular succinyl sub-
Amine, palm wax, mix homogeneously, standby；
(2) step (1) gained material is added thioether group phenol, propane asphalt resin, alkylene
Polyethers, mix homogeneously, standby；
(3) step (2) gained material is heated to 85 DEG C, and is incubated 10min, be subsequently adding modified anti-
Oxygen agent, mix homogeneously, then filter and i.e. obtain this product.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, the present invention is not restricted to the described embodiments, above-described embodiment and explanation
The principle that the present invention is simply described described in book, without departing from the spirit and scope of the present invention,
The present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention model
In enclosing.Claimed scope is defined by appending claims and equivalent thereof.
Claims (2)
1. a gearshift connecting rod quenching oil, it is characterised in that it is made up of the raw material of following weight portion:
150N bis-class base oil 65-75 part, high molecular succimide 2-5 part, palm wax 10-15 part, refined
Paraffin base mineral oil 35-40 part, thioether group phenol 2-3 part, propane asphalt resin 2-3 part, epoxidation castor
Oleum Sesami 4-5 part, alkylene polyethers 1-2 part, modified antioxidant 3-8 part；
Described modified antioxidant is prepared by the raw materials in:
Dinonylnaphthalene sulfonic acid calcium 0.5-1 part, poly alkylene glycol 2-5 part, alkylation phenyl-a-naphthylamine 2-5
Part, glycerol acrylate 6-10 part, pentaerythritol oleate 6-10 part, dicarboxylic acids fat 1-2 part, amido
Bamic acid methyl ester 1-2 part, 3-alkoxyl four alkylidene sulfone 0.05-0.1 part, diamine base bamic acid methyl ester
0.2-0.35 part, three monooctyl ester 0.2-0.35 parts, sub-support group hindered phenol 6-15 part；
The preparation method of described modified antioxidant is:
Pressurize in dinonylnaphthalene sulfonic acid calcium, poly alkylene glycol, sub-support group hindered phenol are added pressure vessel
To 3-5MPa, in 1h, then it is forced into normal pressure, opens container and add glycerol acrylate, oleic acid season
Doutrate, dicarboxylic acids fat, amido bamic acid methyl ester, diamine base bamic acid methyl ester, three monooctyl esters,
It is heated to 60-65 DEG C, heats while stirring uniformly, keep temperature 60-65 DEG C after 10 minutes, to add alkylation
Phenyl-a-naphthylamine, 3-alkoxyl four alkylidene sulfone, then utilize the blender at 800-1000 rev/min
Under mix thoroughly.
The preparation method of a kind of connecting rod quenching oil of shifting gears the most according to claim 1, its feature exists
In, comprise the steps:
(1) 150N bis-class base oil, refined paraffin wax base mineral oil, epoxidized castor oil are added reactor,
It is then placed in 2 DEG C of freezer preservation 20min, is then heated to 60-75 DEG C, add high molecular succinyl sub-
Amine, palm wax, mix homogeneously, standby；
(2) step (1) gained material is added thioether group phenol, propane asphalt resin, alkylene
Polyethers, mix homogeneously, standby；
(3) step (2) gained material is heated to 85 DEG C, and is incubated 10min, be subsequently adding modified anti-
Oxygen agent, mix homogeneously, then filter and i.e. obtain this product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290878.2A CN105821186A (en) | 2016-04-28 | 2016-04-28 | Quenching oil for gear shift connection rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290878.2A CN105821186A (en) | 2016-04-28 | 2016-04-28 | Quenching oil for gear shift connection rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105821186A true CN105821186A (en) | 2016-08-03 |
Family
ID=56528133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610290878.2A Pending CN105821186A (en) | 2016-04-28 | 2016-04-28 | Quenching oil for gear shift connection rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105821186A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108559823A (en) * | 2018-05-18 | 2018-09-21 | 山东高强紧固件有限公司 | A kind of standard component quenching coolant liquid |
| WO2019006660A1 (en) * | 2017-07-04 | 2019-01-10 | 江苏鑫露新材料股份有限公司 | Overspeed quenching oil composition having excellent cooling rate stability, and preparation method therefor |
| CN110029209A (en) * | 2019-04-17 | 2019-07-19 | 南宁学院 | The surface treatment method of metal material |
| WO2023008545A1 (en) * | 2021-07-30 | 2023-02-02 | 出光興産株式会社 | Heat-treatment oil composition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066293A (en) * | 1992-05-25 | 1992-11-18 | 中国石油化工总公司大连石油化工公司 | Quick quenching oil compound |
| CN102140570A (en) * | 2011-03-14 | 2011-08-03 | 常州龙邦润滑油有限公司 | Quenching oil for bearings and preparation method thereof |
| CN102392110A (en) * | 2011-11-02 | 2012-03-28 | 天津市中川润滑油有限公司 | Novel over-speed bright quenching oil composition and preparation method thereof |
| CN103710083A (en) * | 2013-10-09 | 2014-04-09 | 中国石油化工股份有限公司 | Isothermal graded quenching oil composition and uses thereof |
-
2016
- 2016-04-28 CN CN201610290878.2A patent/CN105821186A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066293A (en) * | 1992-05-25 | 1992-11-18 | 中国石油化工总公司大连石油化工公司 | Quick quenching oil compound |
| CN102140570A (en) * | 2011-03-14 | 2011-08-03 | 常州龙邦润滑油有限公司 | Quenching oil for bearings and preparation method thereof |
| CN102392110A (en) * | 2011-11-02 | 2012-03-28 | 天津市中川润滑油有限公司 | Novel over-speed bright quenching oil composition and preparation method thereof |
| CN103710083A (en) * | 2013-10-09 | 2014-04-09 | 中国石油化工股份有限公司 | Isothermal graded quenching oil composition and uses thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006660A1 (en) * | 2017-07-04 | 2019-01-10 | 江苏鑫露新材料股份有限公司 | Overspeed quenching oil composition having excellent cooling rate stability, and preparation method therefor |
| CN108559823A (en) * | 2018-05-18 | 2018-09-21 | 山东高强紧固件有限公司 | A kind of standard component quenching coolant liquid |
| CN110029209A (en) * | 2019-04-17 | 2019-07-19 | 南宁学院 | The surface treatment method of metal material |
| WO2023008545A1 (en) * | 2021-07-30 | 2023-02-02 | 出光興産株式会社 | Heat-treatment oil composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105821186A (en) | Quenching oil for gear shift connection rod | |
| CN105132820B (en) | High-strength martensite stainless steel plate and production method thereof | |
| CN108251759B (en) | The martensitic stain less steel and its manufacturing method of reversed austenite toughening | |
| JP6118625B2 (en) | Manufacturing method of press mold | |
| CN101660105B (en) | High-strength extra-thick quenched and tempered steel plate with good obdurability matching and manufacturing method thereof | |
| CN105420454A (en) | Heat treatment method for large heat-resisting high alloy steel castings | |
| CN112496289B (en) | Solid-liquid bimetal wear-resistant anti-corrosion pumping pipeline and preparation method thereof | |
| CN102719757A (en) | Nickel-free high-toughness 80kg-grade high-strength steel and manufacturing method thereof | |
| CN1202533A (en) | High strength high toughness steel for mooring chain and production method of mooring chain | |
| CN104975150B (en) | A kind of preparation method of steel alloy quenching oil | |
| CN101603154A (en) | New material of hot perforation top head of steel pipe | |
| GB2461351A (en) | Process for Producing Components made from Austenitic-ferritic Cast Iron and such Components | |
| CN1824431A (en) | Smelting technology of centrifugal casting austenic stainless steel large culiber thick wall nulear main pipeline straight pipe | |
| CN102409246B (en) | Bainite cylinder jacket lining and preparation method thereof | |
| CN105969957A (en) | Quenching oil capable of making fastener become black by itself after quenching and application method of quenching oil | |
| CN105886082A (en) | Quenching oil for crank shaft | |
| CN114150260A (en) | Laser surface carburizing method for low-carbon steel | |
| CN103317302B (en) | Kitchen knife blade manufacturing process | |
| CN103667859A (en) | Multi-component low-melting-point fine-grain non-net medium-chromium cast iron and preparation method thereof | |
| CN114000035A (en) | Production method of atmospheric corrosion resistant high-strength extra-thick Q390GNH steel plate | |
| CN103111737A (en) | R5 mooring chain end ring flash butt welding process | |
| CN105950842A (en) | Quenching oil for bearing end caps | |
| CN105821187A (en) | Low-volatility quenching oil | |
| US20150043854A1 (en) | Method and Component | |
| Lehnert et al. | New developments in heavy plates for offshore structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |