CN110078475A - 一种耐腐蚀耐磨损的陶瓷制作工艺 - Google Patents

一种耐腐蚀耐磨损的陶瓷制作工艺 Download PDF

Info

Publication number
CN110078475A
CN110078475A CN201910387189.7A CN201910387189A CN110078475A CN 110078475 A CN110078475 A CN 110078475A CN 201910387189 A CN201910387189 A CN 201910387189A CN 110078475 A CN110078475 A CN 110078475A
Authority
CN
China
Prior art keywords
parts
wear
ceramic
blank
raw material
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
Application number
CN201910387189.7A
Other languages
English (en)
Inventor
杨丽珠
陆沁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Industrial Park Institute of Vocational Technology
Original Assignee
Suzhou Industrial Park Institute of Vocational Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Industrial Park Institute of Vocational Technology filed Critical Suzhou Industrial Park Institute of Vocational Technology
Priority to CN201910387189.7A priority Critical patent/CN110078475A/zh
Publication of CN110078475A publication Critical patent/CN110078475A/zh
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/04—Clay; Kaolin
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/16—Lean materials, e.g. grog, quartz
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/36—Reinforced clay-wares
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/386—Boron nitrides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5248—Carbon, e.g. graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

本发明公开了一种耐腐蚀耐磨损的陶瓷制作工艺，包括：原料挑选和混合、制浆、加热、冷却等步骤。通过上述方式，本发明一种耐腐蚀耐磨损的陶瓷制作工艺，不仅可以节省操作时间、降低操作的难度，而且可以大大的提高陶瓷耐磨耐腐蚀的能力，提高陶瓷的实用性。

Description

一种耐腐蚀耐磨损的陶瓷制作工艺
技术领域
本发明涉及陶瓷制备方法领域，特别是涉及一种耐腐蚀耐磨损的陶瓷制作工艺。
背景技术
陶瓷，是用陶土烧制的器皿叫陶器，用瓷土烧制的器皿叫瓷器。陶瓷则是陶器，炻器和瓷器的总称。古人称陶瓷为瓯。凡是用陶土和瓷土这两种不同性质的粘土为原料，经过配料、成型、干燥、焙烧等工艺流程制成的器物都可以叫陶瓷。
发明内容
本发明主要解决的技术问题是提供一种耐腐蚀耐磨损的陶瓷制作工艺，具有可靠性能高、耐磨性好等优点，同时在陶瓷制备方法的应用及普及上有着广泛的市场前景。
为解决上述技术问题，本发明采用的一个技术方案是：
提供一种耐腐蚀耐磨损的陶瓷制作工艺，其步骤包括：
1）按照如下的成分和质量分数混合成陶瓷原料：粘土76-88份、石英34-42份、长石22-29份、蛋白石18-23份、氧化锌17-25份、二氧化钛23-30份、氧化锆5-9份、氮化硼15-20份、碳纤维9-14份；
2）将陶瓷原料进行粉碎、研磨和筛分；
3）将原料粉末与水按照1:5的重量比混合成浆料，在混合的时候不断的进行搅拌，搅拌均匀后静置8-12天；
4）对浆料加热熔融，并将熔融后的浆料注入到成型模具中，然后对模具中的坯料进行快速降温使得坯料冷凝成型；
5）将成型后的坯料放在90-95℃的环境下进行干燥，直至坯料中的含水量低于2.3%。
在本发明一个较佳实施例中，过筛后的原料粉末的粒径小于1150目。
在本发明一个较佳实施例中，所述陶瓷的成分和质量分数包括粘土82份、石英37份、长石26份、蛋白石19份、氧化锌18份份、二氧化钛28份份、氧化锆7份、氮化硼16份、碳纤维10份。
本发明的有益效果是：不仅可以节省操作时间、降低操作的难度，而且可以大大的提高陶瓷耐磨耐腐蚀的能力，提高陶瓷的实用性。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
本发明实施例包括：
具体实施例一
一种耐腐蚀耐磨损的陶瓷制作工艺，其步骤包括：
1）按照如下的成分和质量分数混合成陶瓷原料：所述陶瓷的成分和质量分数包括粘土82份、石英37份、长石26份、蛋白石19份、氧化锌18份、二氧化钛28份、氧化锆7份、氮化硼16份、碳纤维10份；
2）将陶瓷原料进行粉碎、研磨和筛分，过筛后的原料粉末的粒径小于800目；
3）将原料粉末与水按照1:5的重量比混合成浆料，在混合的时候不断的进行搅拌，搅拌均匀后静置8-12天；
4）对浆料加热熔融，并将熔融后的浆料注入到成型模具中，然后对模具中的坯料进行快速降温使得坯料冷凝成型；
5）将成型后的坯料放在90-95℃的环境下进行干燥，直至坯料中的含水量低于2.3%。
具体实施例二
一种耐腐蚀耐磨损的陶瓷制作工艺，其步骤包括：
1）按照如下的成分和质量分数混合成陶瓷原料：粘土79份、石英41份、长石26份、蛋白石21份、氧化锌22份、二氧化钛28份、氧化锆8份、氮化硼17份、碳纤维11份；
2）将陶瓷原料进行粉碎、研磨和筛分，过筛后的原料粉末的粒径小于1150目；
3）将原料粉末与水按照1:5的重量比混合成浆料，在混合的时候不断的进行搅拌，搅拌均匀后静置8-12天；
4）对浆料加热熔融，并将熔融后的浆料注入到成型模具中，然后对模具中的坯料进行快速降温使得坯料冷凝成型；
5）将成型后的坯料放在90-95℃的环境下进行干燥，直至坯料中的含水量低于2.3%。
本发明一种耐腐蚀耐磨损的陶瓷制作工艺的有益效果是：不仅可以节省操作时间、降低操作的难度，而且可以大大的提高陶瓷耐磨耐腐蚀的能力，提高陶瓷的实用性。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (3)

1.一种耐腐蚀耐磨损的陶瓷制作工艺，其特征在于，其步骤包括：
1）按照如下的成分和质量分数混合成陶瓷原料：粘土76-88份、石英34-42份、长石22-29份、蛋白石18-23份、氧化锌17-25份、二氧化钛23-30份、氧化锆5-9份、氮化硼15-20份、碳纤维9-14份；
2）将陶瓷原料进行粉碎、研磨和筛分；
3）将原料粉末与水按照1:5的重量比混合成浆料，在混合的时候不断的进行搅拌，搅拌均匀后静置8-12天；
4）对浆料加热熔融，并将熔融后的浆料注入到成型模具中，然后对模具中的坯料进行快速降温使得坯料冷凝成型；
5）将成型后的坯料放在90-95℃的环境下进行干燥，直至坯料中的含水量低于2.3%。
2.根据权利要求1所述的一种耐腐蚀耐磨损的陶瓷制作工艺，其特征在于，过筛后的原料粉末的粒径小于1150目。
3.根据权利要求1所述的一种耐腐蚀耐磨损的陶瓷制作工艺，其特征在于，所述陶瓷的成分和质量分数包括粘土82份、石英37份、长石26份、蛋白石19份、氧化锌18份份、二氧化钛28份份、氧化锆7份、氮化硼16份、碳纤维10份。
CN201910387189.7A 2019-05-10 2019-05-10 一种耐腐蚀耐磨损的陶瓷制作工艺 Pending CN110078475A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910387189.7A CN110078475A (zh) 2019-05-10 2019-05-10 一种耐腐蚀耐磨损的陶瓷制作工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910387189.7A CN110078475A (zh) 2019-05-10 2019-05-10 一种耐腐蚀耐磨损的陶瓷制作工艺

Publications (1)

Publication Number Publication Date
CN110078475A true CN110078475A (zh) 2019-08-02

Family

ID=67419507

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910387189.7A Pending CN110078475A (zh) 2019-05-10 2019-05-10 一种耐腐蚀耐磨损的陶瓷制作工艺

Country Status (1)

Country Link
CN (1) CN110078475A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110698187A (zh) * 2019-11-26 2020-01-17 衡阳阳光陶瓷有限公司 一种避免粉末高温黏合的陶瓷加工工艺
CN110981423A (zh) * 2019-12-21 2020-04-10 德州市乐华陶瓷洁具有限公司 陶瓷原料纯净水制浆工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1096019A (zh) * 1994-04-12 1994-12-07 南京化工学院陶瓷厂 陶瓷微珠及其制造方法
EP1594815A2 (en) * 2003-02-05 2005-11-16 3M Innovative Properties Company Methods of making ceramics
CN103739199A (zh) * 2013-12-17 2014-04-23 佛山市粤峤陶瓷技术创新服务中心 一种防静电玻璃熔块的制造方法
CN105967652A (zh) * 2016-05-17 2016-09-28 岑溪市新建球陶瓷有限公司 耐酸瓷砖的制备方法
CN107522466A (zh) * 2017-09-23 2017-12-29 无锡工艺职业技术学院 一种耐热耐压的陶瓷材料配方
CN108585502A (zh) * 2018-05-16 2018-09-28 苏州工业园区职业技术学院 一种耐腐蚀面釉及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1096019A (zh) * 1994-04-12 1994-12-07 南京化工学院陶瓷厂 陶瓷微珠及其制造方法
EP1594815A2 (en) * 2003-02-05 2005-11-16 3M Innovative Properties Company Methods of making ceramics
CN103739199A (zh) * 2013-12-17 2014-04-23 佛山市粤峤陶瓷技术创新服务中心 一种防静电玻璃熔块的制造方法
CN105967652A (zh) * 2016-05-17 2016-09-28 岑溪市新建球陶瓷有限公司 耐酸瓷砖的制备方法
CN107522466A (zh) * 2017-09-23 2017-12-29 无锡工艺职业技术学院 一种耐热耐压的陶瓷材料配方
CN108585502A (zh) * 2018-05-16 2018-09-28 苏州工业园区职业技术学院 一种耐腐蚀面釉及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110698187A (zh) * 2019-11-26 2020-01-17 衡阳阳光陶瓷有限公司 一种避免粉末高温黏合的陶瓷加工工艺
CN110981423A (zh) * 2019-12-21 2020-04-10 德州市乐华陶瓷洁具有限公司 陶瓷原料纯净水制浆工艺

Similar Documents

Publication Publication Date Title
CN107226691B (zh) 一种绿色窑变流釉陶瓷制品及其制作工艺
CN107188530B (zh) 一种低成本高性能低膨胀陶瓷坯料及其陶瓷产品的制备方法
CN109020528B (zh) 一种低温高耐热全瓷及其制备方法
CN104909780B (zh) 一种高铝质耐火涂抹料
CN110041045A (zh) 具有耐高温性的高白度陶瓷制品及其制备方法
CN110078475A (zh) 一种耐腐蚀耐磨损的陶瓷制作工艺
CN108640654B (zh) 耐热陶瓷制品及其制备方法
CN106336200B (zh) 一种无机纤维增韧耐火材料及其制备工艺
CN109053137A (zh) 红土釉下彩工艺瓷及其制备方法
CN106082990A (zh) 一种教学用陶瓷及其制备方法
CN105060859A (zh) 一种遗体骨灰处理方法及其制品
CN112759361A (zh) 一种高硅质高温强化日用瓷及其制备方法
CN106588001A (zh) 一种高性能陶瓷材料及其制备方法
CN106336227B (zh) 一种矿产废弃物耐火材料及其制备工艺
CN107162620A (zh) 一种海泡石纳米纤维强化的贝壳陶瓷坯料及其制备方法
CN104926332B (zh) 一种刚玉质耐火涂抹料
CN106807898A (zh) 高透气性发热保温冒口及其制备方法
CN108911511A (zh) 一种不易开裂陶瓷的制釉方法
CN108892519A (zh) 一种耐火材料及其制备方法
CN108395103B (zh) 一种利用白云鄂博尾矿和粉煤灰制备的体析晶α堇青石微晶玻璃及其制备方法
CN106082960A (zh) 一种用于制备陶瓷高压注浆用泥浆的组合物及其使用该组合物制备而成的泥浆
CN110156481A (zh) 利用熔模铸造废砂制备的耐火材料及耐火材料的制备方法
CN110423104A (zh) 一种氧化铝空心球砖及其制备方法
CN109279907A (zh) 一种骨质瓷及其生产工艺
CN109627033A (zh) 一种隔热日用陶瓷制品及其制备方法

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: 20190802

RJ01 Rejection of invention patent application after publication