Smelting ladle and method for improving use efficiency thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9989313
SERIAL NO

15083316

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A smelting ladle and a method for improving use efficiency thereof. The smelting ladle includes a housing, a working layer, and a permanent layer. The method includes: 1) rebuilding the working layer to have an outer layer and an inner layer, the inner layer being a consumable working layer which contacts with molten steel and steel slag, and the outer layer being a circulating working layer which contacts with the permanent layer or directly contacts with the housing; 2) allowing the smelting ladle to work, when the thickness of the consumable working layer is reduced to be between 0 and 20 mm, removing a residue of the consumable working layer and masoning a new consumable working layer for the smelting ladle; and 3) repeating 2) until the circulating working layer reaches a designed service life thereof, and casting a new circulating working layer for the smelting ladle.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
WUGANG REFRACTORY CO LTDGONGNONG VILLAGE QINGSHAN DISTRICT WUHAN 430082

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Zhiming Wuhan, CN 2 1
Diao, Yuhan Wuhan, CN 2 1
Hong, Xueqin Wuhan, CN 2 1
Lei, Zhongxing Wuhan, CN 2 1
Liu, Huasheng Wuhan, CN 9 74
Ma, Qinxue Wuhan, CN 2 1
Tian, Xianming Wuhan, CN 3 2
Wang, Zhiqiang Wuhan, CN 138 780
Yi, Bihui Wuhan, CN 2 1
Zhao, Qing Wuhan, CN 156 893
Zhou, Hui Wuhan, CN 264 2025

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 5, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 5, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00