SU1520897A1 - METHOD FOR REMOVAL OF CERAMIC RODS - Google Patents

METHOD FOR REMOVAL OF CERAMIC RODS

Info

Publication number
SU1520897A1
SU1520897A1 SU4185423/02A SU4185423A SU1520897A1 SU 1520897 A1 SU1520897 A1 SU 1520897A1 SU 4185423/02 A SU4185423/02 A SU 4185423/02A SU 4185423 A SU4185423 A SU 4185423A SU 1520897 A1 SU1520897 A1 SU 1520897A1
Authority
SU
USSR - Soviet Union
Prior art keywords
melt
castings
ceramic rods
order
temperature
Prior art date
Application number
SU4185423/02A
Other languages
Russian (ru)
Inventor
В.М. Волков
Н.И. Варламова
Original Assignee
В.М. Волков
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 В.М. Волков filed Critical В.М. Волков
Priority to SU4185423/02A priority Critical patent/SU1520897A1/en
Application granted granted Critical
Publication of SU1520897A1 publication Critical patent/SU1520897A1/en

Links

Landscapes

  • Processing Of Solid Wastes (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

1. Способ удаления керамических стержней, преимущественно на основе оксида алюминия из отливок со сложными полостями в расплаве фтористой соли, включающий нагрев расплава до 280-300°С, загрузку в него предварительно нагретых до температуры расплава отливок, последующий подъем температуры расплава до 350-370°С, выдержку отливок в расплаве, извлечение их из расплава и промывку, отличающийся тем, что, с целью повышения эффективности очистки отливок, в качестве исходных материалов для расплава используют смесь бифторида аммония с технической гидроокисью калия в соотношении (60-50):(40-50) мас.% и осуществляют их смешивание при комнатной температуре.2. Способ по п.1, отличающийся тем, что, с целью повторного использования отработанного расплава, его охлаждают до 200-220°С и добавляют в него 5-15 мас.% бифторида аммония.1. The method of removing ceramic rods, mainly based on aluminum oxide from castings with complex cavities in the melt fluoride salt, including heating the melt to 280-300 ° C, loading into it pre-heated to the melt temperature castings, the subsequent rise in the melt temperature to 350-370 ° C, holding the castings in the melt, removing them from the melt and washing, characterized in that, in order to increase the cleaning efficiency of the castings, a mixture of ammonium bifluoride with a technical hydr is used as raw materials for the melt potassium oxide in the ratio (60-50) :( 40-50) wt.% and carry out their mixing at room temperature.2. The method according to claim 1, characterized in that, in order to reuse the spent melt, it is cooled to 200-220 ° C and 5-15% by weight of ammonium bifluoride is added to it.

SU4185423/02A 1986-10-27 1986-10-27 METHOD FOR REMOVAL OF CERAMIC RODS SU1520897A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4185423/02A SU1520897A1 (en) 1986-10-27 1986-10-27 METHOD FOR REMOVAL OF CERAMIC RODS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4185423/02A SU1520897A1 (en) 1986-10-27 1986-10-27 METHOD FOR REMOVAL OF CERAMIC RODS

Publications (1)

Publication Number Publication Date
SU1520897A1 true SU1520897A1 (en) 2005-11-20

Family

ID=60528406

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4185423/02A SU1520897A1 (en) 1986-10-27 1986-10-27 METHOD FOR REMOVAL OF CERAMIC RODS

Country Status (1)

Country Link
SU (1) SU1520897A1 (en)

Similar Documents

Publication Publication Date Title
DE3583930D1 (en) CLEANING OF SOLUTIONS TO THE BAYER PROCESS.
NO873410L (en) PHOSPHATE-FREE DISHWASH.
IT8620757A0 (en) PROCESS FOR THE SELECTIVE REMOVAL OF HYDRULUS ACID.
ZA766247B (en) Improvements in the purification of solutions circulating in the bayer cycle(process)
SU1520897A1 (en) METHOD FOR REMOVAL OF CERAMIC RODS
BR8703168A (en) PROCESS TO SYNTHESIZE CRYSTALLINE BINARY OXIDE
US6016668A (en) Method for dissolving a hardened glass solder, method for separating components joined by a glass solder, method for disassembling a fuel cell
ATE131459T1 (en) METHOD FOR INCORPORATING FILTER DUST CONTAINING HEAVY METALS IN CERAMIC MOLDINGS
SU1410574A1 (en) METHOD FOR CHEMICAL CLEANING OF CERAMICS CASTINGS
DE3780084D1 (en) METHOD FOR BURNING GREEN MOLDED PARTS.
JPS52108403A (en) Method for exchanging furnace frames in coke ovens
SU575856A1 (en) Method of purifying boron nitride
JPS55154536A (en) Impurity removing method for molten metal
SU643437A1 (en) Method of preparing silicate ingredients of charge
JPS5367678A (en) Treating method for by-product formed in process of treating exhaust gasby irradiation of radiation
IT1049920B (en) PROCESS FOR THE PREPARATION OF A SILICON COMPOSITION TO A VULCANIZABLE COMPONENT AT ROOM TEMPERATURE
SU1468021A1 (en) METHOD FOR OBTAINING CRYSTAL BRUSHES
SU1234366A1 (en) Method of removing sodium sulfate from cryolite
RU94018573A (en) METHOD FOR BURNING CERAMIC PRODUCTS
Soderstrom Energy Cascades in Heat Treatment
SU146452A1 (en) Chemical Polishing Solution for Glassware
Malen'Kikh et al. Gaseous Refining of Aluminum From Sodium
SU397475A1 (en) METHOD OF OBTAINING POLYMERIC SILICATE
JPS53124289A (en) Improved preparation of 6-acyl-amidopenicillanic acids
JPS5242367A (en) Method of preventing occurence of crystal defects of silicon wafers