DE396788C - Manufacture of vessels with high chemical resistance - Google Patents

Manufacture of vessels with high chemical resistance

Info

Publication number
DE396788C
DE396788C DES58980D DES0058980D DE396788C DE 396788 C DE396788 C DE 396788C DE S58980 D DES58980 D DE S58980D DE S0058980 D DES0058980 D DE S0058980D DE 396788 C DE396788 C DE 396788C
Authority
DE
Germany
Prior art keywords
vessels
chemical resistance
high chemical
manufacture
fluorspar
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.)
Expired
Application number
DES58980D
Other languages
German (de)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DES58980D priority Critical patent/DE396788C/en
Application granted granted Critical
Publication of DE396788C publication Critical patent/DE396788C/en
Expired 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/553—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on fluorides

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

Herstellung vorn Gefäßen von hoher chemischer Widerstandsfähigkeit. Tiegel, Rohre und ähnliche Gefäße,- -die eine besonders hohe chemische Widerstandsfähigkeit haben sollen, und die insbesondere gegen Flußsäure - auch in gasförmigem Zustande -- oder Fluor unempfindlich sind, werden erfindungsgemäß aus Flußspat hergestellt.Manufacture in front of vessels of high chemical resistance. Crucibles, tubes and similar vessels - -that have a particularly high chemical resistance should have, and especially against hydrofluoric acid - even in the gaseous state - or are insensitive to fluorine, are produced according to the invention from fluorspar.

Es sind schon vielfach Schalen und andere Gegenstände aus Flußspat hergestellt worden, aber nur in der Weise, daß das natürlich vorkommende Material geschnitten oder geschliffen wurde. Solche Gegenstände dienten hauptsächlich als Ziergeräte und waren in ihrer Größe und Form sowie in ihren mechanischen Eigenschaften wesentlich von der Beschaffenheit der Mineralkörper abhängig. Um Gefäße von beliebiger Größe und Form sowie von hoher thermischer und mechanischer Widerstandsfähigkeit zu gewinnen, wird der Flußspat erfindungsgemäß ähnlich wie andere keramische Massen fein pulverisiert zu -einer plastischen Masse verarbeitet, geformt und gesintert.There are already many bowls and other objects made of fluorspar has been produced, but only in such a way that the naturally occurring material has been cut or sanded. Such items served mainly as Ornamental devices and were in their size and shape, as well as in their mechanical properties depends essentially on the nature of the mineral bodies. To vessels of any Size and shape as well as of high thermal and mechanical resistance To win, the fluorspar is similar to other ceramic masses according to the invention finely pulverized to a plastic mass processed, shaped and sintered.

Als vorteilhaft hat es sich erwiesen, bei der Herstellung der plastischen Masse etwas Bleifluorid zuzusetzen. Es" hat die Wirkung, daß die Masse plastischer wird und sich leichter formen läßt. Dieses Bleifluorid geht später bei dem Sintern wieder fast vollständig hinaus.It has proven to be advantageous in the production of the plastic Add some lead fluoride to the mass. It "has the effect of making the mass more plastic and is easier to shape. This lead fluoride goes later in the sintering almost completely out again.

Da der Flußspat sehr stark zusammensintert, ist es zweckmäßig, nicht von dem gemahlenen Naturflußspat auszugehen, sondern von einem stark vorgesinterten Material, das dann gemahlen und in der beschriebenen Weise weiterverarbeitet wird.Since the fluorspar sinters together very strongly, it is advisable not to to start from the ground natural fluorspar, but from a heavily pre-sintered one Material that is then ground and processed in the manner described.

Claims (3)

PATENT-ANSPRÜCHR: Gefäß von hoher chemischer Widerstandsfähigkeit, bestehend aus gesintertem Flußspat. z. PATENT CLAIMS: Vessel of high chemical resistance, consisting of sintered fluorspar. z. Verfahren zur Herstellung von Gefäßen nach Anspruch i, dadurch gekennzeichnet, daß vorgesinterter Flurspat als Ausgangsmaterial verwendet wird. Process for the production of vessels according to Claim i, characterized in that presintered fluorite is used as the starting material is used. 3. Verfahren zur Herstellung von Gefäßen nach Anspruch i, dadurch gekennzeichnet, daß der zu formenden Flußspatmasse etwas Bleifluorid zugesetzt wird.3. A method for producing vessels according to claim i, characterized in that characterized in that some lead fluoride is added to the fluorspar mass to be formed.
DES58980D 1922-02-22 1922-02-22 Manufacture of vessels with high chemical resistance Expired DE396788C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES58980D DE396788C (en) 1922-02-22 1922-02-22 Manufacture of vessels with high chemical resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES58980D DE396788C (en) 1922-02-22 1922-02-22 Manufacture of vessels with high chemical resistance

Publications (1)

Publication Number Publication Date
DE396788C true DE396788C (en) 1924-06-06

Family

ID=7492955

Family Applications (1)

Application Number Title Priority Date Filing Date
DES58980D Expired DE396788C (en) 1922-02-22 1922-02-22 Manufacture of vessels with high chemical resistance

Country Status (1)

Country Link
DE (1) DE396788C (en)

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