US191974A - Improvement in washes for ingot-molds - Google Patents
Improvement in washes for ingot-molds Download PDFInfo
- Publication number
- US191974A US191974A US191974DA US191974A US 191974 A US191974 A US 191974A US 191974D A US191974D A US 191974DA US 191974 A US191974 A US 191974A
- Authority
- US
- United States
- Prior art keywords
- ingot
- molds
- washes
- improvement
- wash
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
Definitions
- This invention has reference to the wash which is applied to the interior surface of molds, particularly those used for casting Bessemer ingots.
- the mold now in general-use is made of cast-iron, in one piece, having the appearance of atruncated pyramid, the taper being slight and just sufficient to allow clearance in drawing.
- a wash has been commonly employed, consisting of fire-clay and water, applied by dipping or brushing, But even this has not secured perfect'freedom in the withdrawal of the mold from the ingot.
- the consequence has always been that, by reason of this difficulty in drawing, a large supply of extra molds had to be kept on hand to meet the demands of the converters successive heats, and many were soon rendered useless by the rough treatment received by them in the effort required to draw. All this entailed heavy expense upon the manufacturers.
- myinvention consists simply of .a wash composed of water and caustic lime, or oxide of calcium.
- the white or fire clay commonlfemployed as a wash takes up but little water, and when dry contains scarcely any, and does not stick well enough to give a good body.
- the oxide of calcium when mixed with water, absorbs it milk of lime, the we1l-known f whitewash, I
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Description
a and dried before use.
UNITED STATES PATENT OFFICE.
WILLIAM R. JoNEs, OF BRADDOOKS, PENNSYLVANIA.
IMPROVEMENT IN WASHES FOR INGOT-MOLDS.
Specification forming part of Letters Patent No. [91,974, dated June 12, 1877; application filed April 4, 1877.
To all whom it may concern.-
Be it known that 1, WILLIAM R. J mum, of Braddocks, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful' Improvement in Washes for Ingot-Molds; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it.
This invention has reference to the wash which is applied to the interior surface of molds, particularly those used for casting Bessemer ingots.
The mold now in general-use is made of cast-iron, in one piece, having the appearance of atruncated pyramid, the taper being slight and just sufficient to allow clearance in drawing. To assist the drawing, a wash has been commonly employed, consisting of fire-clay and water, applied by dipping or brushing, But even this has not secured perfect'freedom in the withdrawal of the mold from the ingot. The consequence has always been that, by reason of this difficulty in drawing, a large supply of extra molds had to be kept on hand to meet the demands of the converters successive heats, and many were soon rendered useless by the rough treatment received by them in the effort required to draw. All this entailed heavy expense upon the manufacturers. My special object is to prevent this useless expenditure by means of a wash which shall always permit the free and unobstructed withdrawal of the mold without any sledging or battering whatever. To that end myinvention consists simply of .a wash composed of water and caustic lime, or oxide of calcium. The white or fire clay commonlfemployed as a wash takes up but little water, and when dry contains scarcely any, and does not stick well enough to give a good body. But the oxide of calcium, when mixed with water, absorbs it milk of lime, the we1l-known f whitewash, I
and is in that state applied to the mold, adhering tenaciously thereto, and being capable of being laid on thickly. When the highlyheated metal comes in contact with this, the water is again liberated, and the coating diminishes so perceptibly in bulk that no difficulty is experienced in withdrawing the mold. The ingot never sticks and the application is quite as simple and cheap as, it not cheaper than, that ofthe clay-wash.
The practical results are astonishing. In a prolonged actual test of the two washes, my actual experience has been as follows: With the clay-wash the average life of a mold has been fifty-two (52) heats whereas with the lime-wash the average has been increased to the enormous number of one hundred and thirty two (l32) heats. strates the practical utility of my invention, and the saving to manufacturers gained by its use.
Having thus fully described my invention, I claim and desire to secure by Letters Patcut- The herein-described mold-wash, consisting of water and caustic lime or oxideof calcium, substantially as and for the purposes set forth.
In testimony that I claim the foregoing I' have hereunto set my hand this 31st day of March, 187 7,
WILLIAM R. JONES.
Witnesses E. V. MOGANDLESS, THos. J. MGTIGHE.
This fully demon
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US191974A true US191974A (en) | 1877-06-12 |
Family
ID=2261381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US191974D Expired - Lifetime US191974A (en) | Improvement in washes for ingot-molds |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US191974A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2578976A (en) * | 1949-07-02 | 1951-12-18 | Ingala Frank | Method of coating ingot molds and composition therefor |
| US2786771A (en) * | 1952-07-07 | 1957-03-26 | Eaton Mfg Co | Core wash |
-
0
- US US191974D patent/US191974A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2578976A (en) * | 1949-07-02 | 1951-12-18 | Ingala Frank | Method of coating ingot molds and composition therefor |
| US2786771A (en) * | 1952-07-07 | 1957-03-26 | Eaton Mfg Co | Core wash |
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