US1662158A - Ferrous alloy - Google Patents
Ferrous alloy Download PDFInfo
- Publication number
- US1662158A US1662158A US38438A US3843825A US1662158A US 1662158 A US1662158 A US 1662158A US 38438 A US38438 A US 38438A US 3843825 A US3843825 A US 3843825A US 1662158 A US1662158 A US 1662158A
- Authority
- US
- United States
- Prior art keywords
- carbon
- ferrous alloy
- phosphorus
- chromium
- silicon
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
Definitions
- the purpose of my invention is to provide an alloy that may be serviceable in and of itself for the production of iron castings made in permanent steel molds; that may be combined with ordinary pig iron for the same purpose; that by reason of its ingredients there is produced a composition which on bein melted and pouredinto permanent molds d oes not form a scale of carbon adjacent the mold surfaces; that is free flowing; that eliminates the formation of pin holes and other voids in the finished product; and as a summation of the previous purposes, enables me to produce gray iron castings 1n permanent steel molds similar to the die casting of bronzes and white, metals.
- blow holes 1n The occurrence of blow holes in cast gears is a serious matter, because the presence of these defects in one or more teeth,
- Silicon, phosphorus and aluminum if used alone, would have a tendency to more or less separate the carbon particles and thus reduce the physical strength of the product.
- a ferrous alloy freely flowing under 8 pressure comprising a substantial amount of carbon but less than two per cent, a substantial amount of aluminum but less than half of one per cent, a, substantial amount of phosphorus of not less-than one per cent combined with not less than two and a half 10 per cent of silicon, two per cent of chromium, one per cent of titanium, two per cent of manganese, and eighty-nine per cent of pig 1IOI1.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
Patented Mar. 13, 1928.
UNITED STATES CHARLES MEIER, OF VALPARAISO, INDIANA.
FERROUS ALLOY.
No Drawing.
My invention, relates to a. ferrous alloy and it more especially consists of the features pointed out in the annexed claims.
The purpose of my invention is to provide an alloy that may be serviceable in and of itself for the production of iron castings made in permanent steel molds; that may be combined with ordinary pig iron for the same purpose; that by reason of its ingredients there is produced a composition which on bein melted and pouredinto permanent molds d oes not form a scale of carbon adjacent the mold surfaces; that is free flowing; that eliminates the formation of pin holes and other voids in the finished product; and as a summation of the previous purposes, enables me to produce gray iron castings 1n permanent steel molds similar to the die casting of bronzes and white, metals.
In attempts heretofore madeto produce homogeneous, non-scalinglgray 110I1 castings in permanent steel dies,t ey have been practical failures because of the formation of a hard scale of carbon wherever the molten 5 metal touched the surface of the steel mold,
\ and for the further reason that the castings so made have been markedly deficient through the presence of blow holes 1n them. The occurrence of blow holes in cast gears is a serious matter, because the presence of these defects in one or more teeth,
even though not visible, will cause the casting to have no practical value.
. The composition herein described may be used by itself as an alloy, or it may be added to ordinary pig iron, as desired; When used by itself, I have found the following proportion of .ingredients to give desirable results: For instance, carbon from 2 to 4%; silicon 2.5%; 60% chromium 1 to 3%; 25% carbon free titanium 1 to 3%; aluminum to 1% manganese A; to 3%; and phosphorus to 1%. Y When my alloy is used with pig iron have found that I may use carbon 2 parts,
silicon 2.5, chromium 2, titanium 1, manganese 2, aluminum .5, and phosphorus 1, making a total of 11 parts which are combined with 89 parts pig iron.
In making up a charge, if the pig 11011' already contains the'required pro ortlon of carbon, silicon and phosphorus t ese need not be added. The ingredients are brought steel molds.
Application filed 'June 20, 1925. Serial No. 38,438.-
to the meltin point, when the aluminum is added in order to prevent the metal adhering to the mold Walls. There 1s also added chromium and titanium in order to change the loose carbon of the iron to a combined carbon, thus making a homogeneous free flowing composition available for the production of gray iron castings in permanent The presence of the phosphorus insures a greater fluidity of'the melted metal. The absence of phosphorus, aluminium and silicon, will cause the metal to oxidize very rapidly and form pin holes in the finished product.
Silicon, phosphorus and aluminum, if used alone, would have a tendency to more or less separate the carbon particles and thus reduce the physical strength of the product. To overcome this, I use manganese, chromium and carbon free titanium, which through their greater afiinity for carbon'serve to produce a' complete free flowing metal in which the carbon is cooperatively'associated with the other ingredients in a very close relation.
I do not of course limit myself to the exact proportions of the various ingredients'that I have mentioned, as I may vary the same more or less according to the demands of engineering practice; because some conditions require more strength than others and' again some products may need to be made of a softer, and others of a harder, metal. The increase 'of strength is brought about through the use of chromium and titanium. In addition to this feature of these two ingredients, if they are reduced, a softer metal is secured and when they are increased the product becomes relatively harder.
I have subjected my composition to practical tests under varying conditions, and have found the same to give uniform results free from scale, true to mold dimensions, and free from pin holes.
. What I claim is:
1. A ferrous alloy adaptable for use in its melted state in permanent steel molds, comprising 2 to- 4% carbon,.2.5% silicon, chromium 1 to 3%, titanium 1 to 3%, aluminum .5 to -1 %,manganese .5 to 8%, and phosphorus .25 to 1%.
2.,The process of forming a. ferrous alloy for use in its melted state in permanent steel molds which consists in using 89 parts of pig iron with 2 of carbon, 2.5 silicon, 2 chromium, 1 titanium, 2 manganese, .5 aluminum, and 1 part of phosphorus.
3. A ferrous alloy freely flowing under 8 pressure, comprising a substantial amount of carbon but less than two per cent, a substantial amount of aluminum but less than half of one per cent, a, substantial amount of phosphorus of not less-than one per cent combined with not less than two and a half 10 per cent of silicon, two per cent of chromium, one per cent of titanium, two per cent of manganese, and eighty-nine per cent of pig 1IOI1.
In testimony whereof I afiix my signature.
CHARLES MEIER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38438A US1662158A (en) | 1925-06-20 | 1925-06-20 | Ferrous alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38438A US1662158A (en) | 1925-06-20 | 1925-06-20 | Ferrous alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
US1662158A true US1662158A (en) | 1928-03-13 |
Family
ID=21899956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US38438A Expired - Lifetime US1662158A (en) | 1925-06-20 | 1925-06-20 | Ferrous alloy |
Country Status (1)
Country | Link |
---|---|
US (1) | US1662158A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4342588A (en) * | 1980-01-25 | 1982-08-03 | Rederiaktiebolaget Nordstjernan | Wear resistant cast iron |
-
1925
- 1925-06-20 US US38438A patent/US1662158A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4342588A (en) * | 1980-01-25 | 1982-08-03 | Rederiaktiebolaget Nordstjernan | Wear resistant cast iron |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2128955A (en) | Hot workable phosphor bronze | |
US1711000A (en) | Method of making wrought-metal articles | |
US1662158A (en) | Ferrous alloy | |
US2152006A (en) | Method of producing articles of hadfield manganese steel | |
US2400566A (en) | Alloy | |
US2795501A (en) | Copper base alloys | |
US3859055A (en) | Tungsten-nickel-iron shaping members | |
US2384565A (en) | Alloy steel and articles | |
US2007008A (en) | Copper zinc alloy containing silicon and iron | |
US2238592A (en) | Copper base alloy | |
US1542440A (en) | Iron alloy | |
US1764034A (en) | Alloy | |
AT231784B (en) | Process for the production of metallic molded parts by extrusion | |
US1540006A (en) | Metallic alloy | |
US2598714A (en) | Machinable high cobalt low carbon alloys for die-casting molds | |
JP3152400B2 (en) | Hard zinc alloy for hardfacing welding and a mold having a hardfacing portion made of the alloy | |
US1452232A (en) | Alloy | |
US2007430A (en) | Copper alloy | |
US2062426A (en) | Copper-zinc-lead-phosphorous alloy and articles | |
US2254202A (en) | Aluminum alloy | |
US2132276A (en) | Metal mold | |
US2136919A (en) | Copper alloys of improved characteristics | |
US1731676A (en) | Process of die-casting cast iron | |
US1850355A (en) | Alloy | |
DE102011117845B3 (en) | Producing austenite-containing fine-dendritic cast steel exhibiting increased transformation induced plasticity/twinning induced plasticity properties, comprises blowing species-characteristic particles with inert gas, into casting stream |