USRE3744E - Improvement in the manufacture of-tin-lined lead pipe - Google Patents
Improvement in the manufacture of-tin-lined lead pipe Download PDFInfo
- Publication number
- USRE3744E USRE3744E US RE3744 E USRE3744 E US RE3744E
- Authority
- US
- United States
- Prior art keywords
- tin
- ingot
- lead
- manufacture
- pipe
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title description 18
- 229910052718 tin Inorganic materials 0.000 description 46
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 46
- 229910052751 metal Inorganic materials 0.000 description 26
- 239000002184 metal Substances 0.000 description 26
- 150000002739 metals Chemical class 0.000 description 10
- 238000005275 alloying Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 4
- 239000011133 lead Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 102100017923 ACOT12 Human genes 0.000 description 2
- 101710008266 ACOT12 Proteins 0.000 description 2
- 101710005000 AF_1436 Proteins 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 2
- 241000658540 Ora Species 0.000 description 2
- 241001199012 Usta Species 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
Images
Definitions
- the two ingots must be so formed, proportioned, and adjusted in relation to cach other, the die, cylinder, and mandrel that the lead ingot, under the operation of the applied power, will not distort the tin ingot to such an extent as to destroy its uniform discharge through the die and the equal thickness of the tin lining or tube in the lead incasement.
- the tin ingot is made'in the form of a series of superposed frusta of cones, as represented iuv the drawings, A A, making preferably the upperfrustum to contain a little more metal than thelower one, and also a little shorter and more tapering than the lat ter, placing the lead ingotBarcnnd the tin in the manner shown.
- the number of frusta of cones in the sexies should be proportionate to the height and diameter of the whole or compound ingot, and it has been found to be best, asa rule to go by, to make the frustaof lengths equal to half the diameter:of the ngot.
- fr usta maybe made sepa ratcly-that is, parted on the transverse dotted line z in Fig. 2, or in casting they lnay be parted longitudinally through the center-or they may be cast in one pieceof ingot, as experience may seem to dictate. The same.
- a uniform thickness of lead and tin through the whole length of pipe- may be approximately obtained even when acylindrical central ingot is used, or one that is nearly cylindrical, by coring ont the lead ingot to reduce the quantity of metal and the consequent excessive density thereof toward the last part of the charge, by which the proper relative proportion of the tin and lead in the pipe is destroyed,
- two molds are rst made of the form of a frustntn of a cone, as represented by the two parts of the ylead ingots B and C when separated on the line z.' Two cres are then made of the forms, respectively, of the top and bottom parts of the tin ingct A, One ofthe last mentioned cores is then put in each ofthe aforementioned molds,and the two parts of the lead ingot, which is divided on the line z, are then cast separately in their respective molds.
- the mandrel E is then set in the center of the lead ingot B thus formed, and the tin ingot is cast around the mandrel, and the lead ingotC is afterward cast, either in the cylinder of the press or in a separate mold, around the ngot B.
- the intermediate ingot may be of lead or some suitable alloy
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