Foundry Practice; a Treatise On Molding And Casting in Their Various Details
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In our eReader you can find the full English version of the book. Read Foundry Practice; a Treatise On Molding And Casting in Their Various Details Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Foundry Practice; a Treatise On Molding And Casting in Their Various Details
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With other patterns, in case of patching being necessary the pat- tern must be replaced and the tooth reformed.
The gate must always be placed upon the centre of io8 FOUNDRY PRACTICE a gear as the teeth would be very Hable to wash if the metal entered the mold from the rim.
The method of procedure in making a gear from a solid pattern may be shown in mal^:ing a mold for the bevel gear shown in Fig. 58. The parting comes at the top or outer diameter of the teeth ?nd at the bottom of the hub at t...he short side of the arms. If a special follow- board or match is made for the pattern, the drag may be placed and rammed. In other cases, a match must be made on the cope. The cope is laid on a sand bed with the pins upward. Sand is filled in and rammed to a height that brings the parting line of the teeth even with that of the flask when the pattern is in position. The sand is rammed around the pattern until the level of the parting is reached. The parting between the arms is more easily made from this side than after the pattern is reversed; so this portion of the parting is made and parting sand put upon it.
What to read after Foundry Practice; a Treatise On Molding And Casting in Their Various Details?
You can find similar books in the "Read Also" column, or choose other free books by Tate, James M. (James Murray), B. 1852 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
With other patterns, in case of patching being necessary the pat- tern must be replaced and the tooth reformed.
The gate must always be placed upon the centre of io8 FOUNDRY PRACTICE a gear as the teeth would be very Hable to wash if the metal entered the mold from the rim.
The method of procedure in making a gear from a solid pattern may be shown in mal^:ing a mold for the bevel gear shown in Fig. 58. The parting comes at the top or outer diameter of the teeth ?nd at the bottom of the hub at t...he short side of the arms. If a special follow- board or match is made for the pattern, the drag may be placed and rammed. In other cases, a match must be made on the cope. The cope is laid on a sand bed with the pins upward. Sand is filled in and rammed to a height that brings the parting line of the teeth even with that of the flask when the pattern is in position. The sand is rammed around the pattern until the level of the parting is reached. The parting between the arms is more easily made from this side than after the pattern is reversed; so this portion of the parting is made and parting sand put upon it.
What to read after Foundry Practice; a Treatise On Molding And Casting in Their Various Details?
You can find similar books in the "Read Also" column, or choose other free books by Tate, James M. (James Murray), B. 1852 to read onlineMoreLess
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