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thin-wall tube-type molds

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005296
EISBN: 978-1-62708-187-0
... such as near-net shape casting, tundish metallurgy, and pouring stream protection. The article discusses the use and capabilities of different molds for steel continuous casting, including thin-wall tube-type molds, solid molds, and plate molds. The article explains the methods for enhancing productivity...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009021
EISBN: 978-1-62708-187-0
... of the mold. Strength-to-Weight Ratio Because they are rigid and have a high strength-to-weight ratio, truss-type castings are desirable for many instrument applications. However, production problems arise when the metal does not flow readily through thin walls in such castings to all parts...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005258
EISBN: 978-1-62708-187-0
... horizontal roller-type machine double-face plate machine pouring HORIZONTAL CENTRIFUGAL CASTING is used to cast parts having an axis of revolution. The technique uses the centrifugal force generated by a rotating cylindrical mold to force the molten metal against the mold wall to form the desired...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006513
EISBN: 978-1-62708-207-5
... reviews the basic components of mold coatings: refractory fillers, binder, and carrier. Casting defects and suggested corrective actions for permanent mold casting are summarized in a table. The article concludes with a discussion on thin-wall permanent-mold castings. cast aluminum alloys casting...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009024
EISBN: 978-1-62708-187-0
... is the same. for a thinner section (∼1 in. or 25 mm) as for a thicker section (4 in. or 100 mm). Because, in general, metal in a casting solidifies from the mold surfaces toward the center of a section, thin sections will freeze before heavy sections. Hence, where a thin section is immediately adjacent...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005277
EISBN: 978-1-62708-187-0
... the “live” nature of the front at all times as the flow expands into the ingot mold. When a Durville-type pour is carried out badly, the metal can flow down into the mold as a stream. Its boundaries (that is, its outer surface is stationary) are formed as a tube of oxide through which the metal flows...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005257
EISBN: 978-1-62708-187-0
... of the mold to form 3 m (10 ft) long pipes with even thickness. Centrifugal heat-resistant steel tube castings rely on a fast pour rate and sufficient pour height to help form the long thin-wall tube before the molten metal gets too cold. Vertical roll casting uses a special-shaped down sprue to prevent...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005259
EISBN: 978-1-62708-187-0
..., if not impossible, to remove the casting from the mold. Steel molds should always be thoroughly stress relieved (minimum temperature of 620 °C, or 1150 °F) before the finish-machining operations. In the case of small, simple molds machined from heavy-wall seamless steel tubing, it has been standard practice...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009020
EISBN: 978-1-62708-187-0
... operations in design. The article describes the factors that control casting tolerances and presents specific tips for designing castings with uniform wall thickness, unequal sections, thin sections, economical coring, functional packaging, and core design. The article provides a framework for analyzing all...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005244
EISBN: 978-1-62708-187-0
... Abstract Cores are separate shapes of sand that are placed in the mold to provide castings with contours, cavities, and passages that are not otherwise practical or physically obtainable by the mold. This article describes the basic principles of coremaking and the types of core sands, binders...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005299
EISBN: 978-1-62708-187-0
... explains the sand casting and permanent mold casting of steel. The process design and casting of thin sections are also discussed. thin-wall steel castings castability graphite molds induction melting permanent mold castings sand mold castings steels solidification characteristics melting...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006519
EISBN: 978-1-62708-207-5
... furnaces are satisfactory for vacuum casting, but the latter are clearly preferred. A major advantage of investment casting is its ability to cast very thin walls. This results from the use of a hot mold but is further enhanced by specific casting methods, such as vacuum-assist casting, pressurized...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009019
EISBN: 978-1-62708-187-0
... shapes of the cored sections permit easy removal of core sand after the casting has cooled. Fig. 10 Well-proportioned cored passages. Sand core was able to withstand normal foundry handling, provided stable positioning in the mold, and was easily vented. Thin-Wall Casting Sections Formed...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003018
EISBN: 978-1-62708-200-6
... for molding parts with relatively large areas and thin walls, such as refrigerator door liners, automotive instrument panels, door panels, and similar parts. Thermoforming offers speed, uniformity, and economy. Given relatively low molding costs and fast molding cycles, thermoforming is often the most cost...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003016
EISBN: 978-1-62708-200-6
... or supported during the foaming process in order to maintain its shape as it cools. In some situations, foaming is possible while the part is still cooling in the mold. The foam type selection and degree of density are based on the cost and intended function of the foam in the part. Single-Wall Parts...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
... for producing symmetrical parts requiring very high strength in one direction, such as pressure tubes, or for wrapping pressure vessels. The process is also useful for producing continuous oriented-fiber preforms for use in compression molding or resin transfer molding, probably in combination with other...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002426
EISBN: 978-1-62708-194-8
... thinner walls, slots Provide a connection or contiguity (so the part can be a single part) Walls, rods, ribs, gussets, tubes Relationship of Parts to Assemblies By performing their own limited functions, parts contribute to the functionality of their parent assembly or subassembly. However...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002481
EISBN: 978-1-62708-194-8
...-grained refractory is poured as a slurry over the pattern and is then allowed to set (plaster molding for nonferrous alloys) or is fired (ceramic-mold casting for higher-melting alloys). With proper control of refractory and shrinkages, complex parts can be cast with thin walls, close tolerances, and good...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... locations on casting exterior Soft or insufficient ramming, mold-wall movement F 126 Thin casting walls over general area, especially on horizontal surfaces Distorted casting F 200: Casting shape incorrect overall or in certain locations F 210: Pattern incorrect F 211 Casting...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002491
EISBN: 978-1-62708-194-8
... are a function of the melt viscosity of the plastic material, the mold design, and the plastic product design. To allow the injection of plastic into the mold, the part designer must consider design features such as the wall thickness and gate type and location. Wall Thickness Wall thickness...