1-20 of 137 Search Results for

hot runners

Sort by
Image
Published: 01 November 1995
Fig. 4 Hot runner injection mold. Source: Ref 2 More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005275
EISBN: 978-1-62708-187-0
... Abstract Thixomolding is a method of molding thixotropic semisolid magnesium alloy pellets in a machine that resembles an injection molding machine in physical appearance and operation. This article describes the process of thixomolding. The use of hot sprues and hot runners in the thixomolding...
Image
Published: 01 December 2008
Fig. 5 Japanese Steel Works Thixomolded personal computer housings with and without hot runners. Source: Ref 14 More
Image
Published: 01 January 2002
Fig. 48 Runner block made from a proprietary hot-work tool steel that was used to die cast aluminum transmission case covers. Macrograph shows the worn out surface of the die. 0.25×. Close-up views of areas 1 and 2 are shown in Fig. 49 . More
Image
Published: 01 January 2002
Fig. 25 Runner block made from a proprietary hot work tool steel that was used to die cast aluminum transmission case covers. Macrograph shows the worn out surface of the die. 0.25×. Close-up views of areas 1 and 2 are shown in Fig. 26 . More
Image
Published: 30 August 2021
Fig. 48 Runner block made from a proprietary hot work tool steel that was used to die cast aluminum transmission case covers. Macrograph shows the worn-out surface of the die. Original magnification: 0.25×. Close-up views of areas 1 and 2 are shown in Fig. 49 . More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005267
EISBN: 978-1-62708-187-0
.... An example of a typical runner, gate and overflow configuration for faucet fixture casting is shown. Temperature control for die casting is also discussed. The article explains some ejection and post-processing techniques used for the hot chamber die casting: robotics, recycling, and fluxing. hot...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003014
EISBN: 978-1-62708-200-6
... are equipped with a hot runner manifold ( Fig. 4 ), which keeps the material in the sprue and runners molten to become a part of the next shot. Fig. 4 Hot runner injection mold. Source: Ref 2 With larger and more complex parts, it is common to use more than one gate for injecting material...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009025
EISBN: 978-1-62708-187-0
... to be cast on distortion. distortion heat treating solidification DISTORTION and hot tearing are closely related. The forces that cause distortion can also cause hot tearing, if they are great enough or are applied at a critical point. These forces result from differences in the times at which...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006303
EISBN: 978-1-62708-179-5
... for all varieties of cast iron and all varieties of molds. It discusses the general conditions for the filling system layout, including the downsprue, sprue/runner junction, and runner. Both gray cast iron and compacted graphite iron exhibit a growth of graphite in direct contact with the liquid metal...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005221
EISBN: 978-1-62708-187-0
... will clearly become hot, it remains unharmed. The benefit to the flow of metal is the redistribution of melt over a larger area prior to emerging into the free volume of the mold cavity. Thus, the thin wall defined by the core acts as a final extension to the runner system, making a valuable reduction...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009017
EISBN: 978-1-62708-187-0
... metal down to join one or more runners, which distribute the metal throughout the mold until it can enter the casting cavity through ingates. Fig. 1 Basic components of a simple gating system for a horizontally parted mold Design Variables Methods used to promote any of the desirable...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005265
EISBN: 978-1-62708-187-0
... tools, sports, medical, military, and aerospace. The general principle of the process involves placing a gas-permeable mold in an isolating chamber such that the sprue (inlet runner) extends downward from the bottom of the chamber. For investment casting, the molds are a common tree design...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006141
EISBN: 978-1-62708-175-7
...) metals or alloys. Recently, with the demand on improving the performance of materials, subjecting the consolidated MIM parts to an additional step of containerless hot isostatic pressing (HIP) is being employed in some instances. Fig. 2 Flowchart for MIM component manufacturing Part Selection...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006498
EISBN: 978-1-62708-207-5
... Conditions, and Simulation The dies used for semisolid casting are similar in concept to those employed for conventional die casting but often differ in the design of gates and runners. The dies are fabricated from hot worked die steels such as superior grade H13 ( Ref 13 ) heat treated to a hardness...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003171
EISBN: 978-1-62708-199-3
... the gating system, it loses heat to the runners and heats them up. Thus, the first metal into the mold is coldest, and the last metal is hottest. For this reason, gates should be placed into heavy sections of the casting, so that hot metal is available to feed shrinkage that occurs in the casting...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005295
EISBN: 978-1-62708-187-0
... to deteriorate faster over time than smooth-wall molds. Hot top castings that create the head in ingot casting are usually made of gray iron. Modified graphite irons have had some success in this application as well. Sprue plates are bottom plates that contain the runners in bottom pouring that feed steel...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005303
EISBN: 978-1-62708-187-0
..., and the rotary movement helps to heat and melt the furnace charge. Melting is accomplished both by the action of the flame directly on the metal and by heat transfer from the hot lining as this shell rotates. These furnaces usually tilt so that they can be charged and poured from the flue opening. At the present...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005318
EISBN: 978-1-62708-187-0
.... Die Casting Machines and Dies The components of die casting machines and dies are seen in Fig. 1 , and materials of construction are given in Table 1 . Fig. 1 Components of a single-cavity die casting die for use in a hot chamber machine. Part numbers refer to Table 1 . Steel...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005351
EISBN: 978-1-62708-187-0
.... Charge materials can contain nonmetallic inclusions from unfiltered primary or secondary ingot. Scrap materials may contain molding sand, debris from back-charged gates and runners, metalworking lubricants, paint and coatings, plastics, or unsorted and unwanted heavy-metal contaminant oxides (iron...