ES2007886A6 - Expansion wave sand moulding process - Google Patents

Expansion wave sand moulding process

Info

Publication number
ES2007886A6
ES2007886A6 ES8801627A ES8801627A ES2007886A6 ES 2007886 A6 ES2007886 A6 ES 2007886A6 ES 8801627 A ES8801627 A ES 8801627A ES 8801627 A ES8801627 A ES 8801627A ES 2007886 A6 ES2007886 A6 ES 2007886A6
Authority
ES
Spain
Prior art keywords
air
expansion wave
moulding process
compaction
diffuser
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
Application number
ES8801627A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to ES8801627A priority Critical patent/ES2007886A6/en
Publication of ES2007886A6 publication Critical patent/ES2007886A6/en
Expired legal-status Critical Current

Links

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  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The process is based on abrupt discharge of air through the diffuser forming an expansion wave which brings about compaction of sand housed in a moulding box. This takes place with free escape of air, for which purpose the residual air escape pipe, pref. situated axially on the discharged air storage bell, opposite the moulding box, is kept open, either by opening the appropriate valve, or by absence of such valve. In this way, at the end of the almost instantaneous compaction, no residual pressure exists in the diffuser, nor is there the usual counter-current of air to eliminate this residual pressure. (0/2)
ES8801627A 1988-05-24 1988-05-24 Expansion wave sand moulding process Expired ES2007886A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES8801627A ES2007886A6 (en) 1988-05-24 1988-05-24 Expansion wave sand moulding process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8801627A ES2007886A6 (en) 1988-05-24 1988-05-24 Expansion wave sand moulding process

Publications (1)

Publication Number Publication Date
ES2007886A6 true ES2007886A6 (en) 1989-07-01

Family

ID=8256491

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8801627A Expired ES2007886A6 (en) 1988-05-24 1988-05-24 Expansion wave sand moulding process

Country Status (1)

Country Link
ES (1) ES2007886A6 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998026887A1 (en) * 1996-12-17 1998-06-25 Loramendi, S.A. Improved machine for compacting sand moulds by air impact or expansion waves
ES2148020A1 (en) * 1996-12-17 2000-10-01 Loramendi Sa Compacting device for compacting sand into moulding box

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998026887A1 (en) * 1996-12-17 1998-06-25 Loramendi, S.A. Improved machine for compacting sand moulds by air impact or expansion waves
ES2148020A1 (en) * 1996-12-17 2000-10-01 Loramendi Sa Compacting device for compacting sand into moulding box
US6145576A (en) * 1996-12-17 2000-11-14 Loramendi, S.A. Machine for compacting sand moulds by air impact or expansion waves
ES2151779A1 (en) * 1996-12-17 2001-01-01 Loramendi Sa Compacting device for compacting sand into moulding box
CN1109590C (en) * 1996-12-17 2003-05-28 洛兰曼迪股份有限公司 Improved machine for compacting sand moulds by air impact or enpansion waves

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