IT1022380B - Procedimento di lavorazione a freddo particolarmente per dia frammi metallici - Google Patents
Procedimento di lavorazione a freddo particolarmente per dia frammi metalliciInfo
- Publication number
- IT1022380B IT1022380B IT27788/74A IT2778874A IT1022380B IT 1022380 B IT1022380 B IT 1022380B IT 27788/74 A IT27788/74 A IT 27788/74A IT 2778874 A IT2778874 A IT 2778874A IT 1022380 B IT1022380 B IT 1022380B
- Authority
- IT
- Italy
- Prior art keywords
- dia
- working process
- cold working
- metal frames
- process especially
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/38—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0042—Constructional details associated with semiconductive diaphragm sensors, e.g. etching, or constructional details of non-semiconductive diaphragms
- G01L9/0044—Constructional details of non-semiconductive diaphragms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
- G01L9/006—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of metallic strain gauges fixed to an element other than the pressure transmitting diaphragm
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49105—Switch making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49805—Shaping by direct application of fluent pressure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid Mechanics (AREA)
- Diaphragms And Bellows (AREA)
- Measuring Fluid Pressure (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/402,036 US4011650A (en) | 1973-10-01 | 1973-10-01 | Cold working process |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1022380B true IT1022380B (it) | 1978-03-20 |
Family
ID=23590263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT27788/74A IT1022380B (it) | 1973-10-01 | 1974-09-27 | Procedimento di lavorazione a freddo particolarmente per dia frammi metallici |
Country Status (8)
Country | Link |
---|---|
US (1) | US4011650A (it) |
JP (1) | JPS50110968A (it) |
CA (1) | CA1013708A (it) |
DE (1) | DE2444928A1 (it) |
FR (1) | FR2246938B1 (it) |
GB (1) | GB1481179A (it) |
IT (1) | IT1022380B (it) |
NL (1) | NL7412510A (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4237775A (en) * | 1978-08-21 | 1980-12-09 | Gould Inc. | Diaphragm for pressure sensors |
US5311662A (en) * | 1992-04-22 | 1994-05-17 | Siemens Automotive L.P. | Press metering apparatus and method |
US8281669B2 (en) * | 2008-09-02 | 2012-10-09 | Daniel A Ertl | Simplified orifice type differential pressure flow meter with improved accuracy |
NO20111436A1 (no) * | 2011-10-21 | 2013-04-22 | Petroleum Technology Co As | Pluggsensor for temperatur- og trykkovervaking i en olje-/gassbronn |
JP6228003B2 (ja) * | 2013-12-26 | 2017-11-08 | サンデンホールディングス株式会社 | 流量検出装置及び可変容量圧縮機 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123903A (en) * | 1964-03-10 | Manufacture of snap-acting devices | ||
US3302269A (en) * | 1965-02-02 | 1967-02-07 | Texas Instruments Inc | Methods of making condition responsive devices |
-
1973
- 1973-10-01 US US05/402,036 patent/US4011650A/en not_active Expired - Lifetime
-
1974
- 1974-09-20 DE DE19742444928 patent/DE2444928A1/de not_active Withdrawn
- 1974-09-23 NL NL7412510A patent/NL7412510A/xx not_active Application Discontinuation
- 1974-09-27 IT IT27788/74A patent/IT1022380B/it active
- 1974-09-30 CA CA210,339A patent/CA1013708A/en not_active Expired
- 1974-10-01 JP JP49113257A patent/JPS50110968A/ja active Pending
- 1974-10-01 FR FR7433018A patent/FR2246938B1/fr not_active Expired
- 1974-10-01 GB GB42562/74A patent/GB1481179A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1481179A (en) | 1977-07-27 |
JPS50110968A (it) | 1975-09-01 |
FR2246938A1 (it) | 1975-05-02 |
FR2246938B1 (it) | 1979-09-28 |
US4011650A (en) | 1977-03-15 |
NL7412510A (nl) | 1975-04-03 |
CA1013708A (en) | 1977-07-12 |
DE2444928A1 (de) | 1975-04-10 |
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