CN105115464B - Plate-type heat exchanger slab mould gap measuring method - Google Patents
Plate-type heat exchanger slab mould gap measuring method Download PDFInfo
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- CN105115464B CN105115464B CN201510526324.3A CN201510526324A CN105115464B CN 105115464 B CN105115464 B CN 105115464B CN 201510526324 A CN201510526324 A CN 201510526324A CN 105115464 B CN105115464 B CN 105115464B
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Abstract
The present invention relates to plate type heat exchanger to produce auxiliary equipment detection technique field, discloses a kind of plate-type heat exchanger slab mould gap measuring method.The characteristics of mobility is preferably when the present invention utilizes smaller softer metals hardness, extruding, resilience is minimum after shaping, softer metals galvanized wire or tin silk are cut into some segments, it is prepared into soft metal sample, it is placed on the test point of the lower mould inner surface of mould test point, test point uniformly, comprehensively, is symmetrically distributed in the inner surface of lower mould, apply appropriate pressure on a hydraulic press to be suppressed, softer metals are made to fill die clearance, then the actual mould gap in the gap for being molded soft metal THICKNESS CALCULATION mould, really detection calendering mould is utilized；Method of testing of the present invention is simple, and measurement result precision is high, and softer metals materials are few, reduce testing cost；Because softer metals hardness is smaller, briquetting pressure is relatively low, will not produce destruction to the inner surface of mould, extend the mold use life-span.
Description
Technical field
The present invention relates to plate type heat exchanger to produce auxiliary equipment detection technique field, specifically a kind of detection method letter
Just the plate-type heat exchanger slab mould gap measuring method that, cost is low, measurement data accuracy is high.
Background technology
At present, plate type heat exchanger application field is constantly extending, while the application operating mode of plate type heat exchanger is also more and more severe
Carve, and plate type heat exchanger shaping plate is one of the most key parts of plate type heat exchanger, therefore how to improve plate-type heat-exchange
Device shaping plate precision just turns into the key subjects of plate type heat exchanger industry.
The materials such as plate type heat exchanger shaping plate generally use stainless steel, titanium plate, nickel plate are compressing, and sheet is general
It is domestic at present generally using a set of calendering mold forming different materials, the plate of different thicknesss of slab between 0.4mm-0.9mm, to mould
It is higher to have the requirement in gap, to balance different materials, the plate compacting of different thicknesss of slab.If die clearance does not reach design requirement
Value, plate precision is necessarily caused to reduce, plate difficult forming, or even the local thickness of plate is thinned or even plate pressure break etc. is asked
Topic.Irrational die clearance can cause mould excessive wear simultaneously, have impact on the mold use life-span.
The method in prior art Measurement die gap is that the mode that the shaping plate that will have been produced is splitted with wire cutting detects,
The shortcomings that this mode, is that different materials, the shaping plate material sheet plastic resilience of different thicknesss of slab are widely different, can not accurately examine
Survey the actual mould gap of Die；Shaping plate cutting causes the waste of production material in addition, adds production cost.
The content of the invention
It is an object of the invention to provide a kind of plate-type heat exchanger slab mould gap measuring method, to solve between mould
The problem of gap measured value is inaccurate, and production material wastes.
In order to solve the above technical problems, the technical solution used in the present invention is：
A kind of plate-type heat exchanger slab mould gap measuring method, this method are placed on tested using softer metals
The gap location that mould need to detect, softer metals deform after mould matched moulds, are judged by measuring the deflection of soft metal
The gap of tested mould, it comprises the following steps：
Step 1: softer metals are cut into some segments, soft metal sample is prepared into, is placed on mould test point
On lower mould inner surface, the selection of test point needs to be evenly distributed, comprehensively, symmetrically；
Step 2: sample is molded, after soft metal sample arranging is appropriate, the upper die and lower die matched moulds of mould is applied with hydraulic press
Add appropriate pressure, soft metal sample is slowly extruded into waviness, takes out the soft metal sample after shaping；
Step 3: the soft metal specimen size after measurement shaping, it is measured to each soft metal sample of extrusion forming
Base thickness b, the lopsided thickness a1 and a2 of base both sides；
Step 4: data statistics and analysis：Utilize the lopsided thickness of thickness b and base both sides on soft metal sample base
Lopsided mould side clearance ε 1 and ε 2 when a1 and a2 conversion compacting actual (real) thickness is δ shaping plate, and then judge mould
Whether gap meets design requirement.
As a further improvement on the present invention, the softer metals are galvanized wire or tin silk.
In above-mentioned steps four, the thickness b on soft metal sample base and base both sides lopsided thickness a1 and a2 conversion
Lopsided mould side clearance ε 1 and ε 2 reduction formula is during the shaping plate that compacting actual (real) thickness is δ：
ε1=a1+(δ-b)sinα （1）
ε2=a2+(δ-b)sinα （2）
Wherein δ is shaping thickness of slab, and α is the lopsided angle on soft metal sample base and its both sides, by measuring or designing
Drawing gives, and ε 1 and ε 2 are mould side clearance；
Further according to（ε1+ε2）/ 2 compared with δ numerical value, can determine whether out whether the die clearance size of the test point is full
Sufficient design requirement.
Beneficial effects of the present invention are：
（1）, the present invention using softer metals hardness is smaller, extruding when mobility preferably, the minimum spy of resilience after shaping
Point, softer metals is placed on the measurement position of tested mould, is applied appropriate pressure on a hydraulic press and is suppressed, is made soft
Metal material fills die clearance, then using the method for being molded soft metal THICKNESS CALCULATION die clearance, can accurately detect calendering
The actual mould gap of mould；
（2）, the softer metals materials used in the present invention it is few, detection method is easy, cost is low, solves profiled sheeting
Piece cutting brings waste of material, reduces testing cost；
（3）, because softer metals hardness is smaller, briquetting pressure is relatively low, will not produce destruction to the inner surface of mould, prolong
The mold use life-span is grown.
Brief description of the drawings
Fig. 1 is the test philosophy schematic diagram of the present invention；
Fig. 2 is the instrumentation plan of present invention shaping soft metal sample in Fig. 1；
Fig. 3 is test point arrangement schematic diagram of the present invention in Fig. 1；
In figure：1st, upper mould, 2, lower mould, 3, soft metal sample.
Embodiment
The present invention and its advantage are described in further detail below in conjunction with the accompanying drawings.
A kind of plate-type heat exchanger slab mould gap measuring method as shown in Figure 1 to Figure 3, this method use soft gold
Category material is placed on the gap location that tested mould need to detect, and softer metals deform after mould matched moulds, by measuring soft gold
The deflection of category judges the gap of tested mould, and it comprises the following steps：
Step 1: softer metals galvanized wire or tin silk are cut into some segments, soft metal sample is prepared into, is placed on
1 to 12 test point on the lower mould inner surface of mould test point, test point uniformly, comprehensively, are symmetrically distributed in the interior table of lower mould
On face；
Step 2: sample is molded, after soft metal sample arranging is appropriate, the upper die and lower die matched moulds of mould is applied with hydraulic press
Add appropriate pressure, soft metal sample is slowly extruded into waviness, takes out the soft metal sample after shaping；
Step 3: the soft metal specimen size after measurement shaping, it is measured to each soft metal sample of extrusion forming
Base thickness b, the lopsided thickness a1 and a2 of base both sides；
Step 4: data statistics and analysis：Utilize the lopsided thickness of thickness b and base both sides on soft metal sample base
Lopsided mould side clearance ε 1 and ε 2, reduction formula are when a1 and a2 conversion compacting actual (real) thickness is δ shaping plate：
ε1=a1+(δ-b)sinα （1）
ε2=a2+(δ-b)sinα （2）
Wherein δ is shaping sheet, and α is the lopsided angle of soft metal sample base and its both sides, by measurement or
Design drawing gives, and ε 1 and ε 2 are mould side clearance；
Further according to（ε1+ε2）/ 2 compared with δ numerical value, can determine whether out whether the die clearance size of the test point is full
Sufficient design requirement.
The characteristics of mobility is preferably when the present invention utilizes smaller softer metals hardness, extruding, resilience is minimum after shaping, will
Softer metals are placed on the measurement position of tested mould, apply appropriate pressure on a hydraulic press and are suppressed, make soft metal
Material fills die clearance, then using the method for being molded soft metal THICKNESS CALCULATION die clearance, can accurately detect calendering mould
Actual mould gap.Softer metals materials used in the present invention are few, and detection method is easy, cost is low, solves into
Template piece cutting brings waste of material, reduces testing cost.
As profiled sheeting piece thickness δ=0.5mm, gained die clearance measurement result is as shown in table 1：
Table 1
As profiled sheeting piece thickness δ=0.7mm, gained die clearance measurement result is as shown in table 2：
Table 2
。
Claims (2)
- A kind of 1. plate-type heat exchanger slab mould gap measuring method, it is characterised in that：This method uses softer metals The gap location that tested mould need to detect is placed on, softer metals deform after mould matched moulds, by the change for measuring soft metal Shape amount judges the gap of tested mould, and it comprises the following steps：Step 1: softer metals are cut into some segments, soft metal sample is prepared into, is placed on the lower mould of mould test point On inner surface, the selection of test point needs to be evenly distributed, comprehensively, symmetrically；Step 2: sample is molded, after soft metal sample arranging is appropriate, the upper die and lower die matched moulds of mould is applied suitable with hydraulic press When pressure, soft metal sample is slowly extruded into waviness, takes out the soft metal sample after shaping；Step 3: the soft metal specimen size after measurement shaping, its base is measured to each soft metal sample of extrusion forming Thickness b, the lopsided thickness a1 and a2 of base both sides；Step 4: data statistics and analysis：Using the thickness b on the soft metal sample base and lopsided thickness a1 in base both sides and Lopsided mould side clearance ε 1 and ε 2, reduction formula are when a2 conversion compacting actual (real) thickness is δ shaping plate：Wherein δ is shaping thickness of slab, and α is the lopsided angle on soft metal sample base and its both sides, by measurement or design drawing Given, ε 1 and ε 2 are mould side clearance；And then judge whether the gap of mould meets design requirement.
- 2. plate-type heat exchanger slab mould gap measuring method according to claim 1, it is characterised in that：It is described soft Metal material is galvanized wire or tin silk.
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| CN201510526324.3A CN105115464B (en) | 2015-08-25 | 2015-08-25 | Plate-type heat exchanger slab mould gap measuring method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109203399A (en) * | 2018-09-29 | 2019-01-15 | 山西江淮重工有限责任公司 | Thin wall type shell gel-injection mould depth chamber Thickness sensitivity tooling and detection method |
| CN109248939B (en) * | 2018-10-29 | 2020-03-10 | 上汽大众汽车有限公司 | Method for measuring die closing allowance of stamping die |
| CN111076693A (en) * | 2019-12-26 | 2020-04-28 | 武汉理工大学 | Die gap uniformity detection system |
| CN111504211B (en) * | 2020-04-21 | 2024-06-11 | 三一重能股份有限公司 | Die closing gap measuring mechanism and device |
| CN112762881A (en) * | 2020-12-24 | 2021-05-07 | 内蒙古航天红岗机械有限公司 | Method for detecting clearance of inner cavity of mould pressing die |
| CN114483607A (en) * | 2021-12-30 | 2022-05-13 | 格瑞拓动力股份有限公司 | Method for measuring gap between open type three-dimensional flow impeller and fluid director |
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| CN104525722A (en) * | 2014-12-04 | 2015-04-22 | 柳州福臻车体实业有限公司 | Measurement method of clearance of drawing die |
| CN104624725A (en) * | 2014-12-04 | 2015-05-20 | 广西科技大学 | Automobile panel die assembly clearance measurement method |
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| JP3775293B2 (en) * | 2001-06-19 | 2006-05-17 | 日産自動車株式会社 | Clearance measurement method |
| JP2007127575A (en) * | 2005-11-07 | 2007-05-24 | Toyota Motor Corp | Method of measuring molding space between molds |
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| CN104525722A (en) * | 2014-12-04 | 2015-04-22 | 柳州福臻车体实业有限公司 | Measurement method of clearance of drawing die |
| CN104624725A (en) * | 2014-12-04 | 2015-05-20 | 广西科技大学 | Automobile panel die assembly clearance measurement method |
Non-Patent Citations (1)
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| 冲压模具间隙分析及模具结构设计;金敦水;《煤矿机械》;20100531;第31卷(第5期);第111-113页 * |
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