CN107321819B - A kind of hot gyp's skill suitable for long narrow slat type part - Google Patents
A kind of hot gyp's skill suitable for long narrow slat type part Download PDFInfo
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- CN107321819B CN107321819B CN201710715114.8A CN201710715114A CN107321819B CN 107321819 B CN107321819 B CN 107321819B CN 201710715114 A CN201710715114 A CN 201710715114A CN 107321819 B CN107321819 B CN 107321819B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a kind of hot gyp's skills suitable for long narrow slat type part, it comprises the steps of: S101, selection part to be measured；The detection of S102, angularity；S103, it punctuates: label of punctuating being carried out to the maximum point of angularity in the plane, which is located on warpage crowning；S104, it melts down；S105, load: it is loaded at the part plane place of punctuating；S106, temper；S107, fire door is opened, is unloaded after air-cooled, detects the angularity of the plane.The invention has the benefit that passing through the technique for loading simultaneously temper on the point of long narrow slat type piece surface maximum angularity, solve the problems, such as long narrow slat type part warpage and deformation, the angularity of narrow major plate class piece surface can be made to be less than 0.05mm, the stress distribution of long narrow slat type inside parts is effectively improved, the service life of long narrow slat type part is improved.
Description
Technical field
The present invention relates to hot sizing technical field, especially a kind of hot gyp's skill suitable for long narrow slat type part.
Background technique
In preform mould production process, often use some long narrow slat type parts, such part due to its
Length-width ratio, slenderness ratio are larger, can there is biggish warpage in use for some time.Angularity, for stating plane in space
In bending degree, be numerically defined as distance of the warpage plane in the height direction apart from farthest point-to-point transmission.Warpage
Deformation is to evaluate one of the important indicator of product quality.The angularity of long narrow slat type part will directly affect its internal stress
Respectively, excessive warpage will generate not recoverable deformation and distortion, internal stress is caused to concentrate, and seriously affect such part
Normal use, therefore long narrow slat type part needs to improve its internal stress distribution through the processing of overheat school, reduce buckling deformation
Amount, improves the service life of part.But existing hot gyp's skill is directly adopted primarily directed in the part of the simply blocky class of structure
Hot school processing carried out to part with the mode of heating, however limitation of the long narrow slat type part due to its structure itself, Bu Nengzhi
It connects and directly carries out hot school processing to it using existing technique.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of hot schools suitable for long narrow slat type part
Technique improves the service life of long narrow slat type part the problem of being able to solve long narrow slat type part warpage and deform.
The purpose of the present invention is achieved through the following technical solutions: a kind of hot school suitable for long narrow slat type part
Technique, it is comprised the steps of:
S101, selection part to be measured: measuring the size of part to be measured, be denoted as length L, width B, thickness t respectively, determine to
It surveys part and Cleaning of Parts to be measured is removed into the impurity and particulate matter on its surface, wherein the standard for determining part to be measured is ruler
It is very little to meet following either condition: L/B >=40, L/t >=45；
The detection of S102, angularity: angularity detection is carried out in the plane where its long side to part to be detected, record should
The angularity a, a of plane are greater than 0.05mm；
S103, it punctuates: label of punctuating being carried out to the maximum point of angularity in the plane, which is located at warpage crowning
On；
S104, it melts down: the plate wiped clean of tempering furnace is ensured into its any surface finish, the part after punctuating is placed in tempering
On the plate of furnace, the warpage protrusion where punctuating is placed upwardly, is then placed standard cushion block at its both ends and is leveled, guarantees two
The top surface plane degree of block standard cushion block is less than 0.01mm；
S105, load: loading at the part plane place of punctuating, and the weight of load is 4-8 times of pts wt；
S106, temper: closing fire door, is tempered stove evacuation, is heated to 520-550 DEG C, keeps the temperature 2-5h；
S107, fire door is opened, is unloaded after air-cooled, detects the angularity of the plane: if the plane warping degree is less than
0.05mm, then hot school is completed；If the step of plane warping degree is still greater than 0.05mm, repeats S102 to S107 was until should
Plane warping degree is less than 0.05mm.
Wherein, the common instrument for detecting warpage is clearance gauge at present for the detection of angularity, is a kind of based on marble platform
Human contact's formula detection device, detection efficiency is low, is easy to cause to scratch to glass surface, and the unstable result of artificial detection.
Can also directly select angularity tester to measure, angularity tester can accomplish surface without scuffing, measurement accuracy and
It is high-efficient, it is easy to operate.
The width for melting down step Plays cushion block is greater than the width of part to be measured, and the thickness of standard cushion block is not less than
The thickness of part to be measured, standard cushion block with a thickness of 80-100mm, may insure at the heat of part in entire tempering process in this way
It is best to manage effect.
The leveling for melting down step Plays cushion block is that the adjustment of flatness is carried out by clearance gauge.
Its vacuum degree is 0.02-0.05MPa after being tempered stove evacuation in the temper step.
The S107 step hollow cold refers to carry out in the environment of 20-35 DEG C of temperature, humidity 80-85%.
The weight of the standard cushion block is 40-120kg, and the weight of the part to be measured is 10-15kg.
In the present invention, the purpose that the standard of part to be measured is arranged is to effectively improve the treatment effeciency of hot gyp's skill, long
The wide part bigger than, slenderness ratio, hot school treatment effect are more obvious, and a set of effective are directed to long narrow slat type to establish
Hot gyp's skill of part, applicant have just carried out the screening of part before temper.Part for being unsatisfactory for condition can
To use existing hot gyp's skill to handle.
The beneficial effects of the present invention are: by loading and being tempered on the point of long narrow slat type piece surface maximum angularity
Quenched technique solves the problems, such as long narrow slat type part warpage and deformation, can make sticking up for narrow major plate class piece surface
Curvature is less than 0.05mm, effectively improves the stress distribution of long narrow slat type inside parts, improves long narrow slat type part
Service life.
Specific embodiment
Technical solution of the present invention is described in further detail below with reference to embodiment, but protection scope of the present invention is not limited to
In as described below.
Embodiment 1
A kind of hot gyp's skill suitable for long narrow slat type part, it is comprised the steps of:
S101, selection part to be measured: measuring the size of part to be measured, is denoted as length L, width B respectively, and thickness t, L=
1200mm, B=30mm, t=15mm, pts wt 12kg determine part to be measured, by Cleaning of Parts to be measured, remove its surface
Impurity and particulate matter, wherein the standard for determining part to be measured is that size is all satisfied following condition: L/B >=40, L/t >=45；
The detection of S102, angularity: angularity detection is carried out in the plane where its long side to part to be detected, that is, is needed
Four faces are measured, the angularity a, a for recording these planes are greater than 0.05mm；
S103, it punctuates: being detected there are the point that 2 angularities are greater than 0.05mm in the plane, wherein angularity is most for selection
Big point carries out label of punctuating, which is located on warpage crowning；
S104, it melts down: the plate wiped clean of tempering furnace is ensured into its any surface finish, the part after punctuating is placed in tempering
On the plate of furnace, the warpage protrusion where punctuating is placed upwardly, is then placed standard cushion block at its both ends and is leveled, guarantees two
The top surface plane degree of block standard cushion block is less than 0.01mm；
S105, load: loading at the part plane place of punctuating, and the weight of load is 5 times of pts wt；
S106, temper: closing fire door, is tempered stove evacuation, is heated to 540 DEG C, keeps the temperature 3.5h；
S107, fire door is opened, is unloaded after air-cooled, detect the angularity of the plane: the plane warping degree is still greater than
0.05mm, then the step of repeating S102 to S107, is until the plane warping degree is less than 0.05mm.
Embodiment 2
A kind of hot gyp's skill suitable for long narrow slat type part, it is comprised the steps of:
S101, selection part to be measured: measuring the size of part to be measured, is denoted as length L, width B respectively, and thickness t, L=
1000mm, B=20mm, t=15mm, pts wt 10kg determine part to be measured, by Cleaning of Parts to be measured, remove the miscellaneous of its surface
Matter and particulate matter, wherein the standard for determining part to be measured is that size meets condition: L/t >=45；
The detection of S102, angularity: angularity detection is carried out in the plane where its long side to part to be detected, that is, is needed
Two faces are measured, the angularity a, a for recording these planes are greater than 0.05mm；
S103, it punctuates: label of punctuating being carried out to the maximum point of angularity in the plane, which is located at warpage crowning
On；
S104, it melts down: the plate wiped clean of tempering furnace is ensured into its any surface finish, the part after punctuating is placed in tempering
On the plate of furnace, the warpage protrusion where punctuating is placed upwardly, is then placed standard cushion block at its both ends and is leveled, guarantees two
The top surface plane degree of block standard cushion block is less than 0.01mm；
S105, load: loading at the part plane place of punctuating, and the weight of load is 4 times of pts wt；
S106, temper: closing fire door, is tempered stove evacuation, is heated to 520 DEG C, keeps the temperature 5h；
S107, fire door is opened, unload after air-cooled, detect the angularity of the plane: the plane warping degree is less than 0.05mm, then
It completes in hot school.
Embodiment 3
A kind of hot gyp's skill suitable for long narrow slat type part, it is comprised the steps of:
S101, selection part to be measured: measuring the size of part to be measured, is denoted as length L, width B respectively, and thickness t, L=
1200mm, B=28mm, t=20mm, pts wt 15kg determine part to be measured, by Cleaning of Parts to be measured, remove the miscellaneous of its surface
Matter and particulate matter, wherein the standard for determining part to be measured is that size meets following condition: L/B >=40；
The detection of S102, angularity: angularity detection is carried out in the plane where its long side to part to be detected, that is, is needed
Two faces are measured, the angularity a, a for recording these planes are greater than 0.05mm；
S103, it punctuates: label of punctuating being carried out to the maximum point of angularity in the plane, which is located at warpage crowning
On；
S104, it melts down: the plate wiped clean of tempering furnace is ensured into its any surface finish, the part after punctuating is placed in tempering
On the plate of furnace, the warpage protrusion where punctuating is placed upwardly, is then placed standard cushion block at its both ends and is leveled, guarantees two
The top surface plane degree of block standard cushion block is less than 0.01mm；
S105, load: loading at the part plane place of punctuating, and the weight of load is 8 times of pts wt；
S106, temper: closing fire door, is tempered stove evacuation, is heated to 550 DEG C, keeps the temperature 2h；
S107, fire door is opened, is unloaded after air-cooled, detect the angularity of the plane: the plane warping degree is still greater than
0.05mm, then the step of repeating S102 to S107, is until the plane warping degree is less than 0.05mm.
Embodiment 4
A kind of hot gyp's skill suitable for long narrow slat type part, it is comprised the steps of:
S101, selection part to be measured: measuring the size of part to be measured, is denoted as length L, width B respectively, and thickness t, L=
1100mm, B=20mm, t=20mm, pts wt 10kg determine part to be measured, by Cleaning of Parts to be measured, remove the miscellaneous of its surface
Matter and particulate matter, wherein the standard for determining part to be measured is that size meets following either condition: L/B >=40, L/t >=45；
The detection of S102, angularity: angularity detection is carried out in the plane where its long side to part to be detected, that is, is needed
Four faces are measured, the angularity a, a for recording these planes are greater than 0.05mm；
S103, it punctuates: label of punctuating being carried out to the maximum point of angularity in the plane, which is located at warpage crowning
On；
S104, it melts down: the plate wiped clean of tempering furnace is ensured into its any surface finish, the part after punctuating is placed in tempering
On the plate of furnace, the warpage protrusion where punctuating is placed upwardly, is then placed standard cushion block at its both ends and is leveled, guarantees two
The top surface plane degree of block standard cushion block is less than 0.01mm；
S105, load: loading at the part plane place of punctuating, and the weight of load is 6 times of pts wt；
S106, temper: closing fire door, is tempered stove evacuation, is heated to 535 DEG C, keeps the temperature 3h；
S107, fire door is opened, unload after air-cooled, detect the angularity of the plane: the plane warping degree is less than 0.05mm, then
It completes in hot school.
Embodiment 5
A kind of hot gyp's skill suitable for long narrow slat type part, it is comprised the steps of:
S101, selection part to be measured: measuring the size of part to be measured, is denoted as length L, width B respectively, and thickness t, L=
1300mm, B=35mm, t=20mm, pts wt 10.5kg determine part to be measured, by Cleaning of Parts to be measured, remove its surface
Impurity and particulate matter, wherein the standard for determining part to be measured is that size meets following condition: L/B >=40, L/t >=45；
The detection of S102, angularity: angularity detection is carried out in the plane where its long side to part to be detected, that is, is needed
Four faces are measured, the angularity a, a for recording these planes are greater than 0.05mm；
S103, it punctuates: label of punctuating being carried out to the maximum point of angularity in the plane, which is located at warpage crowning
On；
S104, it melts down: the plate wiped clean of tempering furnace is ensured into its any surface finish, the part after punctuating is placed in tempering
On the plate of furnace, the warpage protrusion where punctuating is placed upwardly, is then placed standard cushion block at its both ends and is leveled, guarantees two
The top surface plane degree of block standard cushion block is less than 0.01mm；
S105, load: loading at the part plane place of punctuating, and the weight of load is 4 times of pts wt；
S106, temper: closing fire door, is tempered stove evacuation, is heated to 540 DEG C, keeps the temperature 2.5h；
S107, fire door is opened, is unloaded after air-cooled, detect the angularity of the plane: the plane warping degree is still greater than
0.05mm, then the step of repeating S102 to S107, is until the plane warping degree is less than 0.05mm.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (6)
1. a kind of hot gyp's skill suitable for long narrow slat type part, which is characterized in that it is comprised the steps of:
S101, selection part to be measured: the size of part to be measured is measured, is denoted as length L, width B respectively, thickness t determines to be measured zero
Cleaning of Parts to be measured is removed the impurity and particulate matter on its surface by part, wherein the standard for determining part to be measured is that size is full
The following either condition of foot: L/B >=40, L/t >=45；
The detection of S102, angularity: angularity detection is carried out in the plane where its long side to part to be detected, records the plane
Angularity a, a is greater than 0.05mm；
S103, it punctuates: label of punctuating being carried out to the maximum point of angularity in the plane, which is located on warpage crowning；
S104, it melts down: the plate wiped clean of tempering furnace is ensured into its any surface finish, the part merging tempering furnace after punctuating
On plate, the warpage protrusion where punctuating is placed upwardly, is then placed standard cushion block at its both ends and is leveled, and guarantees two pieces of marks
The top surface plane degree of quasi- cushion block is less than 0.01mm；
S105, load: loading at the part plane place of punctuating, and the weight of load is 4-8 times of pts wt；
S106, temper: closing fire door, is tempered stove evacuation, is heated to 520-550 DEG C, keeps the temperature 2-5h；
S107, fire door is opened, is unloaded after air-cooled, detects the angularity of the plane: if the plane warping degree is less than 0.05mm,
It completes in hot school；If the step of plane warping degree is still greater than 0.05mm, repeats S102 to S107 is until the plane warping
Degree is less than 0.05mm.
2. a kind of hot gyp's skill suitable for long narrow slat type part according to claim 1, it is characterised in that: described
The width for melting down step Plays cushion block is greater than the width of part to be measured, and the thickness of standard cushion block is not less than the thickness of part to be measured
Degree, standard cushion block with a thickness of 80-100mm.
3. a kind of hot gyp's skill suitable for long narrow slat type part according to claim 1, it is characterised in that: described
The leveling for melting down step Plays cushion block is that the adjustment of flatness is carried out by clearance gauge.
4. a kind of hot gyp's skill suitable for long narrow slat type part according to claim 1, it is characterised in that: described
Its vacuum degree is 0.02-0.05MPa after being tempered stove evacuation in temper step.
5. a kind of hot gyp's skill suitable for long narrow slat type part according to claim 1, it is characterised in that: described
S107 step hollow cold refers to carry out in the environment of 20-35 DEG C of temperature, humidity 80-85%.
6. a kind of hot gyp's skill suitable for long narrow slat type part according to claim 1, it is characterised in that: described
The weight of standard cushion block is 40-120kg, and the weight of the part to be measured is 10-15kg.
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| JP3264795B2 (en) * | 1995-06-27 | 2002-03-11 | 新日本製鐵株式会社 | Method and apparatus for correcting warpage of hot rolled material |
| CN102009088B (en) * | 2010-10-18 | 2012-11-21 | 武汉华夏精冲技术有限公司 | Method for correcting planeness of large-dimension thin-plate parts |
| JP5626172B2 (en) * | 2011-09-30 | 2014-11-19 | 新日鐵住金株式会社 | Steel strip manufacturing equipment |
| CN103302141B (en) * | 2013-06-09 | 2015-05-13 | 西安天元航空科技有限公司 | Disc-shaped panel leveling device and disc-shaped panel leveling method |
| CN105598217B (en) * | 2015-12-30 | 2017-10-17 | 中国第二重型机械集团德阳万航模锻有限责任公司 | The constant temperature and pressure aligning method of titanium alloy die forging part warpage |
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Denomination of invention: A Hot Calibration Process for Narrow and Long Slatted Parts Effective date of registration: 20220830 Granted publication date: 20181228 Pledgee: Chengdu financial holding Financing Guarantee Co.,Ltd. Pledgor: CHENGDU LIANYU PRECISION MACHINERY Co.,Ltd. Registration number: Y2022510000257 |
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