CN108754349A - A kind of high strength heavy type spring support hanging frame - Google Patents
A kind of high strength heavy type spring support hanging frame Download PDFInfo
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- CN108754349A CN108754349A CN201810516439.8A CN201810516439A CN108754349A CN 108754349 A CN108754349 A CN 108754349A CN 201810516439 A CN201810516439 A CN 201810516439A CN 108754349 A CN108754349 A CN 108754349A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
-
- 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
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/205—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs
- F16L3/2056—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs the axis of at least one spring being oblique or perpendicular to the direction of the movement of the pipe
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of high strength heavy type spring support hanging frames, are related to suspension and support technical field, including pipe clamp, and pipe clamp is made of steel plate blank, and the chemical composition and mass percent of the steel plate blank are as follows：C：0.7~1.2%, P：0.2~0.8%, S：1.0~2.2%, Ca：0.005~0.02%, TiCN：1.3~1.9%, ZrN：1.1~2.0%, molybdenum：0.04~0.15%, chromium：0.1~1.1%, nickel：0.1~1.1%, Cr：1.3~1.5%, V：1.1~1.7%, Nb：0.9~1.2%, rare earth：1.2~2.2%, surplus is Fe and inevitable impurity.The present invention had not only improved the intensity of pipe clamp, but also improved the crocking resistance and high temperature resistance of pipe clamp.
Description
Technical field
The present invention relates to suspension and support technical fields, more particularly to a kind of high strength heavy type spring support hanging frame.
Background technology
Suspension and support is mainly used for power plant steam-water pipe or boiler plant, generates thermal walking and its apparatus in operation
On, it expands with heat and contract with cold the additional stress brought to reduce pipeline, spring support hanging frame is widely used in industries such as electric power, petrochemical industry,
Existing spring support hanging frame is mainly by cylindrical outer casing, upper cover plate, lower cover, hanging ring, spring, pressing plate, load screw rod, spends blue spiral shell
Female and locking pin composition, the upper/lower terminal of shell sets upper cover plate respectively and the upper end of lower cover, upper cover plate is equipped with hanging ring,
The inside of shell sets coaxial spring, spring inner axis direction be equipped with a root diameter to load screw rod, load screw rod
Upper end be connected with the pressing plate for being located at spring upper end, the lower end of load screw rod is connected with blue nut is spent, on lower cover be equipped with can
For the through-hole of tightening nut upper and lower displacement, above-mentioned shell is equipped with the locking pin for playing and limiting pressing plate；But this spring branch is hung
Frame is easy to wear when using, and intensity is low, and service life is short.
Invention content
Easy to wear when being used the technical problem to be solved by the present invention is to existing spring support hanging frame, intensity is low, uses the longevity
It orders short.
In order to solve the above technical problems, the present invention provides a kind of high strength heavy type spring support hanging frame, including cylinder and
The spring being arranged in cylinder, the spring centre are equipped with pull rod, and the pull rod upper end is equipped with spring bearer plate, and lower end is equipped with pipe
Folder, the spring bearer plate are located above spring, and the pipe clamp is made of steel plate blank, the chemical composition and matter of the steel plate blank
It is as follows to measure percentage：C：0.7~1.2%, P：0.2~0.8%, S：1.0~2.2%, Ca：0.005~0.02%, TiCN：1.3
~1.9%, ZrN：1.1~2.0%, molybdenum：0.04~0.15%, chromium：0.1~1.1%, Cr：1.3~1.5%, V：1.1~
1.7%, Nb：0.9~1.2%, rare earth：1.2~2.2%, surplus is Fe and inevitable impurity.
Technique effect：The pipe clamp below pull rod is arranged for support and fixed -piping in the present invention, and pipe clamp is by steel plate blank
It is made, the TiCN and ZrN in steel plate blank can form a series of hard coats on pipe clamp surface, on the one hand can improve pipe clamp
Intensity and case hardness, the rub resistance ability of pipe clamp on the other hand can be improved, in addition, since pipe clamp needs to bear pipeline
Friction, can so that hard coat is detached from pipe clamp surface easily, and the transition metal Cr in the present invention, there is certain bonding to make
With the ratio that hard coat and pipe clamp combine can be made stronger, make it be not easy to be detached from pipe clamp easily and be effectively protected pipe clamp, carry
The service life of high pipe clamp, in addition, molybdenum and chromium that the present invention adds can improve the seal of steel plate blank so that extraneous
In the erosion to pipe clamp that moisture can not be successfully, the corrosion resistance and crocking resistance of pipe clamp, antifriction effect are further increased
Obviously, the friction between pipeline and pipe clamp is reduced, the service life of pipe clamp is further increased.
The technical solution that the present invention further limits is：The chemical composition and mass percent of the steel plate blank are as follows：
C：0.95%, P：0.5%, S：1.6%, Ca：0.0125%, TiCN：1.6%, ZrN：1.55%, molybdenum：0.095%, chromium：
0.6%, Cr：1.4%, V：1.4%, Nb：1.05%, rare earth：1.7%, surplus is Fe and inevitable impurity.
Further, the chemical composition and mass percent of the steel plate blank are as follows：C：1.2%, P：0.8%, S：
2.2%, Ca：0.02%, TiCN：1.9%, ZrN：2.0%, molybdenum：0.15%, chromium：1.1%, Cr：1.5%, V：1.7%, Nb：
1.2%, rare earth：2.2%, surplus is Fe and inevitable impurity.
A kind of preceding high strength heavy type spring support hanging frame, the preparation of the steel plate blank include the following steps：
T1, C, P, S, Ca, TiCN, ZrN, molybdenum, chromium, Cr, V, Nb, rare earth and Fe are put into smelting furnace, smelting furnace furnace temperature liter
To 810 DEG C -860 DEG C, it is sufficiently stirred after furnace charge all melts, and 2-3h is kept the temperature at 810 DEG C -860 DEG C；Wait for liquid temperature
Degree is sufficiently stirred when being cooled to 700-750 DEG C, and refining agent refining slagging-off 15min-25min is added at 700-750 DEG C,
Alloy solution is made；
T2 and then alloy solution is heated to 910-930 DEG C, is poured into a mould, obtain steel plate blank；
T3, using the burr on ball blast technical finesse steel plate blank；
T4, steel plate blank is strengthened using a normalizing+double tempering.
A kind of preceding high strength heavy type spring support hanging frame, in the T4, a normalizing+double tempering includes following step
Suddenly：First normalizing：Steel plate blank is heated to 530-620 DEG C, to temperature after keep the temperature 15-20min, be then air-cooled to room temperature；Again first
Secondary tempering：Steel plate blank is heated to 620-730 DEG C, to temperature after keep the temperature 10-15min, then water cooling to room temperature, then carries out
Double tempering；Steel plate blank is heated to 760-800 DEG C, to temperature after keep the temperature 30-35min, be then air-cooled to room temperature.
A kind of preceding high strength heavy type spring support hanging frame, in the T3, the pellet that ball blast technology uses is to be passivated height
Violent steel wire shot, and the pellet requires to have corner angle, cleaning, drying, does not have greasy dirt.
The speed of a kind of preceding high strength heavy type spring support hanging frame, water cooling is 15-80 DEG C/s.
The beneficial effects of the invention are as follows：
(1) V element is added in the present invention, the intensity of steel plate blank and toughness with crystal grain thinning, can be made to improve 11-13%, in addition,
The Nb and V of addition have high temperature resistance, the high temperature resistance of steel plate blank can be improved, to ensure pipe clamp in hot environment
In service life, S, molybdenum and the nickel of addition can form nickel-molybdenum disulfide at high temperature, and molybdenum disulfide has stronger lubrication
Effect, and mechanical entrainment makes its lubricity further increase in nickel layer, to improve the smoothness on pipe clamp surface, and then subtracts
The slow friction between pipeline slows down itself and the abrasion to pipeline；
(2) intensive treatment is carried out to steel plate blank using a normalizing+double tempering in the present invention, can largely improved
The intensity and weatherability of steel plate blank itself further improve the hard of steel plate blank itself using the technique of surface peening
Degree and toughness, improve the service life of pipe clamp；
(3) Shot Blasting is carried out to steel plate blank in the present invention, its surface is made to be pierced without hard, it is more smooth, so as to avoid the later stage
Pipeline is caused to scratch.
Description of the drawings
Fig. 1 is structural schematic diagram of the present invention for embodying pipe clamp.
Wherein：1, cylinder；2, pull rod；21, spring bearer plate；3, spring；4, pipe clamp.
Specific implementation mode
Embodiment 1：A kind of high strength heavy type spring support hanging frame, as shown in Figure 1, including cylinder 1 and being arranged in cylinder 1
Spring 3, be equipped with pull rod 2 among the spring 3,2 upper end of pull rod is equipped with spring bearer plate 21, and lower end is equipped with pipe clamp 4, spring bearer plate
21 are located at 3 top of spring.
Pipe clamp 4 is made of steel plate blank, and the chemical composition and mass percent of steel plate blank are as follows：C：0.7~1.2%,
P：0.2~0.8%, S：1.0~2.2%, Ca：0.005~0.02%, TiCN：1.3~1.9%, ZrN：1.1~2.0%, molybdenum：
0.04~0.15%, chromium：0.1~1.1%, nickel：0.1~1.1%, Cr：1.3~1.5%, V：1.1~1.7%, Nb：0.9~
1.2%, rare earth：1.2~2.2%, surplus be Fe and inevitable impurity, the present embodiment selection steel plate blank chemistry at
Divide and content is as follows：C：0.95kg, P：0.5kg, S：1.6kg, Ca：0.0125kg, TiCN：1.6kg, ZrN：1.55kg molybdenum：
0.095kg, chromium：0.6kg, nickel：0.6kg, Cr：1.4kg, V：1.4kg, Nb：1.05kg rare earth：1.7kg, surplus is for Fe and not
Evitable impurity.
The preparation of steel plate blank includes the following steps：
T1, C, P, S, Ca, TiCN, ZrN, molybdenum, chromium, nickel, Cr, V, Nb, rare earth and Fe are put into smelting furnace, smelting furnace furnace temperature
810 DEG C -860 DEG C are risen to, is sufficiently stirred after furnace charge all melts, and 2-3h is kept the temperature at 810 DEG C -860 DEG C；Wait for liquid
It is sufficiently stirred when greenhouse cooling is to 700-750 DEG C, and refining agent refining slagging-off 15min- is added at 700-750 DEG C
Alloy solution is made in 25min；
T2 and then alloy solution is heated to 910-930 DEG C, is poured into a mould, obtain steel plate blank；
T3, using the burr on ball blast technical finesse steel plate blank, wherein the pellet that ball blast technology uses is the high violent steel wire of passivation
Shot, and the pellet requires to have corner angle, cleaning, drying, does not have greasy dirt.
T4, steel plate blank is strengthened using a normalizing+double tempering, one time normalizing+double tempering includes following
Step：First normalizing：Steel plate blank is heated to 530-620 DEG C, to temperature after keep the temperature 15-20min, be then air-cooled to room temperature；Again
Primary tempering：Steel plate blank is heated to 620-730 DEG C, to temperature after keep the temperature 10-15min, then water cooling to room temperature, then carries out
Second of tempering；Steel plate blank is heated to 760-800 DEG C, to temperature after keep the temperature 30-35min, be then air-cooled to room temperature, water cooling
Speed is 15 80 DEG C/s.
Embodiment 2：A kind of high strength heavy type spring support hanging frame, difference from Example 1 be, the steel plate blank of selection
Chemical composition and content it is as follows：C：1.2kg, P：0.8kg, S：2.2kg, Ca：0.02kg, TiCN：1.9kg, ZrN：2.0kg
Molybdenum：0.15kg, chromium：1.1kg, nickel：1.1kg, Cr：1.5kg, V：1.7kg, Nb：1.2kg, rare earth：2.2kg, surplus is for Fe and not
Evitable impurity.
Embodiment 3：A kind of high strength heavy type spring support hanging frame, difference from Example 1 be, the steel plate blank of selection
Chemical composition and content it is as follows：C：0.7kg, P：0.2kg, S：1.0kg, Ca：0.005kg, TiCN：1.3kg, ZrN：1.1kg
Molybdenum：0.04kg, chromium：0.1kg, nickel：0.1kg, Cr：1.3kg, V：1.1kg, Nb：0.9kg, rare earth：1.2kg, surplus is for Fe and not
Evitable impurity.
Experimentation and data are as follows：
Existing market is tested respectively using Vickers to have sold obtained by pipe clamp, embodiment 1, embodiment 2 and embodiment 3
Steel plate blank made from pipe clamp hardness, pipe clamp has been sold to market respectively, embodiment 1, embodiment 2 and embodiment 3 apply
35 kilograms of test force is kept for 30 seconds；
By the above test result it is found that pipe clamp hardness and tensile strength in 1~embodiment of embodiment 3 are apparently higher than existing pipe clamp
Hardness, it is known that the intensity of pipe clamp of the present invention is greatly increased, by resistance to extreme temperature it is found that in 1~embodiment of embodiment 3
Pipe clamp has high temperature resistance, and 1~embodiment of embodiment 3 is notable to the reduction degree of confficient of static friction, can slow down pipe clamp
Friction between pipeline, therefore, the present invention had not only improved the intensity of pipe clamp, but also improved the crocking resistance of pipe clamp and resistance to
High-temperature behavior.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (7)
1. a kind of high strength heavy type spring support hanging frame, including cylinder（1）And it is arranged in cylinder（1）Interior spring（3）, the bullet
Spring（3）Centre is equipped with pull rod（2）, the pull rod（2）Upper end is equipped with spring bearer plate（21）, lower end is equipped with pipe clamp（4）, the spring
Pressing plate（21）Positioned at spring（3）Top, it is characterised in that：The pipe clamp（4）It is made of steel plate blank, the change of the steel plate blank
It studies point and mass percent is as follows：C：0.7~1.2%, P：0.2~0.8%, S：1.0~2.2%, Ca：0.005~
0.02%, TiCN：1.3~1.9%, ZrN：1.1~2.0%, molybdenum：0.04~0.15%, chromium：0.1~1.1%, nickel：0.1~
1.1%, Cr：1.3~1.5%, V：1.1~1.7%, Nb：0.9~1.2%, rare earth：1.2~2.2%, surplus is Fe and can not
The impurity avoided.
2. a kind of high strength heavy type spring support hanging frame according to claim 1, it is characterised in that：The change of the steel plate blank
It studies point and mass percent is as follows：C：0.95%, P：0.5%, S：1.6%, Ca：0.0125%, TiCN：1.6%, ZrN：
1.55%, molybdenum：0.095%, chromium：0.6%, nickel：0.6%, Cr：1.4%, V：1.4%, Nb：1.05%, rare earth：1.7%, it is remaining
Amount is Fe and inevitable impurity.
3. a kind of high strength heavy type spring support hanging frame according to claim 1, it is characterised in that：The change of the steel plate blank
It studies point and mass percent is as follows：C：1.2%, P：0.8%, S：2.2%, Ca：0.02%, TiCN：1.9%, ZrN：
2.0%, molybdenum：0.15%, chromium：1.1%, nickel：1.1%, Cr：1.5%, V：1.7%, Nb：1.2%, rare earth：2.2%, surplus is
Fe and inevitable impurity.
4. a kind of high strength heavy type spring support hanging frame according to claim 1, it is characterised in that：The system of the steel plate blank
It is standby to include the following steps：
T1, C, P, S, Ca, TiCN, ZrN, molybdenum, chromium, nickel, Cr, V, Nb, rare earth and Fe are put into smelting furnace, smelting furnace furnace temperature
810 DEG C -860 DEG C are risen to, is sufficiently stirred after furnace charge all melts, and 2-3h is kept the temperature at 810 DEG C -860 DEG C；Wait for liquid
It is sufficiently stirred when greenhouse cooling is to 700-750 DEG C, and refining agent refining slagging-off 15min- is added at 700-750 DEG C
Alloy solution is made in 25min；
T2 and then alloy solution is heated to 910-930 DEG C, is poured into a mould, obtain steel plate blank；
T3, using the burr on ball blast technical finesse steel plate blank；
T4, steel plate blank is strengthened using a normalizing+double tempering.
5. a kind of high strength heavy type spring support hanging frame according to claim 4, it is characterised in that：In the T4, once just
Fire+double tempering includes the following steps：First normalizing：Steel plate blank is heated to 530-620 DEG C, to temperature after keep the temperature 15-20min,
Then it is air-cooled to room temperature；It is tempered for the first time again：Steel plate blank is heated to 620-730 DEG C, to temperature after keep the temperature 10-15min, then
Then water cooling carries out being tempered for second to room temperature；Steel plate blank is heated to 760-800 DEG C, to temperature after keep the temperature 30-35min, so
After be air-cooled to room temperature.
6. a kind of high strength heavy type spring support hanging frame according to claim 4, it is characterised in that：In the T3, ball blast skill
The pellet that art uses is the high violent steel wire shot of passivation, and the pellet requires to have corner angle, cleaning, drying, do not have greasy dirt.
7. a kind of high strength heavy type spring support hanging frame according to claim 5, it is characterised in that：The speed of wherein water cooling is
15 80℃/s。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516439.8A CN108754349A (en) | 2018-05-25 | 2018-05-25 | A kind of high strength heavy type spring support hanging frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516439.8A CN108754349A (en) | 2018-05-25 | 2018-05-25 | A kind of high strength heavy type spring support hanging frame |
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| CN108754349A true CN108754349A (en) | 2018-11-06 |
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| CN107940118A (en) * | 2017-11-17 | 2018-04-20 | 江苏壹鼎崮机电科技有限公司 | A kind of good fixing effect stablizes locking antidetonation suspension and support |
| CN207394122U (en) * | 2017-08-09 | 2018-05-22 | 扬中奇佩智能装配科技有限公司 | A kind of adjustable spring suspension and support |
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| JP2001164332A (en) * | 1999-12-09 | 2001-06-19 | Nkk Corp | Cr-Mo STEEL HAVING HIGH TOUGHNESS AND REHEAT CRACKING RESISTANCE AND PRODUCING METHOD THEREFOR |
| JP2002003985A (en) * | 2000-06-20 | 2002-01-09 | Nippon Steel Corp | High tensile steel excellent in strength at high temperature, and its manufacturing method |
| CN205298838U (en) * | 2015-12-17 | 2016-06-08 | 倍德力能源装备（江苏）有限公司 | Constant force spring hanger |
| CN207394122U (en) * | 2017-08-09 | 2018-05-22 | 扬中奇佩智能装配科技有限公司 | A kind of adjustable spring suspension and support |
| CN207145762U (en) * | 2017-08-30 | 2018-03-27 | 江苏友恒机械有限公司 | A kind of hanging type variable-force spring hanger of easy disassembly |
| CN107504274A (en) * | 2017-09-26 | 2017-12-22 | 扬中市传盛支吊架有限公司 | A kind of pipeline spring support hanging frame |
| CN107514291A (en) * | 2017-09-30 | 2017-12-26 | 南京赛达机械制造有限公司 | A kind of turbine blade of resistance to water erosion and preparation method thereof |
| CN107650026A (en) * | 2017-11-13 | 2018-02-02 | 江苏飞腾铸造机械有限公司 | A kind of ball blast technique method for steel plate |
| CN107841678A (en) * | 2017-11-13 | 2018-03-27 | 江苏飞腾铸造机械有限公司 | A kind of ball blast technique pellet and preparation method thereof |
| CN107940118A (en) * | 2017-11-17 | 2018-04-20 | 江苏壹鼎崮机电科技有限公司 | A kind of good fixing effect stablizes locking antidetonation suspension and support |
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