CN107893151A - The method of work of casting quenching unit - Google Patents
The method of work of casting quenching unit Download PDFInfo
- Publication number
- CN107893151A CN107893151A CN201711242283.0A CN201711242283A CN107893151A CN 107893151 A CN107893151 A CN 107893151A CN 201711242283 A CN201711242283 A CN 201711242283A CN 107893151 A CN107893151 A CN 107893151A
- Authority
- CN
- China
- Prior art keywords
- spherical cavity
- plate
- casting
- cover plate
- cavity
- 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.)
- Pending
Links
Classifications
-
- 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
- C21D1/62—Quenching devices
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention belongs to heat treatment equipment, specifically disclose a kind of method of work of casting quenching unit, including base, spherical cavity, the output end welding vertical rod of hydraulic cylinder, the one end of vertical rod away from hydraulic cylinder is fixedly connected with supporting plate, and transmission ring is provided between upper spherical cavity and lower spherical cavity；Transmission ring is divided into inner panel, outside plate, connecting plate, and inner panel is fixedly connected with outside plate by connecting plate, and inner panel and outside plate are connected plate and are separated to form upper and lower cavity, upper spherical cavity and lower spin is evenly distributed between spherical cavity and connecting plate；The external peripheral surface of outside plate is provided with from gear, the inner circumferential surface of inner panel and is provided with fanning strip, and the side wall of base is provided with riser, and the top of riser is provided with motor, and the output end of motor is provided with master gear；Cover plate is hinged with the top of upper spherical cavity, the surface of cover plate is provided with the aspiration pump that input port is located inside upper spherical cavity；This programme may be such that water temperature balances, and can absorb flue gas in time, avoid staff's inhalation poisoning.
Description
Technical field
The invention belongs to heat treatment equipment, specifically discloses a kind of method of work of casting quenching unit.
Background technology
Casting quenching follow Heat-Treatment of Steel rule, should through hardening layer it is good, obtain quenched martensite, avoid again deformation with
Cracking.During quenching should from it is following it is several in terms of set about.
1. cleaning out workpiece surface before heat treating castings, should be cut by overlap blind bore eye.
2. according to the transformation feature of the continuous transformation phasor of cast iron, temperature stage more than 650 DEG C does not simultaneously need rapid cooling,
Carbon steel needs rapid cooling near 650~550 DEG C of temperature, and rapid cooling is not needed below 400 DEG C, the formation area 300 of martensite~
200 DEG C more should Slow cooling.Generally, casting leaving water temperature is at 300~200 DEG C, it is possible to obtains satisfied quench
Fiery effect.
3. steel-casting uses water hardening more, water temperature is controlled at 40 DEG C, should be quiet in the martensite transfor mation stage of low temperature
Cooled down in water only, or be transferred in oil and cool down.
4. blind hole and groove for cast shape enter that water mode should be noted that typically to follow is to make such shape court
On, it is easy to steam to exclude during quenching, increases quenching degree.
5. the bigger casting of alloy steel casting or wall thickness for the easy cracking of water quenching can contemplate using water oil biliquid
Quenching Treatment, prevent hardening break.
Quenching unit is needed to use when casting quenches, but existing quenching unit can not enter to the water of quenching
Row stirs, and makes the temperature of water uneven, reduces the effect of casting quenching, reduce the quality after casting quenching, so as to be made
The use of user is made troubles；And casting, when contacting water, boiling and cast(ing) surface that water can be violent produce acutely anti-
Substantial amounts of flue gas should can be produced, these flue gases can hinder the sight of people so that staff can not observe the quenching situation of casting,
Operation is influenceed, influences the quality of casting quenching；Mostly containing noxious materials such as heavy metals, remove to influence not in time these flue gases
The health of staff.
The content of the invention
The purpose of the present invention is providing a kind of method of work of casting quenching unit, may be such that water temperature balances, and can and
When absorb flue gas, avoid staff's inhalation poisoning.
In order to achieve the above object, base case of the invention is：Spherical cavity including base, for filling water；The spherical cavity
It is divided into removably upper spherical cavity and lower spherical cavity, the base and is provided with hydraulic cylinder, the output end of the hydraulic cylinder is provided with vertical rod, stands
Bar stretches into lower spherical cavity and is connected with the basal sliding of lower spherical cavity, and the one end of vertical rod away from hydraulic cylinder is fixedly connected with supporting plate, base
Some support bars for being used for supporting and fix down spherical cavity are provided with, transmission ring is provided between the upper spherical cavity and lower spherical cavity, it is described
Transmission ring is divided into inner panel, outside plate, connecting plate, and inner panel is fixedly connected with outside plate by connecting plate, and inner panel and outside plate are connected plate point
Every forming upper and lower cavity, the basal sliding of upper spherical cavity is connected to cavity, and the top slide of lower spherical cavity is connected to lower cavity, on
Spherical cavity and lower spin is evenly distributed between spherical cavity and connecting plate；The external peripheral surface of the outside plate is provided with a circle from gear, institute
The inner circumferential surface for stating inner panel is provided with some fanning strips, and the side wall of the base is provided with riser, and the top of the riser is provided with electricity
Machine, the output end of motor are provided with the master gear engaged with from gear；Cover plate is hinged with the top of the upper spherical cavity, the cover plate
Surface is provided with the aspiration pump that input port is located inside upper spherical cavity；Also include following method of work：
(1) before use, adding water to spherical cavity using water pump, then cover plate is closed, pretrigger motor 5 minutes, observes motor
On master gear and the situation that engages from gear on transmission ring, and in engagement place lube oil injection, stop motor, treat spherical cavity
In it is horizontal it is quiet after carry out follow-up casting quenching work again；
(2) in use, opening cover plate, hydraulic cylinder is started, operation hydraulic cylinder causes under supporting plate after casting is placed into supporting plate
Row floods casting to water, closes cover plate, now starts motor；After motor works 20 minutes, operation motor reversal 20 minutes,
With this reciprocating operation；Cover plate starts aspiration pump while closing；Cover plate was opened once every 10 minutes, was closed after continuing 30 seconds；
(3) after use, after casting quenches, it is up to start Hydraulic Cylinder supporting plate so that casting leaves the water surface still
Do not take out, still close cover plate, the air of cast(ing) surface is taken away using aspiration pump, forms local negative pressure, is easy to casting table
The evaporation of face moisture；Cover plate is opened afterwards, takes out casting.
The operation principle and effect of this base case are：Spherical cavity, which is divided into, removably goes up spherical cavity and lower spherical cavity, on base
Provided with hydraulic cylinder, the output end of hydraulic cylinder is provided with vertical rod, and vertical rod is stretched into lower spherical cavity and is connected with the basal sliding of lower spherical cavity, lower ball
Chamber is fixed by they sup-port, the motion above and below Driven by Hydraulic Cylinder vertical rod, and the up supporting plate caused at the top of vertical rod of vertical rod stretches out
The casting for needing to be quenched is put into supporting plate by upper spherical cavity, staff, and hydraulic cylinder drives vertical rod descending, and then causes on supporting plate
Casting, which is submerged in the water in spherical cavity, realizes quenching.Transmission ring is provided between upper spherical cavity and lower spherical cavity, transmission ring is used for spherical cavity
The water at middle part is stirred；Transmission ring is divided into inner panel, outside plate, connecting plate, and inner panel is fixedly connected with outside plate by connecting plate, inner panel
Plate is connected with outside plate and is separated to form upper and lower cavity, and the basal sliding of upper spherical cavity is connected to cavity, the top slide of lower spherical cavity
Be connected to lower cavity, upper spherical cavity and lower spherical cavity can produce relative motion in the presence of spin with transmission ring, outside plate it is cylindrical
Perimeter surface is provided with a circle and is provided with some fanning strips from gear, the inner circumferential surface of inner panel, drives rotation to make from gear by master gear
Transmission ring have sent rotations relative to upper spherical cavity and lower spherical cavity, upper spherical cavity and lower spherical cavity is static and transmission ring rotation so that interior
Fanning strip on plate can stir to the water in spherical cavity, because transmission ring is located at the middle part of spherical cavity, the radius that fanning strip rotates
It is position maximum in whole spherical cavity, fanning strip rotates one week can drive more water to participate in compared to other mixing positions
The flowing of liquid in spherical cavity, so when accelerating quenching spherical cavity reclaimed water temperature diffusion so that the even water temperature in spherical cavity；Pass
Rotating ring is located at the middle part of spherical cavity, is transmitted distance that the dynamic water of annulus is either diffused up or spread downwards substantially phase
Deng, therefore it is identical from the time case of the upward spherical cavity of transmission ring or lower spherical cavity transmission temperature, temperature can be quickly driven
To both ends so that the temperature of the water in spherical cavity can more uniformly the first half to spherical cavity and next portion transmit respectively, promote
The uniformity of the temperature degree of water in spherical cavity, and then improve the quenching quality of casting.Cover plate is hinged with the top of upper spherical cavity,
The surface of cover plate is provided with the aspiration pump that input port is located inside upper spherical cavity, and aspiration pump quickly can inhale flue gas caused by quenching
Receive, avoid staff from sucking toxic gas, prevent from being poisoned.
Further, upper spherical cavity and the junction of lower spherical cavity and transmission ring are provided with sealing ring, avoid the water in spherical cavity from leaking.
Further, the surface smear lubricating oil of spin, friction, the service life of extension device are reduced.
Further, support bar is symmetrically distributed in vertical rod both sides, symmetrical so that support is more stable.
Further, cover plate and the junction of upper spherical cavity are provided with sealing shroud, prevent harmful smoke spillage, avoid staff
Suck toxic gas and be poisoned.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the structural representation of transmission ring of the present invention.
Embodiment
Below by the further details of explanation of embodiment：
Reference in Figure of description includes：Base 1, hydraulic cylinder 2, support bar 3, lower spherical cavity 4, transmission ring 5, upper ball
Chamber 6, cover plate 7, aspiration pump 8, master gear 9, motor 10, riser 11, supporting plate 12, vertical rod 13, fanning strip 14, from gear 15, spin
16。
Embodiment is substantially as accompanying drawing 1, Fig. 2 show：
Casting quenching unit, including base 1, the transparent spherical cavity for filling water；Spherical cavity is divided equally along middle part to be divided into detachably
Upper spherical cavity 6 and lower spherical cavity 4, base 1 be provided with hydraulic cylinder 2, the output end welding vertical rod 13 of hydraulic cylinder 2, vertical rod 13 is stretched into down
Spherical cavity 4 is simultaneously connected with the basal sliding of lower spherical cavity 4, and the one end of vertical rod 13 away from hydraulic cylinder 2 is fixedly connected with supporting plate 12, base 1
Some support bars 3 for being used for supporting and fix down spherical cavity 4 are provided with, transmission ring 5, upper ball are provided between upper spherical cavity 6 and lower spherical cavity 4
Chamber 6 and lower spherical cavity 4 and the junction of transmission ring 5 are provided with sealing ring；Transmission ring 5 divides for inner panel, outside plate, connecting plate, inner panel and outer
Plate is fixedly connected by connecting plate, and inner panel and outside plate are connected plate and are separated to form upper and lower cavity, and the basal sliding of upper spherical cavity 6 connects
Cavity is connected to, the top slide of lower spherical cavity 4 is connected to lower cavity, is uniformly distributed between upper spherical cavity 6 and lower spherical cavity 4 and connecting plate
There is the spin 16 of surface smear lubricating oil；The external peripheral surface of outside plate is provided with a circle and set from gear 15, the inner circumferential surface of inner panel
There are some fanning strips 14, the side wall of base 1 is provided with riser 11, and the top of riser 11 is provided with motor 10, and the output end of motor 10 is set
There is the master gear 9 engaged with from gear 15；The top of upper spherical cavity 6 is hinged with cover plate 7, and the surface of cover plate 7 is located at provided with input port
Aspiration pump 8 inside upper spherical cavity 6, cover plate 7 and the junction of upper spherical cavity 6 are provided with sealing shroud.Specific work process and its effect：
(1) before use, adding water to spherical cavity using water pump, then cover plate 7 is closed, pretrigger motor 105 minutes, observation electricity
Master gear 9 on machine 10 and the situation that engages from gear 15 on transmission ring 5, and in engagement place lube oil injection, stopping electricity
Machine 10, after in spherical cavity it is horizontal it is quiet after carry out follow-up casting again and quench work.
(2) in use, opening cover plate 7, start hydraulic cylinder 2, operate hydraulic cylinder 2 after casting is placed into supporting plate 12 so that support
Plate 12 goes downwards to water and floods casting, closes cover plate 7, now starts motor 10；Transmission ring 5 is used to carry out the water in the middle part of spherical cavity
Stirring；Transmission ring 5 divides to be fixedly connected for inner panel, outside plate, connecting plate, inner panel with outside plate by connecting plate, and inner panel and outside plate are connected
Fishplate bar is separated to form upper and lower cavity, and the basal sliding of upper spherical cavity 6 is connected to cavity, and the top slide of lower spherical cavity 4 is connected to down
Cavity, upper spherical cavity 6 and lower spherical cavity 4 can produce relative motion, the cylindrical weekly form of outside plate in the presence of spin 16 with transmission ring 5
Face is provided with a circle and is provided with some fanning strips 14 from gear 15, the inner circumferential surface of inner panel, rotation is driven from gear 15 by master gear 9
So that transmission ring 5 have sent rotation relative to upper spherical cavity 6 and lower spherical cavity 4, upper spherical cavity 6 and lower spherical cavity 4 is static and 5 turns of transmission ring
It is dynamic so that the fanning strip 14 on inner panel can stir to the water in spherical cavity, fan-shaped because transmission ring 5 is located at the middle part of spherical cavity
The radius that piece 14 rotates is position maximum in whole spherical cavity, and fanning strip 14 rotates one week can compared to other mixing positions
The temperature diffusion of spherical cavity reclaimed water when driving more water to participate in the flowing of the liquid in spherical cavity, and then accelerating quenching so that ball
Even water temperature in chamber；Transmission ring 5 is located at the middle part of spherical cavity, and the water for being transmitted the drive of ring 5 either diffuses up or downwards
The distance of diffusion is roughly equal, therefore the time case phase of temperature is transmitted from the upward spherical cavity 6 in transmission ring 5s or lower spherical cavity 4
Together, temperature can quickly be transferred to both ends so that the temperature of the water in spherical cavity can be more uniform respectively to the upper of spherical cavity
Half portion and next portion transmit, and have promoted the uniformity of the temperature degree of water in spherical cavity, and then improve the quenching quality of casting.On
The top of spherical cavity 6 is hinged with cover plate 7, and the surface of cover plate 7 is provided with the aspiration pump 8 that input port is located inside upper spherical cavity 6, aspiration pump 8
Staff can be avoided to suck toxic gas, prevent from being poisoned quickly by smoke absorption caused by quenching；Motor 10 works 20 points
After clock, operation motor 10 inverts 20 minutes, with this reciprocating operation；Start aspiration pump 8 while cover plate 7 is closed；Cover plate 7 every
Open once within 10 minutes, closed after continuing 30 seconds.
(3) after use, casting quench after, start hydraulic cylinder 2 promote supporting plate 12 it is up so that casting leave the water surface but
It is not take out, still closes cover plate 7, the air of cast(ing) surface is taken away using aspiration pump 8, forms local negative pressure, is easy to cast
The evaporation of part surface moisture；Cover plate 7 is opened afterwards, takes out casting.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description., without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, and these are implemented all without the influence present invention
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as embodiment can be used for the content for explaining claim.
Claims (5)
1. a kind of method of work of casting quenching unit, casting quenching unit includes base, the transparent spherical cavity for filling water；Institute
State spherical cavity and divide equally along middle part and be divided into removably upper spherical cavity and lower spherical cavity, the base and be provided with hydraulic cylinder, the hydraulic cylinder
Output end is provided with vertical rod, and the vertical rod is stretched into lower spherical cavity and is connected with the basal sliding of lower spherical cavity, and the vertical rod is away from hydraulic cylinder
One end be fixedly connected with supporting plate, base is provided with some support bars for being used for supporting and down fix spherical cavity, the upper spherical cavity with
Transmission ring is provided between lower spherical cavity, the transmission ring is divided into inner panel, outside plate, connecting plate, and inner panel and outside plate are fixed by connecting plate
Connection, inner panel and outside plate are connected plate and are separated to form upper and lower cavity, and the basal sliding of upper spherical cavity is connected to cavity, lower spherical cavity
Top slide be connected to lower cavity, upper spherical cavity and lower spin is evenly distributed between spherical cavity and connecting plate；Outside the outside plate
Circumferential surface is provided with a circle and is provided with some fanning strips from gear, the inner circumferential surface of the inner panel, and the side wall of the base is provided with
Riser, the top of the riser are provided with motor, and the output end of motor is provided with the master gear engaged with from gear；The upper spherical cavity
Top is hinged with cover plate, and the surface of the cover plate is provided with the aspiration pump that input port is located inside upper spherical cavity；It is characterized in that, described
Method of work is as follows:
(1) before use, adding water to spherical cavity using water pump, then cover plate is closed, pretrigger motor 5 minutes, observed on motor
Master gear and the situation that engages from gear on transmission ring, and in engagement place lube oil injection, stop motor, treat in spherical cavity
Follow-up casting quenching work is carried out after level is quiet again；
(2) in use, opening cover plate, start hydraulic cylinder, casting is placed into after supporting plate and operates hydraulic cylinder so that supporting plate is gone downwards to
Water floods casting, closes cover plate, now starts motor；After motor works 20 minutes, operation motor reversal 20 minutes, with this
Reciprocating operation；Cover plate starts aspiration pump while closing；Cover plate was opened once every 10 minutes, was closed after continuing 30 seconds；
(3) after use, after casting quenches, it is up to start Hydraulic Cylinder supporting plate so that casting leaves the water surface but do not taken
Go out, still close cover plate, the air of cast(ing) surface is taken away using aspiration pump, forms local negative pressure, is easy to cast(ing) surface water
The evaporation divided；Cover plate is opened afterwards, takes out casting.
2. the method for work of casting quenching unit according to claim 1, it is characterised in that：The upper spherical cavity and lower spherical cavity
Sealing ring is provided with the junction of transmission ring.
3. the method for work of casting quenching unit according to claim 1, it is characterised in that：The surface smear of the spin
Lubricating oil.
4. the method for work of casting quenching unit according to claim 1, it is characterised in that：The support bar is symmetrical
In vertical rod both sides.
5. the method for work of casting quenching unit according to claim 1, it is characterised in that：The cover plate and upper spherical cavity
Junction is provided with sealing shroud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711242283.0A CN107893151A (en) | 2017-11-30 | 2017-11-30 | The method of work of casting quenching unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711242283.0A CN107893151A (en) | 2017-11-30 | 2017-11-30 | The method of work of casting quenching unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107893151A true CN107893151A (en) | 2018-04-10 |
Family
ID=61806452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711242283.0A Pending CN107893151A (en) | 2017-11-30 | 2017-11-30 | The method of work of casting quenching unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107893151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265166A (en) * | 2018-05-03 | 2018-07-10 | 张金莲 | A kind of wire heat treatment process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204607663U (en) * | 2015-05-03 | 2015-09-02 | 陈德成 | A kind of coagulation device |
| CN105154643A (en) * | 2015-09-09 | 2015-12-16 | 安徽省宁国市东波紧固件有限公司 | Medium temperature homogenization quenching device |
| CN107236858A (en) * | 2017-07-01 | 2017-10-10 | 郭庭 | A kind of I. C. engine crankshaft quenching coolant treatment box and its application method |
-
2017
- 2017-11-30 CN CN201711242283.0A patent/CN107893151A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204607663U (en) * | 2015-05-03 | 2015-09-02 | 陈德成 | A kind of coagulation device |
| CN105154643A (en) * | 2015-09-09 | 2015-12-16 | 安徽省宁国市东波紧固件有限公司 | Medium temperature homogenization quenching device |
| CN107236858A (en) * | 2017-07-01 | 2017-10-10 | 郭庭 | A kind of I. C. engine crankshaft quenching coolant treatment box and its application method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265166A (en) * | 2018-05-03 | 2018-07-10 | 张金莲 | A kind of wire heat treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107893151A (en) | The method of work of casting quenching unit | |
| MX2014004502A (en) | Hardening cell. | |
| CN107779572A (en) | Casting quenching unit | |
| CN106929645B (en) | A kind of quenching tank with plane elevating mechanism | |
| CN110885924A (en) | Manganese steel casting quenching device for mining equipment | |
| CN2740622Y (en) | Quenching cooler of petroleum rod joint | |
| CN107236858B (en) | A kind of I. C. engine crankshaft quenching coolant liquid treatment box and its application method | |
| CN209577200U (en) | Lubricating arrangement for racing car components | |
| CN208748152U (en) | The full water cooling section equipment of rod iron annealing and pickling production line annealing furnace | |
| CN106868270B (en) | A kind of slab and special heavy plate quenching experimental device and method | |
| CN205974600U (en) | Quenching and cooling device | |
| CN210356659U (en) | Electroplating waste gas comprehensive treatment device | |
| CN115404318A (en) | Quenching device for steelmaking | |
| CN209696749U (en) | A kind of pharmacology is with for medicine agitating heater | |
| CN211999830U (en) | Quenching cooling system for box type workpiece | |
| CN107983218A (en) | A kind of OIL IN LUBRICATING OIL PRODUCTION processing unit (plant) | |
| CN208341384U (en) | A kind of auxiliary circulating equipment of the micro- machine drawing wire drawing oil of copper wire | |
| CN211537686U (en) | Lubricating oil heating device | |
| CN218175026U (en) | Quenching equipment for producing five teeth | |
| CN214529144U (en) | Quenching device for producing corrugated nails by electroplating twist rods | |
| CN219907766U (en) | Equipment for sucking and discharging quenching cooling steam | |
| CN114609357B (en) | Metal material trimming and cooling device of metallographic analyzer | |
| CN220485761U (en) | Quenching tank oil circulation structure | |
| CN218404322U (en) | Novel fastener is oil-cooling for thermal treatment device | |
| CN219861457U (en) | Safe quenching system for machining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180410 |