CN110238353A - A kind of potassium steel screen making technique - Google Patents
A kind of potassium steel screen making technique Download PDFInfo
- Publication number
- CN110238353A CN110238353A CN201910638071.7A CN201910638071A CN110238353A CN 110238353 A CN110238353 A CN 110238353A CN 201910638071 A CN201910638071 A CN 201910638071A CN 110238353 A CN110238353 A CN 110238353A
- Authority
- CN
- China
- Prior art keywords
- potassium steel
- sand core
- casting mould
- sieve
- sand
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The present invention relates to a kind of screen making techniques, comprising: step 1 makes sand core；It chooses molding sand heating thermosetting resin and is put into core shooter inner mold chamber after mixing evenly, taken out after core shooter extrusion forming；Step 2, the sand core made, which is put into environment, is cooled to room temperature；Step 3, it is intracavitary that the sand core cooled down is put into casting mould, closes casting mould, potassium steel molten iron is poured into casting mould cavity, room temperature is cooled to.Step 4 opens casting mould chamber, takes out the zoarium of casting potassium steel sieve and sand core, after taking out sand core, to the polishing deburring of potassium steel screen surface.Potassium steel sieve after polishing is placed in press machine and presses to bending by step 5.A kind of sieve of casting can be provided, internal to concentrate without stress compared to the sieve to drill before, long service life reduces production cost, improves production efficiency.
Description
Technical field
The present invention relates to screen making technology fields, are in particular a kind of screen making technique.
Background technique
Sand sand from source can be divided into sea sand, river sand and Shan Sha.In building decoration, country is forbidden using sea sand
's.Although sea sand is clean, country forbids to use the sea sand without desalt processing as construction material.Because sea sand salinity is high,
So that architectural engineering chloride ion corrosion reinforcing bar situation is occurred, causes security risk.Whether be sea sand, be primarily to see sand if differentiating
Whether ocean tiny shell is contained in the inside.In general decorative engineering, it is all recommended to use river sand.River sand surface roughness is moderate, and
And it is more clean, it is less containing impurity, but river sand content is less, supply falls short of demand, and largely using at this stage is mountain sand, and mountain is husky
Due to rough surface, so cement adhesion effect is good, in the manufacturing process of mountain sand, need a kind of sieve, filter big grain with it is small
Grain sand, but common sieve uses the form of steel plate turn hole to be a kind of damage to steel plate, cause when drill bit punches
Steel plate internal stress is concentrated, in this way, this service life for shining net is shorter, is resulted in waste of resources, so newly devising a kind of sieve
Net manufacture craft improves the service life for shining net.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of screen making techniques, can provide a kind of sieve of casting
Net, internal to concentrate without stress compared to the sieve to drill before, long service life reduces production cost, improves production
Efficiency.
In order to solve the above technical problems, the present invention relates to screen making techniques, it is in particular a kind of screen making work
Skill field, comprising:
Step 1 makes sand core；It chooses molding sand heating thermosetting resin and is put into core shooter inner mold chamber after mixing evenly, by core shooter
It is taken out after extrusion forming；
Step 2, the sand core made, which is put into environment, is cooled to room temperature；
Step 3, it is intracavitary that the sand core cooled down is put into casting mould, closes casting mould, potassium steel molten iron is poured into casting mould
In cavity, it is cooled to room temperature.
Step 4 opens casting mould chamber, takes out the zoarium of casting potassium steel sieve and sand core, after taking out sand core, to height
The polishing deburring of manganese steel screen surface.
Potassium steel sieve after polishing is placed in press machine and presses to bending by step 5.
As advanced optimizing for the technical program, in step two described in a kind of screen making technology field of the present invention
Cooling time is 1-2 hours.
As advanced optimizing for the technical program, in step three described in a kind of screen making technology field of the present invention
Cooling time is 6-9 hours.
A kind of screen making technology field of the invention has the beneficial effect that
A kind of screen making technique of the present invention, can provide a kind of sieve of casting, compared to the sieve to drill before, inside do not have
There is stress concentration, long service life reduces production cost, improves production efficiency.
Detailed description of the invention
The present invention will be further described in detail with specific implementation method with reference to the accompanying drawing.
Fig. 1 is casting and forming mesh structure schematic diagram.
Fig. 2 is sand core structure schematic diagram.
In figure: sieve 1；Sand core 2.
Specific embodiment
Specific embodiment:
Illustrate present embodiment below with reference to Fig. 1-2, the present invention relates to screen making techniques, are in particular a kind of sieve systems
Make technique, comprising:
Step 1 makes sand core；It chooses precoated sand and is put into core shooter hot box (punching block) inner mold chamber, add by hot box (punching block)
It is taken out after temperature molding；
Step 2 takes out sand core natural cooling.
Step 3, it is intracavitary that the sand core cooled down is put into casting mould type, and upper and lower model locking waits molten steel to pour into.
Step 4, melting, first melting carbon steel, and each dvimanganese iron and other precious alloy materials, it is few every time several times
It measures into furnace, noble element is being eventually adding, to reduce scaling loss.It is advisable with 50-80mm.After melting down, furnace temperature reaches 1580-1600
DEG C when, deoxidation, dehydrogenation, denitrogenation, aluminium wire can be used, it is also possible to the materials such as Si-Ca alloy or SiC.Deoxidier is centainly pressed onto furnace
Interior depths.Metal bath surface is covered tightly with coverture at this time, separates outside air.Calm a period of time is also wanted, oxide, field trash are made
There is grace time floating.Before molten steel is come out of the stove, casting ladle is baked to 400 DEG C or more.With V-Fe, Ti-Fe, rare earth etc. during coming out of the stove
Various trace elements do Metamorphism treatment, are to refine primary crystallization, and reaching standard can cast (the melting technique and common molten
Refining technology is identical).
Step 5 is heat-treated after sand removal grinding process, product is packed into high temperature trolley electric stove, operation is 350
DEG C hereinafter, heating rate < 80 DEG C/h, 750 DEG C hereinafter, < 100 DEG C/h, and have the heat preservation of different times.At extremely > 750 DEG C, casting
Interior is in mecystasis, can be rapidly heated.Determine soaking time (usually according to the thickness of casting when to 1050 DEG C
1h25min)；Then being quickly raised to 1100 DEG C or so heat preservation half an hour again comes out of the stove.Casting must enter water after coming out of the stove as early as possible, come out of the stove to
Enter the time of water no more than 45 seconds, enters coolant-temperature gage and answer < 30 DEG C, after quenching, water temperature < 50 DEG C, water should be not less than casting weight
8 times.Cold water enters from pond lower part, and warm water is flowed out from pond top surface.Casting wants three directions ceaselessly to move ability in pond
Obtain qualified products.
After heat treatment, every piece of sieve is put into hydraulic press for step 6, carries out arc examination by sand making machine specification
Pressure, reaching standard rear can be used.Cooling time in step 2 is 1-2 hours.Cooling time in the step three is
6-9 hours.
The method of casting reduces production cost than the method directly punched.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that those of ordinary skill is made within the essential scope of the present invention also belong to guarantor of the invention
Protect range.
Claims (3)
1. a kind of potassium steel screen making technique, comprises the following steps that:
Step 1 makes sand core；It chooses molding sand heating thermosetting resin and is put into core shooter inner mold chamber after mixing evenly, by core shooter
It is taken out after extrusion forming；
Step 2, the sand core made, which is put into environment, is cooled to room temperature；
Step 3, it is intracavitary that the sand core cooled down is put into casting mould, closes casting mould, potassium steel molten iron is poured into casting mould
In cavity, it is cooled to room temperature.
Step 4 opens casting mould chamber, takes out the zoarium of casting potassium steel sieve and sand core, after taking out sand core, to potassium steel
Screen surface polishing deburring.
Potassium steel sieve after polishing is placed in press machine and presses to bending by step 5.
2. a kind of potassium steel sieve technique according to claim 1, it is characterised in that: when cooling in the step two
Between be 1-2 hours.
3. a kind of potassium steel sieve technique according to claim 1, it is characterised in that: when cooling in the step three
Between be 6-9 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638071.7A CN110238353A (en) | 2019-07-16 | 2019-07-16 | A kind of potassium steel screen making technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638071.7A CN110238353A (en) | 2019-07-16 | 2019-07-16 | A kind of potassium steel screen making technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110238353A true CN110238353A (en) | 2019-09-17 |
Family
ID=67892391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910638071.7A Pending CN110238353A (en) | 2019-07-16 | 2019-07-16 | A kind of potassium steel screen making technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110238353A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888241A (en) * | 2022-04-26 | 2022-08-12 | 一汽丰田发动机(天津)有限公司 | Neutron cooling device based on inorganic neutron process and method for improving filling defect |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8629254D0 (en) * | 1986-01-14 | 1987-02-11 | Svenska Hallam Ltd | Casting of metals |
| CN1188696A (en) * | 1997-01-23 | 1998-07-29 | 鞍山钢铁集团公司 | Casting technology of thermal vibration sieve plate and the combined core used thereof |
| CN1214372A (en) * | 1997-10-11 | 1999-04-21 | 余杭市瓶窑合金钢铸造厂 | Sieve plate for sorting stone material and its making method |
| CN102784752A (en) * | 2012-08-23 | 2012-11-21 | 何一标 | Process for producing sieve plate of hammer crusher |
-
2019
- 2019-07-16 CN CN201910638071.7A patent/CN110238353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8629254D0 (en) * | 1986-01-14 | 1987-02-11 | Svenska Hallam Ltd | Casting of metals |
| CN1188696A (en) * | 1997-01-23 | 1998-07-29 | 鞍山钢铁集团公司 | Casting technology of thermal vibration sieve plate and the combined core used thereof |
| CN1214372A (en) * | 1997-10-11 | 1999-04-21 | 余杭市瓶窑合金钢铸造厂 | Sieve plate for sorting stone material and its making method |
| CN102784752A (en) * | 2012-08-23 | 2012-11-21 | 何一标 | Process for producing sieve plate of hammer crusher |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888241A (en) * | 2022-04-26 | 2022-08-12 | 一汽丰田发动机(天津)有限公司 | Neutron cooling device based on inorganic neutron process and method for improving filling defect |
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| 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 |
Application publication date: 20190917 |
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| RJ01 | Rejection of invention patent application after publication |