CN106862495A - The manufacture method of small dimension entirety roller of the net weight less than 100Kg - Google Patents
The manufacture method of small dimension entirety roller of the net weight less than 100Kg Download PDFInfo
- Publication number
- CN106862495A CN106862495A CN201710034030.8A CN201710034030A CN106862495A CN 106862495 A CN106862495 A CN 106862495A CN 201710034030 A CN201710034030 A CN 201710034030A CN 106862495 A CN106862495 A CN 106862495A
- Authority
- CN
- China
- Prior art keywords
- sand mold
- small dimension
- casting
- sand
- roller
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
- C21C1/105—Nodularising additive agents
Abstract
A kind of manufacture method of the small dimension entirety roller the invention discloses net weight less than 100Kg, including moulding, melting, casting, four steps of unpacking, in step of overall modelling, sand mold is made up of the neck sand mold that emits of the sand mold of under casing, cold mould, the sand mold of mid-part, cold mould and rising head case successively from bottom up, wherein under casing pair case moulding, sand mold the partial symmetry more than sand mold of under casing is set to two groups, every group of sand mold is two small dimension entirety roller sand molds of series connection, whole sand mold is once cast four small dimensions entirety rollers.Using four " sugarcoated haws " formulas casting, casting iron water amount is easier to control the present invention close to 4 times of list branch casting in production process, and product quality stabilization, production efficiency is high.
Description
Technical field
The invention belongs to casting technology field, and in particular to a kind of manufacture of small dimension entirety roller of net weight less than 100Kg
Method.
Background technology
The net weight of current some small dimension solid rolls is less than 100Kg, and small dimension entirety roller molten iron will be carried out first after coming out of the stove
Nodularization and inoculation, then play bag and are cast.Overall roller specification is small, makes the middle power frequency furnace apparatus of foundry and makes
Type, stokehold and casting process are all not easily controlled.
1st, small dimension entirety roller water of tapping a blast furnace is few, either 3t intermediate frequency furnaces or 5t intermediate frequency furnaces, and operator is in nodularization of coming out of the stove
Shi Buneng is controlled water of tapping a blast furnace well, it is more likely that molten iron temperature is too low after abnormal nodularizing occur or coming out of the stove asks
Topic.
2nd, for the operation of stokehold, small dimension entirety roller iron water amount is few, in addition to the bad control of nodularization of coming out of the stove, skimming and
Molten iron cooling rate is faster than big specification entirety roller during breeding, so to improve tapping temperature, power consumption also accordingly increases.
3rd, small dimension entirety roller iron water amount is small, but each procedure in production process can not all be saved, and production efficiency is relatively low.
The content of the invention
The technical problem to be solved in the invention is to provide a kind of production efficiency high, liquid iron balling and the net weight that has bred is small
In the manufacture method of the small dimension entirety roller of 100Kg.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of manufacture method of small dimension entirety roller of net weight less than 100Kg, including moulding, melting, casting, four steps of unpacking
Suddenly, in step of overall modelling, sand mold is from bottom up successively by the sand mold of under casing, cold mould, the sand mold of mid-part, cold mould and rising head
The neck sand mold that emits of case is constituted, and wherein under casing pair case moulding, sand mold the partial symmetry more than sand mold of under casing is set to two groups, often
Group sand mold is two small dimension entirety roller sand molds of series connection, whole sand mold is once cast four small dimensions entirety rollers.
Further, the inner-wall spraying metal mold spray paint of the cold mould.
Further, the neck sand mold that emits is using quartz sand loam moulding.
Further, the middle connection cast tubes of under casing.
By adopting the above-described technical solution, the technological progress that the present invention is obtained is：The present invention is using four " sugar
Cucurbit " formula is cast, and casting iron water amount is easier to control close to 4 times of list branch casting in production process, and product quality stabilization is raw
Produce efficiency high.
Brief description of the drawings
Fig. 1 is casting sand type schematic diagram of the present invention.
Specific embodiment
The present invention is described in further details with reference to embodiment：
The casting of small dimension entirety roller of the present invention for net weight less than 100Kg, casting process includes moulding, melting, casts, opens
Four steps of case, as shown in figure 1, in step of overall modelling, sand mold is from bottom up successively by the sand mold 8 of under casing 7, cold mould 3, centre
The neck sand mold 2 that emits of the sand mold 5, cold mould 3 and rising head case 1 of sandbox 4 is constituted, wherein under casing 7 with double case moulding, the sand mold 8 of under casing 7 with
On sand mold partial symmetry be set to two groups, every group of sand mold is two small dimension entirety roller sand molds of series connection, makes whole sand mold
Can once be cast four small dimension entirety rollers.Two series connection of every group of sand mold in the present invention, 4 casting of whole sand mold time, no
Single casting water of tapping a blast furnace can only be solved few, nodularization and the bad problem of pregnant effect, while avoiding what is skimmed and breed
During molten iron cooling rate it is fast, and improve the problem of tapping temperature, when cast temperature is too high, product easily causes feeding not
The defect such as good.The present invention once casts 4, and casting rate is more satisfactory, and molten iron rotates up rising from bottom to top in sand mold,
Be conducive to avoiding slag inclusion phenomenon, improve the total quality of casting, while sand mold is vertical, feeding defect can be avoided.
For more preferable moulding and tight flask, connection centre circle is provided between the sand mold 8 of following cold mould 3 and under casing 7
Sand mold 6, to ensure the body of roll quality of casting finished product, the inner-wall spraying metal mold spray paint of the cold mould.
To ensure sand mold stabilization, the neck sand mold that emits is using quartz sand loam moulding.
For convenience of casting, it is ensured that casting rate and quality, the connection cast tubes in the middle of under casing, the cast tubes are by pour
Casting funnel 9 and casting tube model 11 are constituted, and are sprue cup sand mold 10 in sprue cup 9, are cast tubes in casting tube model 11
Sand mold 12.During casting, casting molten iron 13 fills sand mold, and flowed out by rising head sand mold by pouring into sprue cup in ladle.
In melting step, the main frequency furnace melting in carries out melting, smelting temperature 1450~1500 to roll molten iron
℃。
Before casting, spheroidization and inoculation treatment is carried out to roll, nodulizer is rare earth magnesium ferrosilicon alloy, addition 1.0~
1.6%, inovulant is 75 ferrosilicon, and addition is 0.1~1.0%, and reaction temperature is 1400~1500 DEG C；
Casting uses static casting, is cast with 1300~1350 DEG C of cast temperature, after casting, rising head is generated heat,
Pumping and isothermal holding.
Unpacking, it is unpacking to require cool to normal temperature.
Claims (4)
1. a kind of manufacture method of the overall roller of small dimension of net weight less than 100Kg, including moulding, melting, casting, four steps of unpacking
Suddenly, it is characterised in that：In step of overall modelling, sand mold from bottom up successively by the sand mold of under casing, cold mould, mid-part sand
The neck sand mold that emits of type, cold mould and rising head case is constituted, wherein under casing double case moulding, sand mold the partial symmetry more than sand mold of under casing
Two groups are set to, every group of sand mold is two small dimension entirety roller sand molds of series connection, whole sand mold is once cast four
Small dimension entirety roller.
2. net weight according to claim 1 is less than the manufacture method of the small dimension entirety roller of 100Kg, it is characterised in that described
The inner-wall spraying metal mold spray paint of cold mould.
3. net weight according to claim 1 and 2 is less than the manufacture method of the small dimension entirety roller of 100Kg, it is characterised in that
The neck sand mold that emits is using quartz sand loam moulding.
4. net weight according to claim 3 is less than the manufacture method of the small dimension entirety roller of 100Kg, it is characterised in that under casing
In the middle of connection cast tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034030.8A CN106862495B (en) | 2017-01-18 | 2017-01-18 | The manufacturing method of small dimension entirety roller of the net weight less than 100Kg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034030.8A CN106862495B (en) | 2017-01-18 | 2017-01-18 | The manufacturing method of small dimension entirety roller of the net weight less than 100Kg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106862495A true CN106862495A (en) | 2017-06-20 |
| CN106862495B CN106862495B (en) | 2019-06-21 |
Family
ID=59159254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710034030.8A Active CN106862495B (en) | 2017-01-18 | 2017-01-18 | The manufacturing method of small dimension entirety roller of the net weight less than 100Kg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106862495B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1455091A (en) * | 1921-01-10 | 1923-05-15 | William H Nichols | Method and apparatus for casting rolls |
| SU988443A1 (en) * | 1981-06-19 | 1983-01-15 | за вигели . | Stack-type mould |
| CN1382544A (en) * | 2002-03-04 | 2002-12-04 | 谢许元 | Controlled cooling technique for casting roller |
| CN103639365A (en) * | 2013-12-12 | 2014-03-19 | 江苏精工特种材料有限公司 | Combined type special steel casting die |
| CN104028703A (en) * | 2014-06-05 | 2014-09-10 | 遵义久志通用机械有限公司 | Two-sided casting mold of steel ball stack boxes |
| CN104028705A (en) * | 2014-06-05 | 2014-09-10 | 遵义久志通用机械有限公司 | Two-sided casting mold for steel section stack boxes |
| CN204603272U (en) * | 2015-03-06 | 2015-09-02 | 中钢集团邢台机械轧辊有限公司 | With the roll apparatus for pouring of pre-buried ground wire |
| CN105033227A (en) * | 2015-07-22 | 2015-11-11 | 中钢集团邢台机械轧辊有限公司 | Manufacturing method for high-vanadium high-speed steel composite roll |
-
2017
- 2017-01-18 CN CN201710034030.8A patent/CN106862495B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1455091A (en) * | 1921-01-10 | 1923-05-15 | William H Nichols | Method and apparatus for casting rolls |
| SU988443A1 (en) * | 1981-06-19 | 1983-01-15 | за вигели . | Stack-type mould |
| CN1382544A (en) * | 2002-03-04 | 2002-12-04 | 谢许元 | Controlled cooling technique for casting roller |
| CN103639365A (en) * | 2013-12-12 | 2014-03-19 | 江苏精工特种材料有限公司 | Combined type special steel casting die |
| CN104028703A (en) * | 2014-06-05 | 2014-09-10 | 遵义久志通用机械有限公司 | Two-sided casting mold of steel ball stack boxes |
| CN104028705A (en) * | 2014-06-05 | 2014-09-10 | 遵义久志通用机械有限公司 | Two-sided casting mold for steel section stack boxes |
| CN204603272U (en) * | 2015-03-06 | 2015-09-02 | 中钢集团邢台机械轧辊有限公司 | With the roll apparatus for pouring of pre-buried ground wire |
| CN105033227A (en) * | 2015-07-22 | 2015-11-11 | 中钢集团邢台机械轧辊有限公司 | Manufacturing method for high-vanadium high-speed steel composite roll |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106862495B (en) | 2019-06-21 |
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