CN109576556A - A kind of precision valve dignity sand - Google Patents
A kind of precision valve dignity sand Download PDFInfo
- Publication number
- CN109576556A CN109576556A CN201910003897.6A CN201910003897A CN109576556A CN 109576556 A CN109576556 A CN 109576556A CN 201910003897 A CN201910003897 A CN 201910003897A CN 109576556 A CN109576556 A CN 109576556A
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- CN
- China
- Prior art keywords
- parts
- scrap
- graphite
- pig iron
- dignity
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/006—Making ferrous alloys compositions used for making ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of precision valve dignity sand, a kind of precision valve dignity sand manufacture raw material includes the pig iron, steel scrap, copper scrap, silicon, chromium and graphite, and the parts by weight of the precision valve dignity sand distribution manufacture raw material are pig iron 40-45 parts, 20-30 parts of steel scrap, 20-30 parts of copper scrap, 1-3 parts of silicon, 1-2 parts of chromium, 1-1.5 parts of graphite.The present invention is using the discarded pig iron, steel scrap, copper scrap as manufacture raw material, waste can be recycled well, and the graphite that certain mass number is wherein added can be very good to reach the carbon content of accurate valve inner into a reasonable value, the hardness and toughness of valve body can be increased to a certain extent, and the chromium and silicon being wherein added can refine the carbon content in the pig iron, steel scrap, copper scrap, it is evenly distributed as much as possible it, keep hardness and the toughness of valve body uniform as far as possible, certain a part will not be made to be broken.
Description
Technical field
The present invention relates to machinery manufacturing technology field, specially a kind of precision valve dignity sand.
Background technique
Liquid metals is cast in the casting cavity being adapted with part shape, after its cooled and solidified, to obtain zero
The method of part or blank is casting.Casting is obtained cast member with casting method.
It needs to carry out stringent control to valve body ingredient in valve body manufacturing process, and traditional valve body ingredient is likely to result in
Hardness is lower or forming process in form defective tightness, and the subsequent use of valve body is influenced, for this purpose, it is proposed that a kind of essence
Close valve body facing sand.
Summary of the invention
The purpose of the present invention is to provide a kind of precision valve dignity sand, to solve the problems, such as to propose in background technique.
To achieve the above object, the invention provides the following technical scheme: a kind of precision valve dignity sand, a kind of precision valve
Honorable sand manufacture raw material includes the pig iron, steel scrap, copper scrap, silicon, chromium and graphite, the parts by weight of the precision valve dignity sand manufacture raw material
Number is pig iron 40-45 parts, 20-30 parts of steel scrap, 20-30 parts of copper scrap, 1-3 parts of silicon, 1-2 parts of chromium, 1-1.5 parts of graphite.
Preferably, the pig iron, steel scrap, the content of graphite containing certain mass number in copper scrap, the pig iron, steel scrap,
The parts by weight that the content of graphite contained in copper scrap adds the graphite wherein added should be between 2-3 parts.
Preferably, the accurate valve body needs that the pig iron, steel scrap and copper scrap are carried out melting first in manufacture fusion process,
The graphite of certain mass number is then put into smelting furnace and the pig iron, steel scrap and copper scrap carry out melting, then again by certain mass
The silicon and chromium of number are put into smelting furnace and carry out melting.
The present invention can obtain waste sharp again well using the discarded pig iron, steel scrap, copper scrap as manufacture raw material
With, and the graphite that certain mass number is wherein added can be very good to reach the carbon content of accurate valve inner one rationally
Value, the chromium and silicon that can increase the hardness and toughness of valve body to a certain extent, and wherein be added can be by the pig iron, steel scrap, useless
Carbon content in copper is refined, it is evenly distributed as much as possible, and keeps the hardness of valve body and toughness uniform as far as possible, will not make a certain portion
The raw fracture of distribution.
Specific embodiment
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one:
A kind of precision valve dignity sand, a kind of precision valve dignity sand manufacture raw material includes the pig iron, steel scrap, copper scrap, silicon, chromium and stone
The parts by weight of ink, the precision valve dignity sand manufacture raw material are 40 parts of the pig iron, 20 parts of steel scrap, 20 parts of copper scrap, 1 part of silicon, chromium 1
Part, 1 part of graphite.
The pig iron, steel scrap, the content of graphite containing certain mass number in copper scrap, the pig iron, steel scrap contain in copper scrap
Some content of graphite add the parts by weight of the graphite wherein added at 2 parts.
The precision valve body needs that the pig iron, steel scrap and copper scrap are carried out melting first in manufacture fusion process, then will
The graphite of certain mass number is put into smelting furnace and the pig iron, steel scrap and copper scrap carry out melting, then again by certain mass number
Silicon and chromium are put into smelting furnace and carry out melting.
Embodiment two:
A kind of precision valve dignity sand, a kind of precision valve dignity sand manufacture raw material includes the pig iron, steel scrap, copper scrap, silicon, chromium and stone
The parts by weight of ink, the precision valve dignity sand manufacture raw material are 45 parts of the pig iron, 30 parts of steel scrap, 30 parts of copper scrap, 3 parts of silicon, chromium 2
Part, 1.5 parts of graphite.
The pig iron, steel scrap, the content of graphite containing certain mass number in copper scrap, the pig iron, steel scrap contain in copper scrap
The parts by weight that some content of graphite add the graphite wherein added are 3 parts.
The precision valve body needs that the pig iron, steel scrap and copper scrap are carried out melting first in manufacture fusion process, then will
The graphite of certain mass number is put into smelting furnace and the pig iron, steel scrap and copper scrap carry out melting, then again by certain mass number
Silicon and chromium are put into smelting furnace and carry out melting.
Embodiment three:
A kind of precision valve dignity sand, a kind of precision valve dignity sand manufacture raw material includes the pig iron, steel scrap, copper scrap, silicon, chromium and stone
The parts by weight of ink, the precision valve dignity sand manufacture raw material are 43 parts of the pig iron, 25 parts of steel scrap, 25 parts of copper scrap, 2 parts of silicon, chromium 1.5
Part, 1.3 parts of graphite.
The pig iron, steel scrap, the content of graphite containing certain mass number in copper scrap, the pig iron, steel scrap contain in copper scrap
The parts by weight that some content of graphite add the graphite wherein added are 2.5 parts.
The precision valve body needs that the pig iron, steel scrap and copper scrap are carried out melting first in manufacture fusion process, then will
The graphite of certain mass number is put into smelting furnace and the pig iron, steel scrap and copper scrap carry out melting, then again by certain mass number
Silicon and chromium are put into smelting furnace and carry out melting.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of precision valve dignity sand, it is characterised in that: a kind of precision valve dignity sand manufacture raw material include the pig iron, steel scrap,
Copper scrap, silicon, chromium and graphite, the parts by weight of precision valve dignity sand manufacture raw material are pig iron 40-45 parts, 20-30 parts of steel scrap,
20-30 parts of copper scrap, 1-3 parts of silicon, 1-2 parts of chromium, 1-1.5 parts of graphite.
2. a kind of precision valve dignity sand according to claim 1, it is characterised in that: the pig iron, steel scrap contain in copper scrap
The content of graphite of certain mass number, the pig iron, steel scrap, the content of graphite contained in copper scrap add the graphite wherein added
Parts by weight should be between 2-3 parts.
3. a kind of precision valve dignity sand according to claim 1, it is characterised in that: the precision valve body is in manufacture melting
It needs that the pig iron, steel scrap and copper scrap are carried out melting first in journey, the graphite of certain mass number is then put into smelting furnace and life
Iron, steel scrap and copper scrap carry out melting, and the silicon of certain mass number and chromium are then put into smelting furnace again and carry out melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003897.6A CN109576556A (en) | 2019-01-03 | 2019-01-03 | A kind of precision valve dignity sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003897.6A CN109576556A (en) | 2019-01-03 | 2019-01-03 | A kind of precision valve dignity sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109576556A true CN109576556A (en) | 2019-04-05 |
Family
ID=65915949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910003897.6A Pending CN109576556A (en) | 2019-01-03 | 2019-01-03 | A kind of precision valve dignity sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109576556A (en) |
-
2019
- 2019-01-03 CN CN201910003897.6A patent/CN109576556A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190405 |
|
| WD01 | Invention patent application deemed withdrawn after publication |