CN105642861A - Die-casting technology of stainless steel valve body - Google Patents
Die-casting technology of stainless steel valve body Download PDFInfo
- Publication number
- CN105642861A CN105642861A CN201610024637.3A CN201610024637A CN105642861A CN 105642861 A CN105642861 A CN 105642861A CN 201610024637 A CN201610024637 A CN 201610024637A CN 105642861 A CN105642861 A CN 105642861A
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- CN
- China
- Prior art keywords
- stainless steel
- die
- alloy
- parts
- die 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2209—Selection of die materials
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a die-casting technology of a stainless steel valve body. The die-casting technology comprises the following steps that firstly, a die is heated, wherein the die is heated to range from 300 DEG C to 500 DEG C, and comprises a die body, cavities and cores used for carrying out die casting on the stainless steel valve body are arranged in the die body, an injection channel for connecting the cavities is further arranged on the die body, the inner walls of the cavities are covered with alloy layers, and an alloy material of each alloy layer comprises, by mass, 10-28 parts of chromium, 10-22 parts of nickel, 0.5-11 parts of manganese, 0.01-0.07 part of molybdenum, 50-80 parts of iron and the balance impurities unavoidable in the machining process; secondly, a release agent is sprayed into the cavities; thirdly, molten stainless steel is injected through the injection channel; and fourthly, the molten stainless steel is cured and formed, and a product is taken out. According to the technical scheme, the technical effect that the die-casting technology can be used for die casting of the stainless steel valve body is achieved.
Description
Technical field
The present invention relates to the extrusion process of a kind of stainless steel body.
Background technology
Existing extrusion process, extrusion process in particular for valve body, its mould generally adopts H13 steel, owing to it is high temperature resistant, wear-resisting, pressure, anti-fatigue performance is inadequate, thus its can only the valve body of the fusing point relatively low (being generally below 700 DEG C) such as die casting such as aluminium alloy, and die casting can not have the rustless steel of higher melt.
Summary of the invention
For the deficiency that prior art exists, it is an object of the invention to provide the extrusion process of a kind of stainless steel body.
For achieving the above object, the technical scheme is that the extrusion process of a kind of stainless steel body, it is characterized in that: comprise the following steps: step one, heating mould: mould is heated to 300 DEG C to 500 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 10-28 part, the nickel of 10-22 part, the manganese of 0.5-11 part, the molybdenum of 0.01-0.07 part, the ferrum of 50-80 part, surplus is unescapable impurity in the course of processing, step 2, in die cavity, spray releasing agent, step 3, by described injection channel inject stainless steel water, step 4, stainless steel water curing molding, take out product.
The present invention is further arranged to: the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction:
The chromium of 16-24 part,
The nickel of 13-17 part,
The manganese of 2-6 part,
The molybdenum of 0.02-0.05 part,
The ferrum of 60-70 part,
Surplus is unescapable impurity in the course of processing.
The present invention is further arranged to: the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction:
The chromium of 18 parts,
The nickel of 16 parts,
The manganese of 5 parts,
The molybdenum of 0.04 part,
The ferrum of 60 parts,
Surplus is unescapable impurity in the course of processing.
The extrusion process of the stainless steel body of technical solution of the present invention, the technique effect that its mould has high temperature resistant (2100 DEG C), wear-resisting, pressure, anti-fatigue performance is greatly improved, it is possible to there is the stainless steel body of higher melt for die casting.
The present invention is further arranged to: described die body includes framed and is arranged on framed interior core rod, and described alloy-layer is arranged on described core rod.
The present invention is further arranged to: described alloy material is arranged on described core rod by built-up welding or welding or surfacing, carves milling again through machining center and forms described die cavity on alloy material.
The present invention is further arranged to: described framed by oil steel constitute.
The present invention is further arranged to: described core rod is made up of hot die steel.
By adopting technique scheme, save production cost.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the mould structure explosive view one of the embodiment of the present invention;
Fig. 2 is the mould structure explosive view two of the embodiment of the present invention.
Detailed description of the invention
Referring to accompanying drawing 1, accompanying drawing 2, the extrusion process of stainless steel body disclosed by the invention, comprise the following steps: step one, heating mould: mould is heated to 300 DEG C to 500 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 10-28 part, the nickel of 10-22 part, the manganese of 0.5-11 part, the molybdenum of 0.01-0.07 part, the ferrum of 50-80 part, surplus is unescapable impurity in the course of processing, step 2, in die cavity, spray releasing agent, step 3, by described injection channel inject stainless steel water, step 4, stainless steel water curing molding, take out product. preferably, framed include framed 11 with low mold frame 12, core rod also includes upper mold core 21 and lower mold core 22, upper mold core 21 and lower mold core 22 are respectively placed in framed 11 and low mold frame 12, upper mold core 21 and lower mold core 22 are respectively arranged with upper impression 31 and lower impressions 32, upper impression 31 and lower impressions 32 constitute the die cavity of described die body, core includes levorotation core 41 and right core 42, levorotation core 41 is respectively arranged with the left seat 51 that is connected and is connected seat 52 with right with right core 42, it should be noted that herein, on above-mentioned, under, left, the right side is intended merely to and describes in conjunction with accompanying drawing is convenient, under practical situation, can other different azimuth arrange.
Embodiment 1,
Comprise the following steps: step one, heating mould: mould is heated to 300 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 18 parts, the nickel of 16 parts, the manganese of 5 parts, the molybdenum of 0.04 part, the ferrum of 60 parts, surplus is unescapable impurity in the course of processing; Step 2, in die cavity, spray releasing agent; Step 3, by described injection channel inject stainless steel water; Step 4, stainless steel water curing molding, take out product.
Embodiment 2,
Comprise the following steps: step one, heating mould: mould is heated to 350 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 16 parts, the nickel of 13 parts, the manganese of 2 parts, the molybdenum of 0.05 part, the ferrum of 60 parts, surplus is unescapable impurity in the course of processing;Step 2, in die cavity, spray releasing agent; Step 3, by described injection channel inject stainless steel water; Step 4, stainless steel water curing molding, take out product.
Embodiment 3,
Comprise the following steps: step one, heating mould: mould is heated to 350 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 24 parts, the nickel of 17 parts, the manganese of 6 parts, the molybdenum of 0.02 part, the ferrum of 60 parts, surplus is unescapable impurity in the course of processing; Step 2, in die cavity, spray releasing agent; Step 3, by described injection channel inject stainless steel water; Step 4, stainless steel water curing molding, take out product.
Embodiment 4,
Comprise the following steps: step one, heating mould: mould is heated to 400 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 24 parts, the nickel of 17 parts, the manganese of 2 parts, the molybdenum of 0.05 part, the ferrum of 70 parts, surplus is unescapable impurity in the course of processing; Step 2, in die cavity, spray releasing agent; Step 3, by described injection channel inject stainless steel water; Step 4, stainless steel water curing molding, take out product.
Embodiment 5,
Comprise the following steps: step one, heating mould: mould is heated to 400 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 10 parts, the nickel of 10 parts, the manganese of 11 parts, the molybdenum of 0.07 part, the ferrum of 80 parts, surplus is unescapable impurity in the course of processing; Step 2, in die cavity, spray releasing agent; Step 3, by described injection channel inject stainless steel water; Step 4, stainless steel water curing molding, take out product.
Embodiment 6,
Comprise the following steps: step one, heating mould: mould is heated to 450 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 28 parts, the nickel of 22 parts, the manganese of 0.5 part, the molybdenum of 0.01 part, the ferrum of 50 parts, surplus is unescapable impurity in the course of processing; Step 2, in die cavity, spray releasing agent; Step 3, by described injection channel inject stainless steel water; Step 4, stainless steel water curing molding, take out product.
Embodiment 7,
Comprise the following steps: step one, heating mould: mould is heated to 500 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 28 parts, the nickel of 10 parts, the manganese of 0.5 part, the molybdenum of 0.01 part, the ferrum of 80 parts, surplus is unescapable impurity in the course of processing;Step 2, in die cavity, spray releasing agent; Step 3, by described injection channel inject stainless steel water; Step 4, stainless steel water curing molding, take out product.
Performance detects:
Following table is mould alloy hardness HV under 2100 DEG C of high temperature of detection embodiment 1 to 70.5(Kgf/mm2), yield strength ��b(MPa) performance parameter, and product effect.
Claims (7)
1. the extrusion process of a stainless steel body, it is characterized in that: comprise the following steps: step one, heating mould: mould is heated to 300 DEG C to 500 DEG C, described mould includes die body, the die cavity for die casting stainless steel body and core it is provided with in described die body, and described die body is additionally provided with the injection channel turning on described die cavity, the inwall of described die cavity is coated with alloy-layer, the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction: the chromium of 10-28 part, the nickel of 10-22 part, the manganese of 0.5-11 part, the molybdenum of 0.01-0.07 part, the ferrum of 50-80 part, surplus is unescapable impurity in the course of processing, step 2, in die cavity, spray releasing agent, step 3, by described injection channel inject stainless steel water, step 4, stainless steel water curing molding, take out product.
2. the alloy of valve body die-casting mould according to claim 1, it is characterised in that: the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction:
The chromium of 16-24 part,
The nickel of 13-17 part,
The manganese of 2-6 part,
The molybdenum of 0.02-0.05 part,
The ferrum of 60-70 part,
Surplus is unescapable impurity in the course of processing.
3. the extrusion process of stainless steel body according to claim 2, it is characterised in that: the alloy material of described alloy-layer is made up of the element chemistry constituted as follows by mass fraction:
The chromium of 18 parts,
The nickel of 16 parts,
The manganese of 5 parts,
The molybdenum of 0.04 part,
The ferrum of 60 parts,
Surplus is unescapable impurity in the course of processing.
4. the extrusion process of the stainless steel body according to claim 1 or 2 or 3, it is characterised in that: described die body includes framed and is arranged on framed interior core rod, and described alloy-layer is arranged on described core rod.
5. the extrusion process of stainless steel body according to claim 4, it is characterised in that: described alloy material is arranged on described core rod by built-up welding or welding or surfacing, carves milling again through machining center and forms described die cavity on alloy material.
6. the extrusion process of stainless steel body according to claim 5, it is characterised in that: described framed by oil steel constitute.
7. the extrusion process of stainless steel body according to claim 6, it is characterised in that: described core rod is made up of hot die steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024637.3A CN105642861A (en) | 2016-01-14 | 2016-01-14 | Die-casting technology of stainless steel valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024637.3A CN105642861A (en) | 2016-01-14 | 2016-01-14 | Die-casting technology of stainless steel valve body |
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| Publication Number | Publication Date |
|---|---|
| CN105642861A true CN105642861A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610024637.3A Pending CN105642861A (en) | 2016-01-14 | 2016-01-14 | Die-casting technology of stainless steel valve body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377931A (en) * | 2017-08-23 | 2017-11-24 | 吴江市液铸液压件铸造有限公司 | A kind of electric machine casing die casting |
| CN109385568A (en) * | 2018-11-07 | 2019-02-26 | 浙江正鹏阀门有限公司 | A kind of preparation process of corrosion-resistant valve body |
| CN114559007A (en) * | 2021-12-23 | 2022-05-31 | 邓少聪 | Novel ultra-high temperature die casting process for stainless steel |
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| GB675809A (en) * | 1949-04-22 | 1952-07-16 | Electric Furnace Prod Co | Improvements in iron base alloys for high-temperature service |
| US3764303A (en) * | 1969-07-11 | 1973-10-09 | G Schmidt | Fe cr ni co mn mo welding material and blank wire and bare band electrode forms thereof |
| CN2107332U (en) * | 1991-11-20 | 1992-06-17 | 楚杏芬 | Precision steel casting mold |
| CN1340397A (en) * | 2000-08-30 | 2002-03-20 | 陈素荣 | Welding electrode for build-up welding and its usage |
| JP3895251B2 (en) * | 2002-10-01 | 2007-03-22 | 日本鋳鉄管株式会社 | Hot casting member for centrifugal casting provided with a heat insulating layer and method for forming the heat insulating layer |
| CN201164900Y (en) * | 2008-02-29 | 2008-12-17 | 肇庆市广盛铸业有限公司 | Composite metal mould |
| CN202322973U (en) * | 2011-11-28 | 2012-07-11 | 机械科学研究总院先进制造技术研究中心 | Superhigh-temperature forming die |
| JP5642295B2 (en) * | 2011-11-28 | 2014-12-17 | 福田金属箔粉工業株式会社 | Ni-Fe-Cr-based alloy and engine valve plated with it |
| CN104439152A (en) * | 2014-11-17 | 2015-03-25 | 哈尔滨工业大学 | High-temperature alloy material for die-casting die and method and application of high-temperature alloy material |
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2016
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB675809A (en) * | 1949-04-22 | 1952-07-16 | Electric Furnace Prod Co | Improvements in iron base alloys for high-temperature service |
| US3764303A (en) * | 1969-07-11 | 1973-10-09 | G Schmidt | Fe cr ni co mn mo welding material and blank wire and bare band electrode forms thereof |
| CN2107332U (en) * | 1991-11-20 | 1992-06-17 | 楚杏芬 | Precision steel casting mold |
| CN1340397A (en) * | 2000-08-30 | 2002-03-20 | 陈素荣 | Welding electrode for build-up welding and its usage |
| JP3895251B2 (en) * | 2002-10-01 | 2007-03-22 | 日本鋳鉄管株式会社 | Hot casting member for centrifugal casting provided with a heat insulating layer and method for forming the heat insulating layer |
| CN201164900Y (en) * | 2008-02-29 | 2008-12-17 | 肇庆市广盛铸业有限公司 | Composite metal mould |
| CN202322973U (en) * | 2011-11-28 | 2012-07-11 | 机械科学研究总院先进制造技术研究中心 | Superhigh-temperature forming die |
| JP5642295B2 (en) * | 2011-11-28 | 2014-12-17 | 福田金属箔粉工業株式会社 | Ni-Fe-Cr-based alloy and engine valve plated with it |
| CN104439152A (en) * | 2014-11-17 | 2015-03-25 | 哈尔滨工业大学 | High-temperature alloy material for die-casting die and method and application of high-temperature alloy material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377931A (en) * | 2017-08-23 | 2017-11-24 | 吴江市液铸液压件铸造有限公司 | A kind of electric machine casing die casting |
| CN109385568A (en) * | 2018-11-07 | 2019-02-26 | 浙江正鹏阀门有限公司 | A kind of preparation process of corrosion-resistant valve body |
| CN114559007A (en) * | 2021-12-23 | 2022-05-31 | 邓少聪 | Novel ultra-high temperature die casting process for stainless steel |
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Application publication date: 20160608 |
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