CN109513880A - A method of using the molding hydraulic impacter cylinder body of monoblock cast method - Google Patents
A method of using the molding hydraulic impacter cylinder body of monoblock cast method Download PDFInfo
- Publication number
- CN109513880A CN109513880A CN201811427826.0A CN201811427826A CN109513880A CN 109513880 A CN109513880 A CN 109513880A CN 201811427826 A CN201811427826 A CN 201811427826A CN 109513880 A CN109513880 A CN 109513880A
- Authority
- CN
- China
- Prior art keywords
- casting
- cylinder body
- way
- molding
- blank
- 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.)
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Classifications
-
- 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
- B22C9/22—Moulds for peculiarly-shaped castings
-
- 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
- C21D1/26—Methods of annealing
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
Abstract
A method of using the molding hydraulic impacter cylinder body of monoblock cast method, the specific method is as follows: (1) optimizing product structure: carrying out the production of blank using the technique of one-step casting forming, guarantee that interiors of products is connected using R6-R8 fillet, and cross section is used to carry out consolidation process for trapezoidal reinforcing rib；(2) casting moulding process: making flask by the way of sand casting, and carries out casting and pour；(3) H13 hot-work die steel blank is used, intermediate frequency furnace fusing is placed into, is poured, the duration of pouring 8-17 seconds, is then quickly cooled down by the way of air-cooled, and demould at 1500-1700 DEG C；(4) casting after molding needs to make annealing treatment by 820--830 DEG C, returns goods time 30-60 minutes；(5) after being machined to opening and datum level, and matrix hardness is improved using bath nitriding and oxidation technology.The present invention improves the stability and intensity of cylinder body, while can reinforce whole ability of anti-deformation using trapezoidal reinforcing rib structure.
Description
Technical field:
The present invention relates to technical fields of mechanical processing, and in particular to a kind of to use the molding hydraulic impacter of monoblock cast method
The method of cylinder body.
Background technique:
It is applied to this field of oil drilling in hydraulic jet impacter, the great potential and advantage showed is that have
What mesh was seen altogether.Such as: 1, hydraulic jet type impactor manufacturing cost low, 2, hydraulic jet impact can be under high confining pressure environment
It works normally, moreover, hydraulic jet percussion revolution drilling method capacity usage ratio is high, penetration rate is good, and drilling cost is low, behaviour
Make easy.And common roller boring then involves great expense, and when accident occur leads to burying, the burning of bits, more causes huge
Loss.But in actual operation it was found that the key position of impactor: the service life of fluidic is dropped by 100 hours
It is even lower as low as 10 hours, cause oil drilling more to propose the frequency raising for changing impactor, thus considerably increases petroleum
The cost of drilling receives the application prospect of jetting type hydraulic impacter and limits for the moment.
Important component of the former hydraulic impacter cylinder body as impactor, the material 35CrMo used, welding fabrication technique；
Surface treatment: ionic nitriding, hardness HRC28-32 after heat treatment.Failure mode: abrasion in commissure cracking and early stage cylinder.Because
Housing structure limitation, weld stress are big；Welding heat affected zone is wide, the early-age crack be easy to causeing in cylinder body use process.
Summary of the invention:
The object of the present invention is to provide a kind of methods using the molding hydraulic impacter cylinder body of monoblock cast method, and use
Following technical scheme:
A method of using the molding hydraulic impacter cylinder body of monoblock cast method, the specific method is as follows:
(1) it optimizes product structure: carrying out the production of blank using the technique of one-step casting forming, guarantee that interiors of products uses
The connection of R6-R8 fillet, and cross section is used to carry out consolidation process for trapezoidal reinforcing rib；
(2) casting moulding process: making flask by the way of sand casting, and carries out casting and pour；
(3) H13 hot-work die steel blank is used, intermediate frequency furnace fusing is placed into, is poured at 1500-1700 DEG C, the duration of pouring
It 8-17 seconds, is then quickly cooled down, and demoulded by the way of air-cooled；
(4) casting after molding needs to make annealing treatment by 820--830 DEG C, returns goods time 30-60 minutes；
(5) after being machined to opening and datum level, and matrix hardness is improved using bath nitriding and oxidation technology:
HRC46-48, surface hardness: HV800-3400, case depth: 0.08mm-0.30mm, nitride layer, white layer depth: less than 1.5um,
Inboard wall of cylinder block is accomplished uniformly to nitrogenize.
The invention has the following advantages: the present invention improves the stability and intensity of cylinder body, while being added using trapezoidal
Strengthening tendons structure can reinforce whole ability of anti-deformation.
Specific embodiment:
Present embodiment uses following technical scheme: it includes following processing step:
A method of using the molding hydraulic impacter cylinder body of monoblock cast method, the specific method is as follows:
(1) it optimizes product structure: carrying out the production of blank using the technique of one-step casting forming, guarantee that interiors of products uses
The connection of R6-R8 fillet, and cross section is used to carry out consolidation process for trapezoidal reinforcing rib；
(2) casting moulding process: making flask by the way of sand casting, and carries out casting and pour；
(3) H13 hot-work die steel blank is used, intermediate frequency furnace fusing is placed into, is poured at 1500-1700 DEG C, the duration of pouring
It 8-17 seconds, is then quickly cooled down, and demoulded by the way of air-cooled；
(4) casting after molding needs to make annealing treatment by 820--830 DEG C, returns goods time 30-60 minutes；
(5) after being machined to opening and datum level, and matrix hardness is improved using bath nitriding and oxidation technology:
HRC46-48, surface hardness: HV800-3400, case depth: 0.08mm-0.30mm, nitride layer, white layer depth: less than 1.5um,
Inboard wall of cylinder block is accomplished uniformly to nitrogenize.
The present invention improves the stability and intensity of cylinder body, while can reinforce whole anti-shape using trapezoidal reinforcing rib structure
Change ability.
Claims (1)
1. a kind of method using the molding hydraulic impacter cylinder body of monoblock cast method, which is characterized in that the specific method is as follows:
(1) it optimizes product structure: carrying out the production of blank using the technique of one-step casting forming, guarantee that interiors of products uses R6-
The connection of R8 fillet, and cross section is used to carry out consolidation process for trapezoidal reinforcing rib；
(2) casting moulding process: making flask by the way of sand casting, and carries out casting and pour；
(3) H13 hot-work die steel blank is used, intermediate frequency furnace fusing is placed into, is poured at 1500-1700 DEG C, the duration of pouring 8-
It 17 seconds, is then quickly cooled down, and demoulded by the way of air-cooled；
(4) casting after molding needs to make annealing treatment by 820--830 DEG C, returns goods time 30-60 minutes；
(5) after being machined to opening and datum level, and matrix hardness is improved using bath nitriding and oxidation technology:
HRC46-48, surface hardness: HV800-3400, case depth: 0.08mm-0.30mm, nitride layer, white layer depth: less than 1.5um,
Inboard wall of cylinder block is accomplished uniformly to nitrogenize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427826.0A CN109513880A (en) | 2018-11-27 | 2018-11-27 | A method of using the molding hydraulic impacter cylinder body of monoblock cast method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427826.0A CN109513880A (en) | 2018-11-27 | 2018-11-27 | A method of using the molding hydraulic impacter cylinder body of monoblock cast method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109513880A true CN109513880A (en) | 2019-03-26 |
Family
ID=65793447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811427826.0A Pending CN109513880A (en) | 2018-11-27 | 2018-11-27 | A method of using the molding hydraulic impacter cylinder body of monoblock cast method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109513880A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1276426A1 (en) * | 1985-07-03 | 1986-12-15 | Институт проблем литья АН УССР | Casting mould |
| CN102454359A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Integral casting cylinder block and manufacturing method |
| CN104343859A (en) * | 2014-09-30 | 2015-02-11 | 福建省建阳市杜氏铸造有限公司 | Brake hub and casting sand mold for manufacturing same |
| CN104858363A (en) * | 2014-02-21 | 2015-08-26 | 吉林天茂科技有限公司 | Method for molding hydraulic impactor cylinder by using whole casting method |
| CN108723724A (en) * | 2018-08-18 | 2018-11-02 | 全椒县全动机械有限公司 | A kind of flywheel shell of diesel engine preparation method |
-
2018
- 2018-11-27 CN CN201811427826.0A patent/CN109513880A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1276426A1 (en) * | 1985-07-03 | 1986-12-15 | Институт проблем литья АН УССР | Casting mould |
| CN102454359A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Integral casting cylinder block and manufacturing method |
| CN104858363A (en) * | 2014-02-21 | 2015-08-26 | 吉林天茂科技有限公司 | Method for molding hydraulic impactor cylinder by using whole casting method |
| CN104343859A (en) * | 2014-09-30 | 2015-02-11 | 福建省建阳市杜氏铸造有限公司 | Brake hub and casting sand mold for manufacturing same |
| CN108723724A (en) * | 2018-08-18 | 2018-11-02 | 全椒县全动机械有限公司 | A kind of flywheel shell of diesel engine preparation method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190326 |