CN106077510A - A kind of front axle housing body Technology for Heating Processing - Google Patents
A kind of front axle housing body Technology for Heating Processing Download PDFInfo
- Publication number
- CN106077510A CN106077510A CN201610593196.9A CN201610593196A CN106077510A CN 106077510 A CN106077510 A CN 106077510A CN 201610593196 A CN201610593196 A CN 201610593196A CN 106077510 A CN106077510 A CN 106077510A
- Authority
- CN
- China
- Prior art keywords
- dewaxing
- front axle
- hardening
- axle housing
- minute
- 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
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
-
- 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
- B22C9/04—Use of lost 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
- B22C9/04—Use of lost patterns
- B22C9/043—Removing the consumable pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of front axle housing body Technology for Heating Processing, 1) dispensing;2) coating;3) hardening;4) dewaxing;5) roasting.Front axle housing body Technology for Heating Processing of the present invention, gained front axle housing rigidity and fatigue resistance performance are effectively improved, and enhance the service life of front axle housing.
Description
Technical field
The present invention relates to a kind of front axle housing body Technology for Heating Processing.
Background technology
The design of casting technique plays a part crux to the quality of casting quality.The front axle housing of wheel excavator is to dig
The security part that pick machine is important.It subjects heavier load and the Moment being continually changing in excavator travels, easily
Curved allusion quotation fatigue fracture phenomenon occur, therefore, front axle housing should have preferable rigidity and fatigue resistance performance.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defect, it is provided that a kind of front axle housing body Technology for Heating Processing.
The purpose of the present invention implements by the following technical programs:
A kind of front axle housing body Technology for Heating Processing, including dispensing, coating, hardens, dewaxes and roasting,
Described dewaxing includes herein below:
After formwork hardening painting hangs, dewaxing after placing 5-10 hour, the floating sand of cup to be blown off before dewaxing, from watering when blowing
The center of cup is to postpartum mastitis, it is to avoid floating sand falls into cup;When using hot water dewaxing, water temperature is 90-98 DEG C, and dewaxing water should be avoided
Having boiling phenomenon, dewaxing time is 20-30 minute, adds the technical hydrochloric acid of 2% or the ammonium chloride of 3%-8% in the water that dewaxes during dewaxing,
So that shell mould obtains supplementing hardening when dewaxing.
Further:
Described coating includes herein below:
During coating, module repeatedly to move up and down and to rotate, and prevents from collecting between the sand grains of the trough groove on module, aperture or upper strata sand
Trapped air steeps, and removes if any bubble application airduct or hairbrush, and coating local should be avoided to heap simultaneously.
Further:
Described hardening includes herein below:
When hardening with ammonium chloride, before work, the ammonium water in reply hardening pond is stirred, to improve the concentration of ammonium chloride, ammonium chloride
Concentration should be maintained at 21wt%-25wt%;
0.05-0.1% penetrating agent is added, to improve the setting rate of shell mould in hardening pond;
Firm time surface layer is 5-8 minute, and back-up coat is 10-15 minute when there being penetrating agent, does not has during penetrating agent to be that 20-30 divides
Clock;Air-dry time after hardening was advisable with 30-45 minute, should grasp flexibly according to weather simultaneously, winter, capping in rainy season, the summer
Season, dry weather remove the limit.
Further:
Described dispensing includes herein below:
First weigh waterglass, refractory powder and activating agent by the weight ratio of 9:4:3, then refractory powder mixed with activating agent,
Again waterglass is poured in the mixture of the two and be stirred simultaneously, mixing time 60-90 minute, then stand 20-30 minute
Can use.
Further:
Described roasting includes herein below:
Shell mould after dewaxing is dried 4-8 hour, shove charge can carry out high-temperature roasting.
Beneficial effects of the present invention:
Front axle housing body Technology for Heating Processing of the present invention, gained front axle housing rigidity and fatigue resistance performance be effectively improved,
Enhance the service life of front axle housing.
Detailed description of the invention
Hereinafter the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
A kind of front axle housing body Technology for Heating Processing, including dispensing, coating, hardens, dewaxes and roasting,
Described dewaxing includes herein below:
After formwork hardening painting hangs, dewaxing after placing 5-10 hour, the floating sand of cup to be blown off before dewaxing, from watering when blowing
The center of cup is to postpartum mastitis, it is to avoid floating sand falls into cup;When using hot water dewaxing, water temperature is 90-98 DEG C, and dewaxing water should be avoided
Having boiling phenomenon, dewaxing time is 20-30 minute, adds the technical hydrochloric acid of 2% or the ammonium chloride of 3%-8% in the water that dewaxes during dewaxing,
So that shell mould obtains supplementing hardening when dewaxing.
Described coating includes herein below:
During coating, module repeatedly to move up and down and to rotate, and prevents from collecting between the sand grains of the trough groove on module, aperture or upper strata sand
Trapped air steeps, and removes if any bubble application airduct or hairbrush, and coating local should be avoided to heap simultaneously.
Described hardening includes herein below:
When hardening with ammonium chloride, before work, the ammonium water in reply hardening pond is stirred, to improve the concentration of ammonium chloride, ammonium chloride
Concentration should be maintained at 21wt%-25wt%;
0.05-0.1% penetrating agent is added, to improve the setting rate of shell mould in hardening pond;
Firm time surface layer is 5-8 minute, and back-up coat is 10-15 minute when there being penetrating agent, does not has during penetrating agent to be that 20-30 divides
Clock;Air-dry time after hardening was advisable with 30-45 minute, should grasp flexibly according to weather simultaneously, winter, capping in rainy season, the summer
Season, dry weather remove the limit.
Described dispensing includes herein below:
First weigh waterglass, refractory powder and activating agent by the weight ratio of 9:4:3, then refractory powder mixed with activating agent,
Again waterglass is poured in the mixture of the two and be stirred simultaneously, mixing time 60-90 minute, then stand 20-30 minute
Can use.
Described roasting includes herein below:
Shell mould after dewaxing is dried 4-8 hour, shove charge can carry out high-temperature roasting.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to aforementioned reality
Executing example to be described in detail the present invention, for a person skilled in the art, it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. a front axle housing body Technology for Heating Processing, it is characterised in that: include dispensing, coating, harden, dewax and roasting,
Described dewaxing includes herein below:
After formwork hardening painting hangs, dewaxing after placing 5-10 hour, the floating sand of cup to be blown off before dewaxing, from watering when blowing
The center of cup is to postpartum mastitis, it is to avoid floating sand falls into cup;When using hot water dewaxing, water temperature is 90-98 DEG C, and dewaxing water should be avoided
Having boiling phenomenon, dewaxing time is 20-30 minute, adds the technical hydrochloric acid of 2% or the ammonium chloride of 3%-8% in the water that dewaxes during dewaxing,
So that shell mould obtains supplementing hardening when dewaxing.
2. a kind of front axle housing body Technology for Heating Processing as claimed in claim 1, it is characterised in that:
Described coating includes herein below:
During coating, module repeatedly to move up and down and to rotate, and prevents from collecting between the sand grains of the trough groove on module, aperture or upper strata sand
Trapped air steeps, and removes if any bubble application airduct or hairbrush, and coating local should be avoided to heap simultaneously.
3. a kind of front axle housing body Technology for Heating Processing as claimed in claim 1, it is characterised in that:
Described hardening includes herein below:
When hardening with ammonium chloride, before work, the ammonium water in reply hardening pond is stirred, to improve the concentration of ammonium chloride, ammonium chloride
Concentration should be maintained at 21wt%-25wt%;
0.05-0.1% penetrating agent is added, to improve the setting rate of shell mould in hardening pond;
Firm time surface layer is 5-8 minute, and back-up coat is 10-15 minute when there being penetrating agent, does not has during penetrating agent to be that 20-30 divides
Clock;Air-dry time after hardening was advisable with 30-45 minute, should grasp flexibly according to weather simultaneously, winter, capping in rainy season, the summer
Season, dry weather remove the limit.
4. a kind of front axle housing body Technology for Heating Processing as claimed in claim 1, it is characterised in that:
Described dispensing includes herein below:
First weigh waterglass, refractory powder and activating agent by the weight ratio of 9:4:3, then refractory powder mixed with activating agent,
Again waterglass is poured in the mixture of the two and be stirred simultaneously, mixing time 60-90 minute, then stand 20-30 minute
Can use.
5. a kind of front axle housing body Technology for Heating Processing as claimed in claim 1, it is characterised in that:
Described roasting includes herein below:
Shell mould after dewaxing is dried 4-8 hour, shove charge can carry out high-temperature roasting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610593196.9A CN106077510A (en) | 2016-07-26 | 2016-07-26 | A kind of front axle housing body Technology for Heating Processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610593196.9A CN106077510A (en) | 2016-07-26 | 2016-07-26 | A kind of front axle housing body Technology for Heating Processing |
Publications (1)
Publication Number | Publication Date |
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CN106077510A true CN106077510A (en) | 2016-11-09 |
Family
ID=57450239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201610593196.9A Pending CN106077510A (en) | 2016-07-26 | 2016-07-26 | A kind of front axle housing body Technology for Heating Processing |
Country Status (1)
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CN (1) | CN106077510A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0462292A (en) * | 1990-06-29 | 1992-02-27 | Shimizu Corp | Diameter widening method and reducing method of tunnel |
JPH04197570A (en) * | 1990-11-27 | 1992-07-17 | Mazda Motor Corp | Production of casting having heat resisting layer |
JP4062292B2 (en) * | 2003-11-19 | 2008-03-19 | マツダ株式会社 | Light alloy casting manufacturing method |
CN103586336A (en) * | 2013-11-21 | 2014-02-19 | 湖南中联重科车桥有限公司 | Manufacturing method for banjo axle housing and axle housing |
CN103667612A (en) * | 2013-12-05 | 2014-03-26 | 湖南中联重科车桥有限公司 | Axle housing heat treatment method and axle housing making method |
CN104959544A (en) * | 2015-06-17 | 2015-10-07 | 柳州金特新型耐磨材料股份有限公司 | Rear axle shell thermal processing technology |
CN104975137A (en) * | 2015-06-17 | 2015-10-14 | 柳州金特新型耐磨材料股份有限公司 | Heat treatment technology of rear axle housing |
-
2016
- 2016-07-26 CN CN201610593196.9A patent/CN106077510A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0462292A (en) * | 1990-06-29 | 1992-02-27 | Shimizu Corp | Diameter widening method and reducing method of tunnel |
JPH04197570A (en) * | 1990-11-27 | 1992-07-17 | Mazda Motor Corp | Production of casting having heat resisting layer |
JP4062292B2 (en) * | 2003-11-19 | 2008-03-19 | マツダ株式会社 | Light alloy casting manufacturing method |
CN103586336A (en) * | 2013-11-21 | 2014-02-19 | 湖南中联重科车桥有限公司 | Manufacturing method for banjo axle housing and axle housing |
CN103667612A (en) * | 2013-12-05 | 2014-03-26 | 湖南中联重科车桥有限公司 | Axle housing heat treatment method and axle housing making method |
CN104959544A (en) * | 2015-06-17 | 2015-10-07 | 柳州金特新型耐磨材料股份有限公司 | Rear axle shell thermal processing technology |
CN104975137A (en) * | 2015-06-17 | 2015-10-14 | 柳州金特新型耐磨材料股份有限公司 | Heat treatment technology of rear axle housing |
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PB01 | Publication | ||
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Application publication date: 20161109 |
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RJ01 | Rejection of invention patent application after publication |