CN110328370A - A kind of powder pressing forming technique of sliding block - Google Patents
A kind of powder pressing forming technique of sliding block Download PDFInfo
- Publication number
- CN110328370A CN110328370A CN201910456205.3A CN201910456205A CN110328370A CN 110328370 A CN110328370 A CN 110328370A CN 201910456205 A CN201910456205 A CN 201910456205A CN 110328370 A CN110328370 A CN 110328370A
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- China
- Prior art keywords
- powder
- finished product
- semi
- sliding block
- polyethylene glycol
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/06—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of threaded articles, e.g. nuts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of powder pressing forming techniques of sliding block, the specific process is as follows: the first step, ingredient: filling the water in proportion and be heated into lysate for polyethylene glycol (PEG), after by stainless steel powder or iron powder injection be mixed；Mist projection granulating: second step resulting mixed liquor is obtained being granulated powder by controlling atomizing granulating technology parameter；Compacting: third step will be granulated powder and be packed into mold, carry out press and suppress to form semi-finished product；Vacuum-sintering: 4th step uses sintering furnace, semi-finished product is sintered；Tapping: threaded hole on semi-finished product is carried out tapping by the 5th step；6th step, quenching and subzero treatment: using vacuum drying oven, and by the 5th step, treated that semi-finished product are quenched, after carry out subzero treatment, so that the hardness stabilization of semi-finished product is reached HRC58-62；The present invention manufactures sliding block using the set compression moulding technique, keeps technique simpler, environmentally friendly, cost is lower, while obtained sliding block hardness is higher, more wear resistant, and effect is more preferable.
Description
Technical field
The present invention relates to a kind of powder pressing forming techniques of sliding block, belong to sliding block technology field.
Background technique
For the structure of linear guide there are two basic module, one is fixation kit (guide rail) as guiding, the other is
Moving assembly (sliding block) is hardened steel as the guide rail of guiding, is placed on mounting plane through fine grinding, the geometric form of cross section
Shape is more complicated, because needing to process groove on guide rail, so that the mobile sliding block of slide assemblies is wrapped in the top of guide rail
And two sides linear guide is using rolling steel balls as the power transmission interface between guide rail and sliding block, because rolling steel balls are adapted to
High-speed motion coefficient of friction sluggishness is high, meets the job requirement of moving component, can carry out the movement of infinite scroll circulation, and
Sliding block is limited on guide rail, when enabling load platform at a high speed to move in a straight line load platform in high precision along guide rail to move,
Steel ball just circulates in slider bracket groove, and the abrasion loss of slider bracket is shared on each steel ball, to extend straight
The service life of line guide rail in order to eliminate the gap between slider bracket and guide rail, can preload can improve the steady of guide track system
Qualitative linear guide rail structure composition.Wherein, the working principle of guide rail and sliding block are as follows: linear guide can be understood as a kind of rolling
Guiding, be recycle in sliding block with infinite scroll between guide rail by steel ball, thus make load platform along guide rail easily in high precision
Linear movement, and coefficient of friction is down to 1st/50th of usual conventional slip guiding, very high positioning can be readily achieved
Precision.Sliding block is designed with end unit between guide rail, is made linear guide rail while being born the load of all directions such as up and down, patent
Return-flow system and the design of simplified structure allow guide rail to have more smooth and low noise movement.
And existing sliding block processing technology has the following two kinds:
First, process for machining, detailed process is as follows: metal material-pulling shaping-perforation-wire cutting-drill-is attacked
Silk-chamfering-deburring-quenching-fine grinding-finished product；When the process for machining has the following disadvantages: more production process, consumption
Between it is long, tool consume is big, since production process is more, causes waste of material rate higher, and the scrappage of finished product is high, to cause to produce
Higher cost；
Second, precision casting process: precision cast blank product-corase grinding-perforation-drilling-tapping-chamfering-is gone
Burr-quenching-fine grinding-finished product；The hot investment casting process for machining disadvantage: not environmentally, material low precision adds material technology
Work process increases, and tool consumption is big, since production process is more, causes material to be easy unqualified defect, the products such as blistering, cracking close
Spend lower, wear-resisting property is poor, causes scrappage higher, and big so as to cause waste of material, the production cycle is longer.
Summary of the invention
(1) technical problems to be solved
To solve the above problems, that the invention proposes a kind of techniques is simpler, environmentally friendly, cost is lower, while obtaining
Sliding block hardness is higher, the better powder pressing forming technique of wear-resisting and effect.
(2) technical solution
A kind of powder pressing forming technique of sliding block of the invention, the specific process is as follows:
Ingredient: the first step stainless steel powder or iron powder, polyethylene glycol (PEG) is weighed according to following weight ratio: stainless
Comminuted steel shot or iron powder 97-99%, polyethylene glycol (PEG) 1-3%, adjust, together according to different mobility and apparent density difference
When polyethylene glycol is placed in heatable container, water filling and heating stirring is at lysate in proportion, after by stainless steel powder or iron
Slurry is mixed evenly into powder injection；
Mist projection granulating: step 1) resulting mixed liquor is sucked gun spraying by separate pump, while carrying out mist by second step
Change, by granulation tower heat drying when spraying, obtains being granulated powder by controlling atomizing granulating technology parameter；
Compacting: third step will be granulated powder and be packed into the mold with through-hole plug, location hole and threaded hole plug, carry out
Press is suppressed to form the semi-finished product with through-hole, location hole and threaded hole；
Vacuum-sintering: 4th step uses sintering furnace, the pressed semi-finished product of press is sintered.
Tapping: 5th step carries out tapping process for being sintered in the threaded hole on resulting semi-finished product.
6th step, quenching and subzero treatment: using vacuum drying oven, and the 5th step treated semi-finished product investment vacuum drying oven is carried out
Quenching treatment carries out subzero treatment after quenching, guarantee properties of product consistency, reach the hardness stabilization of semi-finished product
HRC58—62。
Further, further include precision grinding step: to the 6th step, treated that semi-finished product refine, and reaches Product Precision
0.001mm。
Further, the mist projection granulating is sprayed by spray head, by granulation tower heat drying, makes powder certain high
When degree decline, the particle surface for being wrapped in stainless steel powder or iron powder that keeps the polyethylene glycol (PEG) in mixed liquor more uniform.
Further, the polyethylene glycol (PEG) in pressing process to playing lubrication between stainless steel powder or iron powder
With the effect of binder.
(3) beneficial effect
The present invention compared with prior art, has the advantages that the present invention using the set compression moulding technique
Sliding block is manufactured, keeps technique simpler, environmentally friendly, cost is lower, while obtained sliding block hardness is higher, effect is more preferable.
Specific embodiment
A kind of powder pressing forming technique of sliding block of the invention, the specific process is as follows:
Ingredient: the first step stainless steel powder or iron powder, polyethylene glycol (PEG) is weighed according to following weight ratio: stainless
Comminuted steel shot or iron powder 97-99%, polyethylene glycol (PEG) 1-3%, adjust, together according to different mobility and apparent density difference
When polyethylene glycol is placed in heatable container, water filling and heating stirring is at lysate in proportion, after by stainless steel powder or iron
Slurry is mixed evenly into powder injection；
Mist projection granulating: step 1) resulting mixed liquor is sucked gun spraying by separate pump, while carrying out mist by second step
Change, by granulation tower heat drying when spraying, obtains being granulated powder by controlling atomizing granulating technology parameter；
Compacting: third step will be granulated powder and be packed into the mold with through-hole plug, location hole and threaded hole plug, carry out
Press is suppressed to form the semi-finished product with through-hole, location hole and threaded hole；
Vacuum-sintering: 4th step uses sintering furnace, the pressed semi-finished product of press is sintered.
Tapping: 5th step carries out tapping process for being sintered in the threaded hole on resulting semi-finished product.
6th step, quenching and subzero treatment: using vacuum drying oven, and the 5th step treated semi-finished product investment vacuum drying oven is carried out
Quenching treatment carries out subzero treatment after quenching, guarantee properties of product consistency, reach the hardness stabilization of semi-finished product
HRC58—62。
Further, further include precision grinding step: to the 6th step, treated that semi-finished product refine, and reaches Product Precision
0.001mm。
Further, the mist projection granulating is sprayed by spray head, by granulation tower heat drying, makes powder certain high
When degree decline, the particle surface for being wrapped in stainless steel powder or iron powder that keeps the polyethylene glycol (PEG) in mixed liquor more uniform.
Further, the polyethylene glycol (PEG) in pressing process to playing lubrication between stainless steel powder or iron powder
With the effect of binder.
The present invention manufactures sliding block using the set compression moulding technique, keeps technique simpler, environmentally friendly, cost is lower, simultaneously
Obtained sliding block hardness is higher, effect is more preferable.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to structure of the invention
Think and range is defined.Without departing from the design concept of the invention, ordinary people in the field is to technology of the invention
The all variations and modifications that scheme is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
It is all described in the claims.
Claims (4)
1. a kind of powder pressing forming technique of sliding block, the specific process is as follows:
Ingredient: the first step stainless steel powder or iron powder, polyethylene glycol (PEG) is weighed according to following weight ratio: stainless steel powder
Or iron powder 97-99%, polyethylene glycol (PEG) 1-3% are adjusted according to different mobility and apparent density difference, simultaneously will
Polyethylene glycol is placed in heatable container, in proportion water filling and heating stirring is at lysate, after stainless steel powder or iron powder are infused
Enter and slurry is mixed evenly into；
Second step, mist projection granulating: sucking gun spraying by separate pump for the resulting mixed liquor of step 1), while being atomized,
By granulation tower heat drying when spraying, obtain being granulated powder by controlling atomizing granulating technology parameter；
Compacting: third step will be granulated powder and be packed into the mold with through-hole plug, location hole plug and threaded hole plug, carry out
Press is suppressed to form the semi-finished product with through-hole, location hole and threaded hole；
Vacuum-sintering: 4th step uses sintering furnace, the pressed semi-finished product of press is sintered.
Tapping: 5th step carries out tapping process for being sintered in the threaded hole on resulting semi-finished product.
6th step, quenching and subzero treatment: using vacuum drying oven, and the 5th step treated semi-finished product investment vacuum drying oven is quenched
Processing carries out subzero treatment and guarantees properties of product consistency, the hardness stabilization of semi-finished product is made to reach HRC58-after quenching
62。
2. powder pressing forming technique according to claim 1, it is characterised in that: further include precision grinding step: to the 6th
Treated that semi-finished product are refined for step, and Product Precision is made to reach 0.001mm.
3. powder pressing forming technique according to claim 1, it is characterised in that: the mist projection granulating passes through spray head
Injection makes powder in certain altitude decline by granulation tower heat drying, makes polyethylene glycol (PEG) in mixed liquor more
Uniformly it is wrapped in the particle surface of stainless steel powder or iron powder.
4. powder pressing forming technique according to claim 1, it is characterised in that: the polyethylene glycol (PEG) exists
To playing the role of lubrication and binder between stainless steel powder or iron powder in pressing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456205.3A CN110328370A (en) | 2019-05-29 | 2019-05-29 | A kind of powder pressing forming technique of sliding block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456205.3A CN110328370A (en) | 2019-05-29 | 2019-05-29 | A kind of powder pressing forming technique of sliding block |
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| Publication Number | Publication Date |
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| CN110328370A true CN110328370A (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910456205.3A Pending CN110328370A (en) | 2019-05-29 | 2019-05-29 | A kind of powder pressing forming technique of sliding block |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1316124A (en) * | 1969-10-13 | 1973-05-09 | Lucas Industries Ltd | Battery plate grids |
| CN103567447A (en) * | 2012-07-31 | 2014-02-12 | 台耀科技股份有限公司 | Method for preparing powder metallurgy workpiece and workpiece thereof |
| CN104070167A (en) * | 2013-03-29 | 2014-10-01 | 王统 | Powder injection molding process |
| CN105268975A (en) * | 2014-07-11 | 2016-01-27 | 台耀科技股份有限公司 | Preparation method for high-density powder metallurgy metal soft magnetic material |
-
2019
- 2019-05-29 CN CN201910456205.3A patent/CN110328370A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1316124A (en) * | 1969-10-13 | 1973-05-09 | Lucas Industries Ltd | Battery plate grids |
| CN103567447A (en) * | 2012-07-31 | 2014-02-12 | 台耀科技股份有限公司 | Method for preparing powder metallurgy workpiece and workpiece thereof |
| JP2014031574A (en) * | 2012-07-31 | 2014-02-20 | Taiwan Powder Technologies Co Ltd | Method of manufacturing powder metallurgy workpiece and powder metallurgy workpiece |
| CN104070167A (en) * | 2013-03-29 | 2014-10-01 | 王统 | Powder injection molding process |
| CN105268975A (en) * | 2014-07-11 | 2016-01-27 | 台耀科技股份有限公司 | Preparation method for high-density powder metallurgy metal soft magnetic material |
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Application publication date: 20191015 |