CN104625604A - Production technology of extremely flat nuts - Google Patents
Production technology of extremely flat nuts Download PDFInfo
- Publication number
- CN104625604A CN104625604A CN201410730471.8A CN201410730471A CN104625604A CN 104625604 A CN104625604 A CN 104625604A CN 201410730471 A CN201410730471 A CN 201410730471A CN 104625604 A CN104625604 A CN 104625604A
- Authority
- CN
- China
- Prior art keywords
- square steel
- hexagonal square
- jam nut
- steel section
- section
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 238000010079 rubber tapping Methods 0.000 claims abstract description 15
- 229910021538 borax Inorganic materials 0.000 claims abstract description 13
- 239000004328 sodium tetraborate Substances 0.000 claims abstract description 13
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000010791 quenching Methods 0.000 claims abstract description 9
- 230000000171 quenching effect Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000004080 punching Methods 0.000 claims abstract description 7
- 239000003607 modifier Substances 0.000 claims description 8
- 238000012805 post-processing Methods 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
Abstract
A production technology of extremely flat nuts includes the following steps of raw material selection, cold heating, punching, tapping and post-treatment. In the punching process, pits are punched in the two ends of a steel segment, and then middle holes are punched in the pits. Heat treatment processes exist in both the raw material selection process and the post-treatment process, and quenching liquid adopted in the post-treatment process is borax solution. The production technology of the extremely flat nuts has the advantages of being high in production efficiency, stable in product quality, low in production cost, convenient to operate and the like, thereby having good application prospects in the industry.
Description
Technical field
The invention belongs to nut manufacturing technology field, particularly a kind of special jam nut production technology.
Background technology
Present nut is produced and is mostly adopted hexagonal square steel to produce through processes such as cut-out, boring, tapping, but very little for thickness, that endoporus is large, wall thickness is little special jam nut, process according to said method, processing difficulties can be caused, such as clamping is inconvenient, easily produce distortion, processing because of clamping after the problems such as precision is not high, finally cause production efficiency lowly, unstable product quality.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art and provide a kind of special jam nut production technology, the advantages such as production efficiency is high, constant product quality, production cost are low, easy to operate that it has.
Technical scheme of the present invention is: a kind of special jam nut production technology, comprises the steps:
(1) raw material are selected: the positive hexagonal square steel rod of raw material selection carbon steel, positive hexagonal square steel rod is cut into positive hexagonal square steel section through cutting machine, the length of the diameter of hexagonal square steel rod and every section of positive hexagonal square steel by the volume choose reasonable of the special jam nut that will produce, then aligns hexagonal square steel section and heat-treats;
(2) cold-heading: the positive hexagonal square steel section after modulation treatment is put into cold headers, at room temperature carry out cold-heading, the cold-heading of positive hexagonal square steel is become oblique hexagonal square steel, further oblique hexagonal square steel is flattened, final cold-heading becomes cylindrical steel section, and the thickness of this cylindrical steel section and diameter just in time meet required special jam nut specification;
(3) punching: first the both ends of the surface of cylindrical steel section after flattening are rushed a pit with drift respectively, two pits along the central point of cylindrical steel section, but are not communicated with, and then rush interstitial hole in pit;
(4) tapping: special jam nut can be formed after the cylindrical steel section tapping machine having rushed centre bore is processed internal thread in interstitial hole;
(5) post processing: by the special jam nut that formed after completing tapping after modifier treatment, then through inspection, can pack.
Further, what align that hexagonal square steel section heat-treats is solution treatment.
Further, in modifier treatment, hardening heat is 80 ~ 100 DEG C, temperature retention time 0.5 ~ 1 hour, the quenching media selected during quenching is the aqueous solution of borax, in borax soln, the mass percentage of borax is 3 ~ 6%, and temperature is 550 ~ 650 DEG C, is incubated 1 ~ 2.5 hour.
The present invention compared with prior art has following features: special jam nut production technology provided by the invention adopts first rushes pit at cylindrical steel section two ends, then in pit, interstitial hole is rushed, direct punching can be effectively avoided to crack, the problems such as distortion, all heat treatment has been carried out in addition before steel section carries out cold-heading He after tapping, first time heat treatment is that steel section is easy to processing, second time heat treatment can improve the combination property of special jam nut, comprehensive above 2 the present invention have the stability that improves production efficiency and product quality, reduce production cost, advantage simple to operate, in industry there is good application prospect.
Detailed description of the invention
Embodiment 1:
A kind of special jam nut production technology, comprises the steps:
(1) raw material are selected: the positive hexagonal square steel rod of raw material selection carbon steel, positive hexagonal square steel rod is cut into positive hexagonal square steel section through cutting machine, the length of the diameter of hexagonal square steel rod and every section of positive hexagonal square steel by the volume choose reasonable of the special jam nut that will produce, then aligns hexagonal square steel section and carries out solution treatment;
(2) cold-heading: the positive hexagonal square steel section after heat treatment is put into cold headers, at room temperature carry out cold-heading, the cold-heading of positive hexagonal square steel is become oblique hexagonal square steel, further oblique hexagonal square steel is flattened, final cold-heading becomes cylindrical steel section, and the thickness of this cylindrical steel section and diameter just in time meet required special jam nut specification;
(3) punching: first the both ends of the surface of cylindrical steel section after flattening are rushed a pit with drift respectively, two pits along the central point of cylindrical steel section, but are not communicated with, and then rush interstitial hole in pit;
(4) tapping: special jam nut can be formed after the cylindrical steel section tapping machine having rushed centre bore is processed internal thread in interstitial hole;
(5) post processing: by the special jam nut that formed after completing tapping after modifier treatment, then through inspection, can pack.
Hardening heat selected by modifier treatment wherein in post processing is 80 DEG C, temperature retention time 1 hour, and the quenching media selected during quenching is the aqueous solution of borax, and in borax soln, the mass percentage of borax is 3%, and temperature is 550 DEG C, is incubated 1 hour.
Embodiment 2:
A kind of special jam nut production technology, comprises the steps:
(1) raw material are selected: the positive hexagonal square steel rod of raw material selection carbon steel, positive hexagonal square steel rod is cut into positive hexagonal square steel section through cutting machine, the length of the diameter of hexagonal square steel rod and every section of positive hexagonal square steel by the volume choose reasonable of the special jam nut that will produce, then aligns hexagonal square steel section and carries out solution treatment;
(2) cold-heading: the positive hexagonal square steel section after heat treatment is put into cold headers, at room temperature carry out cold-heading, the cold-heading of positive hexagonal square steel is become oblique hexagonal square steel, further oblique hexagonal square steel is flattened, final cold-heading becomes cylindrical steel section, and the thickness of this cylindrical steel section and diameter just in time meet required special jam nut specification;
(3) punching: first the both ends of the surface of cylindrical steel section after flattening are rushed a pit with drift respectively, two pits along the central point of cylindrical steel section, but are not communicated with, and then rush interstitial hole in pit;
(4) tapping: special jam nut can be formed after the cylindrical steel section tapping machine having rushed centre bore is processed internal thread in interstitial hole;
(5) post processing: by the special jam nut that formed after completing tapping after modifier treatment, then through inspection, can pack.
Hardening heat selected by modifier treatment wherein in post processing is 100 DEG C, temperature retention time 0.5 hour, and the quenching media selected during quenching is the aqueous solution of borax, and in borax soln, the mass percentage of borax is 6%, and temperature is 650 DEG C, is incubated 2.5 hours.
Claims (3)
1. a special jam nut production technology, comprises the steps:
(1) raw material are selected: the positive hexagonal square steel rod of raw material selection carbon steel, positive hexagonal square steel rod is cut into positive hexagonal square steel section through cutting machine, the length of the diameter of hexagonal square steel rod and every section of positive hexagonal square steel by the volume choose reasonable of the special jam nut that will produce, then aligns hexagonal square steel section and heat-treats;
(2) cold-heading: the positive hexagonal square steel section after heat treatment is put into cold headers, at room temperature carry out cold-heading, the cold-heading of positive hexagonal square steel is become oblique hexagonal square steel, further oblique hexagonal square steel is flattened, final cold-heading becomes cylindrical steel section, and the thickness of this cylindrical steel section and diameter just in time meet required special jam nut specification;
(3) punching: first the both ends of the surface of cylindrical steel section after flattening are rushed a pit with drift respectively, two pits along the central point of cylindrical steel section, but are not communicated with, and then rush interstitial hole in pit;
(4) tapping: special jam nut can be formed after the cylindrical steel section tapping machine having rushed centre bore is processed internal thread in interstitial hole;
(5) post processing: by the special jam nut that formed after completing tapping after modifier treatment, then through inspection, can pack.
2. special jam nut production technology according to claim 1, is characterized in that: what align that hexagonal square steel section heat-treats is solution treatment.
3. special jam nut production technology according to claim 1, it is characterized in that: in modifier treatment, hardening heat is 80 ~ 100 DEG C, temperature retention time 0.5 ~ 1 hour, the quenching media selected during quenching is the aqueous solution of borax, in borax soln, the mass percentage of borax is 3 ~ 6%, temperature is 550 ~ 650 DEG C, is incubated 1 ~ 2.5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730471.8A CN104625604A (en) | 2014-12-05 | 2014-12-05 | Production technology of extremely flat nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730471.8A CN104625604A (en) | 2014-12-05 | 2014-12-05 | Production technology of extremely flat nuts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104625604A true CN104625604A (en) | 2015-05-20 |
Family
ID=53205082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410730471.8A Pending CN104625604A (en) | 2014-12-05 | 2014-12-05 | Production technology of extremely flat nuts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104625604A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014787A (en) * | 2018-08-30 | 2018-12-18 | 平湖巨龙紧固件有限公司 | A kind of processing technology of nut |
| CN109048237A (en) * | 2018-11-05 | 2018-12-21 | 浙江瑞昭科技有限公司 | A kind of commercial vehicle specialized nut production technology |
| CN109128729A (en) * | 2018-11-22 | 2019-01-04 | 储国亲 | A kind of processing technology of nut |
-
2014
- 2014-12-05 CN CN201410730471.8A patent/CN104625604A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014787A (en) * | 2018-08-30 | 2018-12-18 | 平湖巨龙紧固件有限公司 | A kind of processing technology of nut |
| CN109048237A (en) * | 2018-11-05 | 2018-12-21 | 浙江瑞昭科技有限公司 | A kind of commercial vehicle specialized nut production technology |
| CN109128729A (en) * | 2018-11-22 | 2019-01-04 | 储国亲 | A kind of processing technology of nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |