CN102198496A - Process for processing cylinder sleeve of diesel engine - Google Patents
Process for processing cylinder sleeve of diesel engine Download PDFInfo
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- CN102198496A CN102198496A CN 201110139776 CN201110139776A CN102198496A CN 102198496 A CN102198496 A CN 102198496A CN 201110139776 CN201110139776 CN 201110139776 CN 201110139776 A CN201110139776 A CN 201110139776A CN 102198496 A CN102198496 A CN 102198496A
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Abstract
The invention discloses a process for processing a cylinder sleeve of a diesel engine. The process comprises the following steps of: a, coating paint, wherein a metal die and a baffle are prepared, and the paint is prepared; b, smelting and pouring, wherein the smelt process controls the carbon and silicon equivalent C to be between 3.7 and 3.9, the silicon carbon ratio Si/C to be between 0.6 and 0.73, and the pouring requirement is as the specification; c, repairing a pouring system, repairing the inner wall of a quantitative pouring packet with refractory bricks and water glass sands, introducing CO to harden the inner wall of the quantitative pouring packet, coating the paint and drying; d, demolding, thermally treating and delivering, wherein, in cast demolding, a metal die pin, front and rear baffles can be removed after 8 hours, the cast is impacted by a hammer by moving from the small end to the big end; and e, thermally treating the cast, wherein the cast is subject to shot blasting treatment and aging treatment. The process for processing the cylinder sleeve of the diesel engine has the advantages of high processing accuracy, precise process procedure and high quality of processed products.
Description
Technical field
The present invention relates to a kind of cylinder jacket of diesel engine processing technology.
Background technology
Traditional cylinder jacket of diesel engine processing technology because technological process is meticulous inadequately, and on the bridging link technological requirement inaccuracy, cause the piston precision that processes by this kind processing technology not enough, product quality is relatively poor.
Summary of the invention
The purpose of this invention is to provide a kind of cylinder jacket of diesel engine processing technology.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of cylinder jacket of diesel engine processing technology may further comprise the steps:
Step a hangs coating: the preparation of metal pattern, baffle plate, coating preparation;
Step b, melting, cast, smelting technology control: carbon and silicon equivalent C is 3.7～3.9, and silicon, carbon ratio Si/C are 0.6～0.73, and cast requires: before molten iron is come out of the stove, the metal pattern that will hang up properly coating earlier is placed on the centrifuge, hold to the pouring truck direction greatly, molten iron is poured in the quantitative pouring ladle, beat dirty, when temperature is suitable, can pour into a mould poring rate 45～55S;
Step c, running gate system is repaiied system, quantitatively pouring ladle: the bag inwall is repaiied system with refractory brick, water-glass sand, logical CO sclerosis, swabbing is dried then;
Steps d, the demoulding, heat treatment, transmission: the foundry goods demoulding: after the 8h, can remove metal pattern pin and front and rear baffle, impact foundry goods with iron hammer, by small end to big end activity;
Step e, heat treating castings: foundry goods needs through bead and carries out Ageing Treatment.
When hanging coating among the described step a, take out a certain amount of coating that stirs, add the good gauge water glass of dilute with water again, stir.
Pouring temperature is 1490～1450 ℃ among the described step b, must not be lower than 1390 ℃.
Cylinder jacket of diesel engine processing technology of the present invention, the machining accuracy height, technological process is rigorous, and the product processed quality is higher.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the process chart of cylinder jacket of diesel engine processing technology of the present invention.
The specific embodiment
As shown in Figure 1, cylinder jacket of diesel engine processing technology of the present invention, may further comprise the steps: step a, hang coating: the preparation of metal pattern, baffle plate: the remaining coating of metal pattern inner chamber is removed after water is wet, advance the kiln preheating, the inboard water-glass sand ramming of using of front and rear baffle is wipeed off, add CO and make its sclerosis, brush one time lead powder, advance kiln together with metal pattern, the kiln temperature is between 350～400 ℃, more than the temperature retention time 3h, because the middle frequency furnace transformer is 250kw, the electrical kiln capacity is 210kw, for this reason, electric furnace, electrical kiln can not send electricity work simultaneously, the coating preparation; Coating component: silica flour, bentonite, powdery lead powder, sheet lead powder, diatomite, waterglass and suitable quantity of water, above-mentioned material (except the waterglass) adds the program of mixer: water, lead powder, bentonite, diatomite, silica flour, more than the mixing time 24h, when hanging coating, take out a certain amount of coating that stirs, add the good gauge water glass of dilute with water again, stir, by the rightabout that metal pattern turns to coating is injected in the metal pattern with measure hopper; Extension coating requires: test run, be ready to institute's coatings formulated, the metal pattern that preheating is good winches on the centrifuge, holds greatly towards the operator, remove foreign material in the mould, by putting forward and backward baffle plate (hanging sand), fastening good pin well towards interior, start when centrifuge rotates when normal, is slowly injected coating.Time is 8～15s, with the cover slit of dead baffle plate and metal pattern contact position of brush dipping material, uses the pin check thickness of coating layer, is generally 1.5～2mm, and inept must scraping off heavily hung, and the metal pattern that hangs up properly coating placed continued baking in the kiln.The kiln temperature is 220～240 ℃, and the metal pattern temperature must not be lower than 100 ℃ during cast; Step b, melting, cast, smelting technology control: carbon and silicon equivalent C is 3.7～3.9, silicon, carbon ratio Si/C is 0.6～0.73, and cast requires: before molten iron is come out of the stove, the metal pattern that will hang up properly coating earlier is placed on the centrifuge, hold to the pouring truck direction greatly, molten iron is poured in the quantitative pouring ladle, beat dirty, when temperature is suitable, can pour into a mould, poring rate 45～55S, 1490～1450 ℃ of pouring temperatures must not be lower than 1390 ℃, foundry goods internal diameter controlled quentity controlled variable: φ 250 ± 5, for preventing to loosen, be incubated downtime to the big end of metal pattern place dispenser perlite immediately after the molten iron casting: winter, casting back 6min shut down, summer, casting back 8min shut down, after foundry goods stops fully, walk air cooling together with metal pattern one lifting, the foundry goods cooling can be unpacked the demoulding after 8 hours; Step c, running gate system is repaiied system, quantitatively pouring ladle: the bag inwall is repaiied system with refractory brick, water-glass sand, logical CO sclerosis, swabbing then, oven dry waters that indentured that steam vent φ 5 is set is some everywhere, sub-dimensional requirement and reparation are flowed in the mouth of a river: it is some that the whole body is provided with φ 5 steam vents, inner chamber is repaiied system with refractory brick, water-glass sand, logical CO sclerosis, brushing lead powder coating, by good slag trap, slag trap (speed limit plate) physical dimension: composition and making: graphite cake can provide the dimensional requirement outsourcing simultaneously in oven dry.Must conscientiously toast during use, otherwise baffle plate meeting explosion in the cast, refractory plate, every block of plate is got refractory material 2000g, add water, 120～135 milliliters, hand-mixing is finished in limitting 30 minutes, ramming is in mould, and the 24h that dries in the shade takes out sintering in furnace then, and the kiln temperature is 800～900 ℃.Temperature retention time is more than 2 hours.(also can carry out) with heat treated part, after refractory plate sinters, harvesting, standby; Steps d, the demoulding, heat treatment, transmission: the foundry goods demoulding: after the 8h, can remove metal pattern pin and front and rear baffle, impact foundry goods with iron hammer, by small end to big end activity; Step e, heat treating castings: foundry goods needs through bead and carries out Ageing Treatment, after the heat treatment " sheet " mail to process unit, for the cylinder sleeve of getting " sheet ", press the processing technology card by process unit, require " sheet " taken out, be processed into sample and send the check of physics and chemistry chamber, for eliminating internal stress, after the cylinder sleeve roughing, need carry out the Ageing Treatment second time before the fine finishining, require as follows: shove charge below 150 ℃, firing rate should be followed≤100 ℃/h, 580 ± 20 ℃ * 1h of heating-up temperature, cooling, speed must not surpass 75 ℃/h, the air cooling of coming out of the stove below 200 ℃.
Claims (3)
1. a cylinder jacket of diesel engine processing technology is characterized in that, may further comprise the steps:
Step a hangs coating: the preparation of metal pattern, baffle plate, coating preparation;
Step b, melting, cast, smelting technology control: carbon and silicon equivalent C is 3.7～3.9, and silicon, carbon ratio Si/C are 0.6～0.73, and cast requires: before molten iron is come out of the stove, the metal pattern that will hang up properly coating earlier is placed on the centrifuge, hold to the pouring truck direction greatly, molten iron is poured in the quantitative pouring ladle, beat dirty, when temperature is suitable, can pour into a mould poring rate 45～55S;
Step c, running gate system is repaiied system, quantitatively pouring ladle: the bag inwall is repaiied system with refractory brick, water-glass sand, logical CO sclerosis, swabbing is dried then;
Steps d, the demoulding, heat treatment, transmission: the foundry goods demoulding: after the 8h, can remove metal pattern pin and front and rear baffle, impact foundry goods with iron hammer, by small end to big end activity;
Step e, heat treating castings: foundry goods needs through bead and carries out Ageing Treatment.
2. cylinder jacket of diesel engine processing technology according to claim 1 is characterized in that: when hanging coating among the described step a, take out a certain amount of coating that stirs, add the good gauge water glass of dilute with water again, stir.
3. cylinder jacket of diesel engine processing technology according to claim 1 is characterized in that: pouring temperature is 1490～1450 ℃ among the described step b, must not be lower than 1390 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110139776 CN102198496A (en) | 2011-05-27 | 2011-05-27 | Process for processing cylinder sleeve of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110139776 CN102198496A (en) | 2011-05-27 | 2011-05-27 | Process for processing cylinder sleeve of diesel engine |
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| Publication Number | Publication Date |
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| CN102198496A true CN102198496A (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110139776 Pending CN102198496A (en) | 2011-05-27 | 2011-05-27 | Process for processing cylinder sleeve of diesel engine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350205A (en) * | 2013-06-07 | 2013-10-16 | 马鞍山市恒毅机械制造有限公司 | Centrifugal casting method for engine cylinder sleeve |
| CN108441756A (en) * | 2018-06-13 | 2018-08-24 | 中原内配集团安徽有限责任公司 | A kind of wearability low-carbon cylinder jacket |
| CN108486524A (en) * | 2018-06-13 | 2018-09-04 | 中原内配集团安徽有限责任公司 | A kind of preparation process of wear-resistant coating cylinder jacket |
| CN108796249A (en) * | 2018-06-13 | 2018-11-13 | 中原内配集团安徽有限责任公司 | A kind of local granule Enhancement Method of aluminum alloy cylinder sleeve |
| CN109306915A (en) * | 2018-06-13 | 2019-02-05 | 中原内配集团安徽有限责任公司 | A kind of cast-in excircle self-locking thread cylinder set and its manufacturing process |
| CN115229153A (en) * | 2022-07-08 | 2022-10-25 | 安徽省岳西缸套有限公司 | Centrifugal casting machine is used in cylinder liner production |
-
2011
- 2011-05-27 CN CN 201110139776 patent/CN102198496A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350205A (en) * | 2013-06-07 | 2013-10-16 | 马鞍山市恒毅机械制造有限公司 | Centrifugal casting method for engine cylinder sleeve |
| CN108441756A (en) * | 2018-06-13 | 2018-08-24 | 中原内配集团安徽有限责任公司 | A kind of wearability low-carbon cylinder jacket |
| CN108486524A (en) * | 2018-06-13 | 2018-09-04 | 中原内配集团安徽有限责任公司 | A kind of preparation process of wear-resistant coating cylinder jacket |
| CN108796249A (en) * | 2018-06-13 | 2018-11-13 | 中原内配集团安徽有限责任公司 | A kind of local granule Enhancement Method of aluminum alloy cylinder sleeve |
| CN109306915A (en) * | 2018-06-13 | 2019-02-05 | 中原内配集团安徽有限责任公司 | A kind of cast-in excircle self-locking thread cylinder set and its manufacturing process |
| CN115229153A (en) * | 2022-07-08 | 2022-10-25 | 安徽省岳西缸套有限公司 | Centrifugal casting machine is used in cylinder liner production |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110928 |