CN101913031A - Method for processing wear-resistant material in manufacturing of vertical grinding machine - Google Patents
Method for processing wear-resistant material in manufacturing of vertical grinding machine Download PDFInfo
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- CN101913031A CN101913031A CN2010102192489A CN201010219248A CN101913031A CN 101913031 A CN101913031 A CN 101913031A CN 2010102192489 A CN2010102192489 A CN 2010102192489A CN 201010219248 A CN201010219248 A CN 201010219248A CN 101913031 A CN101913031 A CN 101913031A
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- vertical mill
- wear
- grinding machine
- abrasive material
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Abstract
The invention discloses a method for processing a wear-resistant material in the manufacturing of a vertical grinding machine, which comprises the following steps of: welding, fault detection, paint spraying, processing and assembling of wear-resistant components. Compared with the traditional process, products produced by improving the process for processing the wear-resistant material can extend the continuous pertaining time of the vertical grinding machine and increase efficiency. The method can effectively guarantee the product quality by means of analyzing the vertical grinding machine by using an inspection technology, quality process control, and the like.
Description
Technical field
The present invention relates to vertical grinding machine technology for making field, relate to specifically in vertical mill manufacturing process, use stiff dough surface overlaying treatment process, adopt ultrasonic examination technological improvement manufacturing process Vertical Mill mill liner plate, roller shell processing.
Background technology
The present invention relates to vertical mill make in the improvement of high-abrasive material and manufacturing process.The operation principle of vertical mill and structure have determined that the wearing and tearing of vertical mill mainly are extrusion abrasion and injection wear.Other physics, chemical abrasion are as adherence wearing and tearing, fatigue of materials is degraded and chemical reaction corrosion etc. only plays a secondary role.Extrusion abrasion: roller shell and mill liner plate be at work owing to be subjected to high extruding force effect, and contact-making surface and had the differential slippage between the grinding material, shows as at parts surface and grind and micro cutting.At present, Vertical Mill grinding roller compression system mostly is the pneumohydraulic spring system (rigidity reaches 1.5～3.2kN/mm) exerts pressure, and operating pressure in service is big, can reach 400～800kN.The condition of work of grinding assembly is more and more harsh, and promptly tear strength is more and more high, and this just has higher requirement to the anti-wear performance of grinding assembly.Injection wear: for guaranteeing that Vertical Mill normally moves, must guarantee certain ventilation in the grinding machine, promptly each position must keep certain wind speed, must guarantee to have the wind speed of 40～60m/s as vane in the grinding machine.Thus, the different parts of grinding machine inside produces injection wear because of being subjected to washing away of high concentration dusty gas for a long time.When using high rigidity material such as Vertical Mill pulverizing cement raw material, slag, mainly worry the service life of Vertical Mill grinding assembly and safeguard that rehabilitation expense crosses problems such as height.When wearing and tearing acquire a certain degree, keep in repair, reduce continuous service time, influence operating efficiency with regard to stopping production.The complex structure of vertical mill, the required precision strictness, parts such as its shell, base, column are weldments, and are strict to quality control in process of production, even so, can't once qualified problem in the time of the general assembly of user scene also can occurring.
Summary of the invention
In view of the defective that prior art exists, the objective of the invention is to provide the processing method of high-abrasive material in a kind of vertical mill manufacturing, prolong the stream time of vertical mill, raise the efficiency.By inspection technology vertical mill is analyzed, guaranteed product quality effectively by means such as Quality Process controls.
For achieving the above object, the technology used in the present invention solution mainly is the processing method of high-abrasive material during vertical mill is made.
The processing technology of high-abrasive material is improved one's methods in the vertical mill manufacturing, and the method includes the steps of:
(1) welding:
Common manufacturing process welding shell, base, pillar parts.
(2) flaw detection:
Internal-external quality to cast component is carried out ultrasonic examination.
(3) spray paint:
To the processing of spraying paint of each parts.
(4) wear parts processing:
Use stiff dough surface overlaying treatment process to Vertical Mill mill liner plate, roller shell processing.
(5) assembling:
Complete machine is assembled debugging.
After adopting such scheme, compared with prior art have following beneficial effect: the metal microstructure of handling via hard-facing is quite fine and smooth, can form quite stable and hard carbide, shows out very wear-resisting characteristic, long service life.Under the normal condition, improve 30%～100% the service life of comparable existing product in service life, and the product that has may be higher.But the repeated multiple times built-up welding can be saved maintenance cost simultaneously, reduces the consumption of the energy, enhances productivity.For the defective of utilizing in the new product production process in the defect detection on ultrasonic basis discovery workpiece, further control production process and product quality.
The specific embodiment
The processing method of high-abrasive material during vertical mill is made, the method includes the steps of:
(1) welding:
Common manufacturing process welding shell, base, pillar parts.
(2) flaw detection:
Internal-external quality to the monoblock cast parts is carried out ultrasonic examination.Precision is ± 0.2mm.To the crackle that the shell of thickness of slab 50mm produces, its certainty of measurement reaches ± and 5%.
(3) spray paint:
To the processing of spraying paint of each parts.
(4) wear parts processing:
Use stiff dough surface overlaying treatment process to Vertical Mill mill liner plate, roller shell processing.Be applicable to the processing of rich chromium cast iron, the hard serial wear resistance castings wearing layer of nickel, its hardness can reach more than the HRC62, and exceeds more than 2.5 times than the life-span of Ni-Cr, nickel hard material.
(5) assembling:
Complete machine is assembled debugging.
Claims (3)
1. the processing method of high-abrasive material during vertical mill is made, the method includes the steps of:
(1) welding:
Common manufacturing process welding shell, base, pillar parts;
(2) flaw detection:
Internal-external quality to cast component is carried out ultrasonic examination;
(3) spray paint:
To the processing of spraying paint of each parts;
(4) wear parts processing:
Use stiff dough (wearing layer) regeneration soldering technology and technology to Vertical Mill mill liner plate, roller shell processing;
(5) assembling:
Complete machine is assembled debugging.
2. the processing method of high-abrasive material during vertical mill according to claim 1 is made, it is characterized in that: the internal-external quality to cast component is carried out ultrasonic examination.
3. the processing method of high-abrasive material during vertical mill according to claim 1 is made, it is characterized in that using stiff dough surface overlaying treatment process to Vertical Mill mill liner plate, roller shell processing, be applicable to processing, its hardness and the life-span height and the other materials of rich chromium cast iron, the hard serial wear resistance castings wearing layer of nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102192489A CN101913031A (en) | 2010-07-07 | 2010-07-07 | Method for processing wear-resistant material in manufacturing of vertical grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102192489A CN101913031A (en) | 2010-07-07 | 2010-07-07 | Method for processing wear-resistant material in manufacturing of vertical grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101913031A true CN101913031A (en) | 2010-12-15 |
Family
ID=43320749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102192489A Pending CN101913031A (en) | 2010-07-07 | 2010-07-07 | Method for processing wear-resistant material in manufacturing of vertical grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101913031A (en) |
-
2010
- 2010-07-07 CN CN2010102192489A patent/CN101913031A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Dalian Joyum Heavy Industries. Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Dalian Joyum Heavy Industries. Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101215 |