CN103213183B - Machining method for ceramic roller - Google Patents

Abstract

The invention discloses a machining method for a ceramic roller. The method comprises the following steps of manufacturing a ceramic roller shell from a raw material high-purity fused quartz; horizontally centrifugally casting a hollow roller shell and a fixing ring from a material 1Cr18Ni9Ti; machining the cast hollow roller shell and the cast fixing ring; machining shaft heads; and welding the hollow roller shell and the two shaft heads, and performing finish machining, assembly and inspection on each part. A product produced by the method is high in machining accuracy and abrasion resistance, non-deformable at high temperature and long in service life, and the production cost is lowered.

Description

The processing method of ceramic roller

Technical field

The present invention relates to glass machinery equipment manufacture field, particularly relate to a kind of processing of ceramic roller

Method.

Background technology

Ceramic roller adopts porcelain body, bearing, axle, the combined member of plastics labyrinth seal composition, and ceramic roller is the critical component in glass horizontal annealing furnace, is mainly used in carrying and transmission glass in glass horizontal annealing furnace.Existing ceramic roller thermal shock resistance is bad, yielding during high temperature, and machining accuracy is not high, and circular runout is large, and service life is short, causes scuffing to glass.

Summary of the invention

Object of the present invention is exactly the processing method that will provide a kind of ceramic roller, and it can overcome

Above defect existing for existing product.The object of the present invention is achieved like this, and the processing method of ceramic roller, is characterized in that: its procedure of processing is as follows:

One. ceramic roller shell adopts high-purity vitreous silica to be raw material manufacture;

Two. the rough-cast of hollow roller shell, retainer ring;

1). adopt horizontal type centrifugal-casting method;

2) according to design drawing, designing mould;

A. mould internal diameter=spray+shrinkage factor (1.025%)+coating layer thickness (0.8mm-1.5mm);

B. die length >=spray length+shrinkage factor (1.025%)+allowance (5-10mm);

3). furnace charge preparation should meet: 1Cr18Ni9Ti, main component and weight percent content are

C≤0.12 ， Si≤1.00 ， Mn≤2.00 ， Ti：0.80，

Cr: 17.0-19.0 ， Ni:8.0-11.0， P≤0.035， S≤0.030；

4). perform casting process:

A. cast temperature controls in 1540-1560 DEG C, b. casting rate, according to casting section thickness determination casting speed, is poured into and is shapingly generally 3-5 second,

C. mold temperature controls at 180-200 DEG C, d. spun casting rotating speed 1350-1400 rev/min, the e. 6-8 minute duration of runs;

5). the sampling of sample:

A. chemical composition presses the inspection of furnace charge preparation main component; B. mechanical performance reaches tensile strength sigma b (MN/m2) >=550, yield strength σ s (MN/m2) >=200, percentage elongation δ 5(%) >=40, shrinkage factor ψ (%) >=55 are qualified; 6). demoulding process:

A., after centrifuge stops, the demoulding immediately, prevents blank to be out of shape;

B. heat (batch) number adopts mark, remembers on foundry goods;

C. cast outer surface bead;

D. blank dimension and surface quality is checked;

Three. the processing of hollow roller shell, retainer ring:

1). by design drawing length+allowance, blanking;

2). spray is carried out alignment, and linearity controls, within 1 mm, can process;

3) carry out roughing to foreign round by design drawing, each size section external diameter stays allowance 5mm, to endoporus and seam fine finishining;

Four. spindle nose is processed:

1). adopt round steel processing, chemical composition meets: 1Cr18Ni9Ti;

2). round steel inspection of blank and blank size;

A. check outer surface flawless, external diameter meets allowance requirement;

B. spindle nose cutting length is: design drawing size adds allowance;

3). spindle nose roughing

Turning and both ends of the surface, spindle nose and hollow roll overlap union end outer circle finish turning, and other size section cylindrical stays allowance 5mm, and total length stays allowance 10-20mm;

Five. assembly welding:

1). two spindle noses processed respectively are assemblied in the two ends of hollow roller shell, assembly welding is roll body;

2). adopt hot charge practice group pair, first spot welding;

3). with hollow roller shell for benchmark, roll body is beated≤1.0mm;

4). welding;

A. hollow roller shell, spindle nose adopt 1Cr18Ni9Ti material, and welding wire adopts 308;

B. guarantee that welding meets design drawing requirement;

5). weld seam detection;

A. root and capping 100%PT check;

B. face of weld and heat affected area are without line defect;

C. weld bead height and weld seam plumpness is ensured;

Six. according to design drawing fine finishining:

1). by the roll body after welding, retainer ring and ceramic roller shell fine finishining;

2). Milling Machining: the processing of keyway, locating hole and venthole;

3) .. thread mill drilling;

4). by structural representation assembling, and with the hollow roller shell on roll body for benchmark, position beats≤and 0.5mm is qualified;

Seven. inspection:

1). ceramic roller shell, roll body and end axial surface not damaged;

2). the requirement of size conforms design drawing;

3). ceramic roller does static balance, static balance error≤50g

4). give information

A. size detection report, b. chemical analysis is reported, c. seam inspection is reported.

The processing precision of products that the present invention produces is high, and wearability is good, indeformable during high temperature, uses the longevity

Life is long, reduces production cost.

The present invention's advantage compared with prior art:

1). ceramic roller shell smooth surface, exquisiteness, circular runout are little, and machining accuracy is better than similar imported product, does not scratch glass;

2). spindle nose adopts loose-proof sleeve structural design and assembling, long service life;

3). hollow roller shell, retainer ring adopt injection forming technology, and horizontal type centrifugal-casting method is cast, and have that density is high, intensity is large, high temperature is indeformable, wear-resistant, the features such as long service life.

4). high financial profit, can reduce the integrated cost of belt conveyer, reduce maintenance man-hours.

Accompanying drawing explanation

Fig. 1 is the product structure schematic diagram that the present invention produces;

Fig. 2 is Figure 1B-B direction structure schematic diagram;

1. ceramic roller shell, 2. hollow roller shell, 3. retainer ring, 4. steady pin, 5. nut, 6. spindle nose, 7. ceramic fibre, 8. locate jackscrew A, 9. locates jackscrew B, 10. back-up ring.

Detailed description of the invention

The processing method of ceramic roller, is characterized in that: its procedure of processing is as follows:

One. ceramic roller shell adopts high-purity vitreous silica to be raw material manufacture; Have bulk density high, intensity is large, and thermal expansion is little, good thermal shock stability, and dimensional accuracy is high, and high temperature is indeformable, long service life, to the free of contamination performance of glass;

Two. the rough-cast of hollow roller shell, retainer ring;

1). adopt horizontal type centrifugal-casting method;

2) according to design drawing, designing mould;

A. mould internal diameter=spray+shrinkage factor (1.025%)+coating layer thickness (0.8mm-1.5mm);

Described spray refers to that design drawing size adds allowance; Described coating layer thickness adopts silicon powder or zirconium English powder to uniformly spray on mould inner wall, coating layer thickness 10.8-1.5mm, in the process that the molten steel of high temperature is rotated at mould, can not stick together with mould;

B. die length >=spray length+shrinkage factor (1.025%)+allowance (5-10mm);

3). furnace charge preparation should meet: 1Cr18Ni9Ti, main component and weight percent content are

C≤0.12 ， Si≤1.00 ， Mn≤2.00 ， Ti：0.80，

Cr: 17.0-19.0 ， Ni:8.0-11.0， P≤0.035， S≤0.030；

4). perform casting process:

A. cast temperature controls in 1540-1560 DEG C, b. casting rate, according to casting section thickness determination casting speed, is poured into and is shapingly generally 3-5 second,

C. mold temperature controls at 180-200 DEG C, d. spun casting rotating speed 1350-1400 rev/min, the e. 6-8 minute duration of runs;

5). the sampling of sample:

A. chemical composition presses the inspection of furnace charge preparation main component; B. mechanical performance reaches tensile strength sigma b (MN/m2) >=550, yield strength σ s (MN/m2) >=200, percentage elongation δ 5(%) >=40, shrinkage factor ψ (%) >=55 are qualified; 6). demoulding process:

A., after centrifuge stops, the demoulding immediately, prevents blank to be out of shape;

B. heat (batch) number adopts mark, remembers on foundry goods;

C. cast outer surface bead;

D. blank dimension and surface quality is checked;

Three. the processing of hollow roller shell, retainer ring:

1). by design drawing length+allowance, blanking;

2). spray is carried out alignment, and linearity controls, within 1 mm, can process;

3) carry out roughing to foreign round by design drawing, each size section external diameter stays allowance 5mm, to endoporus and seam fine finishining;

Four. spindle nose is processed:

1). adopt round steel processing, chemical composition meets: 1Cr18Ni9Ti;

2). round steel inspection of blank and blank size;

A. check outer surface flawless, external diameter meets allowance requirement;

B. spindle nose cutting length is: design drawing size adds allowance;

3). spindle nose roughing

Turning and both ends of the surface, spindle nose and hollow roll overlap union end outer circle finish turning, and other size section cylindrical stays allowance 5mm, the total allowance 10-20mm of length;

Five. assembly welding:

1). two spindle noses processed respectively are assemblied in the two ends of hollow roller shell, assembly welding is roll body;

2). adopt hot charge practice group pair, first spot welding;

3). with hollow roller shell for benchmark, roll body is beated≤1.0mm;

4). welding;

A. hollow roller shell, spindle nose adopt 1Cr18Ni9Ti material, and welding wire adopts 308;

B. guarantee that welding meets design drawing requirement;

5). weld seam detection;

A. root and capping 100%PT check;

B. face of weld and heat affected area are without line defect;

C. weld bead height and weld seam plumpness is ensured;

Six. according to design drawing fine finishining:

1). by the roll body after welding, retainer ring and ceramic roller shell fine finishining;

2). Milling Machining: the processing of keyway, locating hole and venthole;

3). thread mill drilling;

4). by structural representation assembling, and with the hollow roller shell on roll body for benchmark, position beats≤and 0.5mm is qualified;

Seven. inspection:

1). ceramic roller shell, roll body and end axial surface not damaged;

2). the requirement of size conforms design drawing;

3). ceramic roller does static balance, static balance error≤50g

4). give information

A. size detection report, b. chemical analysis is reported, c. seam inspection is reported.

Claims (1)

1. the processing method of ceramic roller, is characterized in that: its procedure of processing is as follows:

One, ceramic roller shell adopts high-purity vitreous silica to be raw material manufacture;

Two, the rough-cast of hollow roller shell, retainer ring;

1), horizontal type centrifugal-casting method is adopted;

2), according to design drawing, designing mould;

A. mould internal diameter=spray+shrinkage factor is 1.025%+coating layer thickness is 0.8mm-1.5mm;

B. die length >=spray length+shrinkage factor is 1.025%+ allowance is 5-10mm;

3), furnace charge preparation should meet: 1Cr18Ni9Ti, main component and weight percent content are

C≤0.12 ， Si≤1.00 ， Mn≤2.00 ， Ti：0.80，

Cr: 17.0-19.0 ， Ni:8.0-11.0， P≤0.035， S≤0.030；

4), casting process is performed:

A. cast temperature controls in 1540-1560 DEG C, b. casting rate, according to casting section thickness determination casting speed, is poured into and is shaped to 3-5 second,

C. mold temperature controls at 180-200 DEG C, d. spun casting rotating speed 1350-1400 rev/min, the e. 6-8 minute duration of runs;

5). the sampling of sample:

A. chemical composition presses the inspection of furnace charge preparation main component; B. mechanical performance reaches tensile strength sigma b (MN/m2) >=550, yield strength σ s (MN/m2) >=200, percentage elongation δ 5(%) >=40, shrinkage factor ψ (%) >=55 are qualified; 6). demoulding process:

A., after centrifuge stops, the demoulding immediately, prevents blank to be out of shape;

B. heat (batch) number adopts mark, remembers on foundry goods;

C. cast outer surface bead;

D. blank dimension and surface quality is checked;

Three. the processing of hollow roller shell, retainer ring:

1). by design drawing length+allowance, blanking;

2). spray is carried out alignment, and linearity controls, within 1 mm, can process;

3) carry out roughing to foreign round by design drawing, each size section external diameter stays allowance 5mm, to endoporus and seam fine finishining;

Four. spindle nose is processed:

1). adopt round steel processing, chemical composition meets: 1Cr18Ni9Ti;

2). round steel inspection of blank and blank size;

A. check outer surface flawless, external diameter meets allowance requirement;

B. spindle nose cutting length is: design drawing size adds allowance;

3). spindle nose roughing

Turning and both ends of the surface, spindle nose and hollow roll overlap union end outer circle finish turning, and other size section cylindrical stays allowance 5mm, and total length stays allowance 10-20mm;

Five. assembly welding:

1). two spindle noses processed respectively are assemblied in the two ends of hollow roller shell, assembly welding is roll body;

2). adopt hot charge practice group pair, first spot welding;

3). with hollow roller shell for benchmark, roll body is beated≤1.0mm;

4). welding;

A. hollow roller shell, spindle nose adopt 1Cr18Ni9Ti material, and welding wire adopts 308;

B. guarantee that welding meets design drawing requirement;

5). weld seam detection;

A. root and capping 100%PT check;

B. face of weld and heat affected area are without line defect;

C. weld bead height and weld seam plumpness is ensured;

Six. according to design drawing fine finishining:

1). by the roll body after welding, retainer ring and ceramic roller shell fine finishining;

2). Milling Machining: the processing of keyway, locating hole and venthole;

3). thread mill drilling;

4). by structural representation assembling, and with the hollow roller shell on roll body for benchmark, position beats≤and 0.5mm is qualified;

Seven. inspection:

1). ceramic roller shell, roll body and end axial surface not damaged;

2). the requirement of size conforms design drawing;

3). ceramic roller does static balance, static balance error≤50g

4). give information

A. size detection report, b. chemical analysis is reported, c. seam inspection is reported.