CN107813433A - A kind of special construction steel wire method for cutting silicon chips of NTC PV800H silicon chip cutters - Google Patents
A kind of special construction steel wire method for cutting silicon chips of NTC PV800H silicon chip cutters Download PDFInfo
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- CN107813433A CN107813433A CN201710345764.8A CN201710345764A CN107813433A CN 107813433 A CN107813433 A CN 107813433A CN 201710345764 A CN201710345764 A CN 201710345764A CN 107813433 A CN107813433 A CN 107813433A
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- steel wire
- mortar
- special construction
- cutting
- silicon chip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/04—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools
- B28D5/045—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools by cutting with wires or closed-loop blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
- B24B27/0633—Grinders for cutting-off using a cutting wire
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
A kind of special construction steel wire method for cutting silicon chips of NTC PV800H silicon chip cutters, invention are related to photovoltaic industry.The cutting machine home roll slot pitch is 0.348mm, and special construction steel wire diameter is 0.115mm；Using unidirectional cutting technique, technological parameter is：Steel wire tension force：15N~23N, feed velocity：0.24mm/min~0.47mm/min, steel wire speed：640m/min~760m/min, line sending distance：70m/min~120m/min, mortar temperature：20 DEG C~23 DEG C, mortar flow：80l/min~100l/min；Steel wire hilted broadsword dosage 290km~400km, often cut two knives and change a mortar, mortar replacing amount is controlled in 600kg~800kg.
Description
Technical field
The present invention relates to photovoltaic industry, the special construction steel wire silicon chip of specifically a kind of NTC-PV800H silicon chip cutters is cut
Segmentation method.
Background technology
Cost is most important for photovoltaic industry, and wherein silicon chip processing cost accounts for more than 30%, improves multi-wire saw
Technique and lifting cutting power, be the ring of key one for reducing silicon chip integrated cost, strengthen multi-wire saw new technology and improve to research and develop,
Reduce the lifeline that production cost is long-term development of enterprise.
The content of the invention
The technical problems to be solved by the invention are：How to improve cutting power and then lift rate of cutting, reduce cutting
Time, the yields of stable silicon chip, cost is prepared so as to reduce silicon chip.
The technical solution adopted in the present invention is：A kind of special construction steel wire silicon chip of NTC-PV800H silicon chip cutters is cut
Segmentation method, carried out according to the steps：
Step 1, the home roll slot pitch for changing the cutting machine are 0.348mm, from a kind of special construction steel wire (Fig. 1), steel wire diameter
For 0.115mm；
Step 2, using unidirectional cutting technique, technological parameter is：Steel wire tension force：15N~23N, feed velocity：0.24mm/min
~0.47mm/min, steel wire speed：640m/min~800m/min, line sending distance：70m/min~120m/min, mortar temperature：
20 DEG C~23 DEG C, mortar flow：80l/min~100l/min；
Step 3, steel wire hilted broadsword dosage 290km~400km, often cut two knives and change a mortar, the control of mortar replacing amount exists
600kg~800kg.
In described silicon chip cutting technique, mortar is by carborundum with the weight of cutting liquid 1: 0.9~0.97 than preparing；Wherein cut
Cut liquid to be made up of 100% recovered liquid, carborundum is made up of the recovery sand of 75% weight and the fresh sand of 25% weight.
In described silicon chip cutting technique, the performance of carborundum is as follows in mortar：The granularity of carborundum：D50 be 8.2 ±
0.2 μm, that is, represent to account for the particle diameter of 50% ratio between 8-8.4 μm in silicon-carbide particle particle diameter distribution.
The beneficial effects of the invention are as follows：Effectively improve cutting power and then lift rate of cutting, reduce clipping time, reduce
Silicon material line cuts loss, the yields of Simultaneous Stabilization silicon chip, cost is prepared so as to reduce silicon chip.
Brief description of the drawings
Technical solution of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1：The special construction steel wire organigram of the present invention, special construction steel wire are characterized as meander line structure, and broken line angle is
150 °, steel wire diameter 0.115mm.
Embodiment
The present invention carries out silicon chip cutting using NTC-PV800H silicon chip cutters, and current NTC-PV800H silicon chip cutters enter
Knife speed is 8.5 hours in 0.15mm/min~0.37mm/min, clipping time, shows special construction steel wire using Fig. 1, will can enter
Knife speed is promoted to 0.24mm/min~0.47mm/min, and clipping time is reduced into 6.5 hours.But a system occurs after adjusting
Row problem：Mortar flow not enough causes steel wire abrasion increase in cutting process, and cutting power deficiency causes stria piece, steel wire tension
Remitted its fury, broken string phenomenon easily occurs.How satisfaction lifts the technological requirement of cutting power, present invention discover that using a kind of
Special construction steel wire, 0.348mm slot pitches are kept, is set according to certain technological parameter, can meet to require, it is specific as follows：
Step 1, shows special construction steel wire from Fig. 1 first, and setting steel wire diameter is 0.115mm；
Step 2, using unidirectional cutting technique, technological parameter is：Steel wire tension force：15N~23N, feed velocity：0.24mm/min
~0.47mm/min, steel wire speed：640m/min~760m/min, line sending distance：70m/min~120m/min, mortar temperature：
20 DEG C~23 DEG C, mortar flow：80l/min~100l/min；
Step 3, steel wire hilted broadsword dosage 290km~400km, slurry density are maintained at 1.66g/cm~1.68g/cm, start to cut
Cut, often cut two knives and change a mortar, mortar replacing amount is controlled in 600kg~800kg.
Mortar：By carborundum and the weight of cutting liquid 1: 0.9~0.97 than preparing；Wherein cutting liquid is by 100% recovery
Liquid is formed, and carborundum is made up of the recovery sand of 75% weight and the fresh sand of 25% weight.
Cooling water temperature is kept for 10 DEG C~12 DEG C, and factory building temperature is kept for 25 ± 2 DEG C.
Silicon chip cutting technique according to claim, the performance of carborundum is as follows in described mortar：Carborundum
Granularity：D50 is 8.2 ± 0.2 μm, that is, represent to account in silicon-carbide particle particle diameter distribution the particle diameter of 50% ratio 8-8.4 μm it
Between.
Claims (2)
- A kind of 1. special construction steel wire method for cutting silicon chips of NTC-PV800H silicon chip cutters, it is characterised in that：According to as follows The step of carry out：Step 1, the home roll slot pitch for changing the cutting machine are 0.348mm, from a kind of special construction steel wire (Fig. 1), steel wire diameter For 0.115mm；Step 2, using unidirectional cutting technique, technological parameter is：Steel wire tension force：15N~23N, feed velocity：0.33mm/min ~0.47mm/min, steel wire speed：640m/min~760m/min, line sending distance：70m/min~120m/min, mortar temperature： 20 DEG C~23 DEG C mortar flows：80l/min~100l/min；Step 3, often cut two knives and change a mortar, mortar replacing amount is controlled in 600kg~800kg.
- 2. in claim 1, a kind of special construction steel wire is characterized as meander line structure, broken line angle is 150 °, and steel wire diameter is 0.115mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345764.8A CN107813433A (en) | 2017-05-15 | 2017-05-15 | A kind of special construction steel wire method for cutting silicon chips of NTC PV800H silicon chip cutters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345764.8A CN107813433A (en) | 2017-05-15 | 2017-05-15 | A kind of special construction steel wire method for cutting silicon chips of NTC PV800H silicon chip cutters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107813433A true CN107813433A (en) | 2018-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710345764.8A Pending CN107813433A (en) | 2017-05-15 | 2017-05-15 | A kind of special construction steel wire method for cutting silicon chips of NTC PV800H silicon chip cutters |
Country Status (1)
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| CN (1) | CN107813433A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352845A (en) * | 2018-10-23 | 2019-02-19 | 开封大学 | A kind of NTC-MWM442DM silicon materials cutting machine method for cutting silicon chips |
| CN109551651A (en) * | 2018-10-23 | 2019-04-02 | 开封大学 | A kind of special construction steel wire method for cutting silicon chips being applicable in NTC-MWM442DM silicon materials cutting machine |
| CN114770779A (en) * | 2022-04-29 | 2022-07-22 | 浙江晶盛机电股份有限公司 | Mortar cutting process of silicon carbide crystal and silicon carbide sheet |
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| JP2004276207A (en) * | 2003-03-18 | 2004-10-07 | Kanai Hiroaki | Saw wire for multi-wire saw |
| CN102205563A (en) * | 2011-05-25 | 2011-10-05 | 镇江耐丝新型材料有限公司 | Spiral waveform cutting metal wire as well as manufacturing method and equipment thereof |
| CN202283752U (en) * | 2011-06-03 | 2012-06-27 | 凡登（常州）新型金属材料技术有限公司 | Linear cutting steel wire of solar silicon chip |
| CN202592555U (en) * | 2012-05-10 | 2012-12-12 | 江苏聚能硅业有限公司 | Steel wire used for free cutting of silicon rod |
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| CN109352845A (en) * | 2018-10-23 | 2019-02-19 | 开封大学 | A kind of NTC-MWM442DM silicon materials cutting machine method for cutting silicon chips |
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| CN114770779A (en) * | 2022-04-29 | 2022-07-22 | 浙江晶盛机电股份有限公司 | Mortar cutting process of silicon carbide crystal and silicon carbide sheet |
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Application publication date: 20180320 |