High Strength Bolt Connection of Torsion-shear Electric Spanner

　　1 范圍

　　Scope 1

　　本工藝規(guī)范適用于鋼構(gòu)造裝置用扭剪型電動(dòng)扳手高強(qiáng)螺栓施工工藝。

　　This technical specification is applicable to the construction technology of high strength bolts of torsional shear type electric wrench for steel structure devices.

　　2 施工準(zhǔn)備

　　2. Construction preparation

　　2.1 資料及主要機(jī)具：

　　2.1 Data and main machines:

　　2.1.1 螺栓、螺母、墊圈均應(yīng)附有質(zhì)量證明書，并應(yīng)契合設(shè)計(jì)請(qǐng)求和國度規(guī)范的規(guī)則。

　　2.1.1 Bolts, nuts and gaskets shall be accompanied by a certificate of quality and shall conform to the design requirements and the rules of the national code.

　　2.1.2 高強(qiáng)螺栓入庫應(yīng)按規(guī)格分類寄存，并防雨、防潮。遇有螺栓、螺母不配套，螺紋損傷時(shí)，不得運(yùn)用。螺栓、螺母、墊圈有銹蝕，應(yīng)抽樣檢查緊固軸力，滿足請(qǐng)求前方可運(yùn)用。螺栓等不得被泥土、油污粘染，堅(jiān)持干凈、枯燥狀態(tài)。必需按批號(hào)，同批內(nèi)配套運(yùn)用，不得混放、混用。

　　2.1.2 High-strength bolts should be stored in storage according to specifications, and be rain-proof and moisture-proof. When bolts and nuts are not matched and thread damage occurs, they shall not be used. Bolts, nuts and washers are corroded. The fastening axial force should be sampled and checked before the request is met. Bolts, etc. shall not be contaminated by soil or oil, and shall be kept in a clean and dry state. It must be used in the same batch according to the batch number. No mixing or mixing is allowed.

　　2.1.3 主要機(jī)具：電動(dòng)扭矩扳手及控制儀、手動(dòng)扭矩扳手、手工扳手、鋼絲刷、工具袋等。

　　2.1.3 Main machines and tools: electric torque wrench and controller, manual torque wrench, manual wrench, wire brush, tool bag, etc.

　　2.2 作業(yè)條件：

　　2.2 Operating conditions:

　　2.2.1 摩擦面處置：摩擦面采用噴砂、砂輪打磨等辦法停止處置，摩擦系數(shù)應(yīng)契合設(shè)計(jì)請(qǐng)求（普通請(qǐng)求Q235鋼為0.45以上，16錳鋼為0.55以上）。摩擦面木允許有殘留氧化鐵皮，處置后的摩擦面可生成赤銹面后裝置螺栓（普通露天存10d左右），用噴砂處置的摩擦面不用生銹即可裝置螺栓。采用砂輪打磨時(shí)，打磨范圍不小于螺栓直徑的4倍，打磨方向與受力方向垂直，打磨后的摩擦面應(yīng)無明顯不平。摩擦面避免被油或油漆等污染，如污染應(yīng)徹底清算潔凈。

　　2.2.1 Friction surface disposal: Friction surface is stopped by sandblasting and grinding wheel. Friction coefficient should meet the design requirements (common request Q235 steel is above 0.45, 16 manganese steel is above 0.55). Residual iron oxide scale is allowed on the friction surface wood. After disposal, the screw bolts of the rear device with red rust surface can be formed (stored in open air for about 10 days). The screw bolts can be installed without rusting on the friction surface disposed by sand blasting. When grinding with grinding wheel, the grinding range is not less than 4 times the diameter of bolt, the direction of grinding is perpendicular to the direction of force, and the friction surface after grinding should not be uneven. Friction surfaces should be cleaned thoroughly to avoid contamination by paint or paint.

　　2.2.2 檢查螺栓孔的孔徑尺寸，孔邊有毛刺必需肅清掉。

　　2.2.2 Check the hole size of bolt holes. Burrs on the hole edge must be removed.

　　2.2.3 同一批號(hào)、規(guī)格的螺栓、螺母、墊圈，應(yīng)配套裝箱待用。

　　2.2.3 Bolts, nuts and gaskets of the same batch number and specifications shall be packed in boxes for use.

　　2.2.4 電動(dòng)扳手及手動(dòng)扳手應(yīng)經(jīng)過標(biāo)定。

　　2.2.4 Electric wrenches and manual wrenches shall be calibrated.

　　4 質(zhì)量規(guī)范

　　4 Quality Specification

　　3.1 保證項(xiàng)目：

　　3.1 Guarantee Project:

　　3.1.1 高強(qiáng)螺栓的型式、規(guī)格和技術(shù)條件必需契合設(shè)計(jì)請(qǐng)求及有關(guān)規(guī)范的規(guī)則，檢查質(zhì)量證明書及出廠檢驗(yàn)報(bào)告。復(fù)驗(yàn)螺栓預(yù)拉力契合規(guī)則前方準(zhǔn)運(yùn)用。

　　3.1.1 The type, specifications and technical conditions of high strength bolts must conform to the design requirements and the rules of relevant specifications, check the quality certificate and the factory inspection report. The pre-tension fit rule of the re-inspection bolt shall be applied in front of it.

　　3.1.2 銜接面的摩擦系數(shù)（抗?jié)撘葡禂?shù)）必需契合設(shè)計(jì)請(qǐng)求。外表嚴(yán)禁有氧化鐵皮、毛刺、飛濺物、焊疤、涂料和污垢等，檢查摩擦系數(shù)試件實(shí)驗(yàn)報(bào)告及現(xiàn)場試件復(fù)驗(yàn)報(bào)告。

　　The friction coefficient (anti-latent displacement coefficient) of the 3.1.2 interface must meet the design requirements. It is strictly forbidden to have oxide scale, burrs, spatters, weld scars, coatings and dirt on the surface. The test report of friction coefficient and the re-examination report of field test pieces are checked.

　　3.1.3 初擰扭矩扳手應(yīng)定期標(biāo)定。高強(qiáng)螺栓初擰、終擰必需契合施工標(biāo)準(zhǔn)及設(shè)計(jì)請(qǐng)求，檢查標(biāo)定記載及施工記載。

　　3.1.3 Initial twisting torque wrench should be calibrated regularly. Initial and final twisting of high strength bolts must conform to the construction standards and design requirements, check the calibration records and construction records.

　　4.2 根本項(xiàng)目：

　　4.2 Fundamental Projects:

　　4.2.1 外觀檢查：螺栓穿入方向應(yīng)分歧，絲扣外露長度不少于2扣。

　　4.2.1 Appearance inspection: Bolt penetration direction should be different, the length of thread exposure should not be less than 2 buckles.

　　4.2.2 扭剪型高強(qiáng)螺栓尾部卡頭終擰后應(yīng)全部擰掉。

　　4.2.2 The end clamp of Torsion-shear high strength bolt should be screwed off completely after final screw.

　　4.2.3 摩擦面間隙契合施工標(biāo)準(zhǔn)的請(qǐng)求。

　　4.2.3 Friction clearance conforms to the requirements of construction standards.

　　5 廢品維護(hù)

　　5 Waste Maintenance

　　5.1 構(gòu)造防腐區(qū)段（如酸洗車間）應(yīng)在銜接板縫、螺頭、螺母、墊圈周邊涂抹防腐膩?zhàn)樱ㄈ邕^氯乙烯膩?zhàn)樱┓怄i，面層防腐處置與該區(qū)鋼構(gòu)造相同。

　　5.1 Structural anticorrosive section (such as pickling workshop) should be sealed with anticorrosive putty (such as perchloroethylene putty) around jointing plate seam, screw head, nut and washer. The surface anticorrosive treatment is the same as that of steel structure in this area.

　　5.2 構(gòu)造防銹區(qū)段，應(yīng)在銜接板縫、螺頭、螺母、墊圈周邊涂快干紅丹漆封鎖，面層防銹處置與該區(qū)鋼構(gòu)造相同。

　　5.2 In the structural rust-proof section, fast-drying red paint should be applied around the joints of joints, bolts, nuts and washers, and the surface rust-proof treatment is the same as that of the steel structure in this area.

　　6 應(yīng)留意的質(zhì)量問題

　　6. Quality issues to be noted

　　6.1 裝配面不契合請(qǐng)求：外表有浮銹、油污，螺栓孔有毛刺、焊瘤等，均應(yīng)清算潔凈。

　　6.1 The assembly surface does not meet the requirements: the appearance of floating rust, oil stain, burrs in bolt holes, welding nodules, etc., should be clean.

　　6.2 銜接板拼裝不嚴(yán)：銜接板變形，間隙大，應(yīng)校正處置后再運(yùn)用。

　　6.2 Insufficient assembling of the connection plate: the connection plate is deformed and has large clearance. It should be corrected and disposed of before it is used.

　　6.3 螺栓絲扣損傷：螺栓應(yīng)自在穿入螺孔，不準(zhǔn)許強(qiáng)行打入。

　　6.3 Bolt screw damage: Bolt should be free to penetrate the hole, not forcibly penetrate.

　　6.4 扭矩不準(zhǔn)：應(yīng)定期標(biāo)定扳手的扭矩值，其偏向不大于5%，嚴(yán)厲按緊固次第操作。

　　6.4 Torque inaccuracy: The wrench's torque value should be calibrated regularly, and its deviation is less than 5%. The wrench should be operated strictly according to the tightening order.

　　7 質(zhì)量記載

　　7 Quality Records

　　本工藝規(guī)范應(yīng)具備以下質(zhì)量記載：

　　This process specification shall have the following quality records:

　　7.1 高強(qiáng)螺栓、螺母、墊圈組成的連續(xù)副的出廠質(zhì)量證明、出廠一檢驗(yàn)報(bào)告。

　　7.1 Quality Certificate of Continuous Pairs of High Strength Bolts, Nuts and Washers and One Inspection Report of Exit.

　　7.2 高強(qiáng)螺栓預(yù)拉力復(fù)驗(yàn)報(bào)告。

　　7.2 Re-inspection report on pre-tension of high strength bolts.

　　7.3 摩擦面抗滑移系數(shù)（摩擦系數(shù)）實(shí)驗(yàn)及復(fù)驗(yàn)報(bào)告。

　　7.3 Anti-slip coefficient (friction coefficient) experiment and re-examination report of friction surface.

　　7.4 扭矩扳手標(biāo)定記載。

　　7.4 Torque wrench calibration record.

　　7.5 設(shè)計(jì)變卦、洽商記載。

　　7.5 Records of design change and negotiation.

　　7.5 施工檢查記載。

　　7.5 Records of construction inspection.

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