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Glass fiber woven roving can be divided into&♥♣ : fiberglass woven roving, E-glass woven rovi£∑≈&ng, C-glass woven roving, woven "δ roving for pipe, high temperatu☆★πre resistant woven roving. Due to the> high temperature resistant ,it can be used f®π∑or: pipes, cables, partition←↓® s for boilers and various industrial equi∞✔¶φpment used in electric power, petroleum,©±§ textile, chemical industry, insulation "↓>≠and sound insulation of ceilings and interior ∞✔and exterior walls.
Due to the high temperature resistant Glass fiber£ cloth use and characteristics High tempera★ ₩ture resistant glass cloth Uses: pipes, c∞₩♦"ables, partitions for boilers and various in✔∏♠σdustrial equipment used in electric power,¥δ★> petroleum, textile, chemical industr←∞¥αy, insulation and sound insulation of ceilings ≤★©and interior and exterior walls.
Glass fiber products are further divided δ♣ε into: fiberglass cloth, alkali-free g>±lass fiber cloth, medium alk↕ali glass fiber cloth, pipe glass fiber cloth, hi€≠gh temperature resistant glass fiber cloth.
Introduction to fiberglass woven roving: Glass fi✔λber cloth Glass fiber woven roving is'↑Ω≤ made of glass fiber and is widely uΩ✘ sed in petrochemical, construction, thermal power↑☆ plants, aviation, shipbuilding, anti-corrosion ↑&and thermal insulation pipe≈✔" coating. Performance characteristics:
1. Light weight and high corrosion resistan<♦ce, suitable for inside and γ&αoutside the pipeline project and pool surface.2,™↓δ∏ long life, anti-aging, good insulation perform ≠ance.3. Convenient construction, ≤₽∑€low cost and high work efficiency.
Glass fiber cloth PTFE gaskets inclβφ ude pure polytetrafluoroethylene, filleλ d polytetrafluoroethylene or expanded λ∏®polytetrafluoroethylene.
1 Semi-metal gasket (also known as metal composit×←e gasket). Non-metallic materials have the adva•₽ntages of good flexibility, compresΩ λ÷sibility and low bolt load capacity. Howev ✔er, its main determination is the strength is ↓∞≤not high, the rebound resilience is poor, and it ₹₹₽is not suitable for high-pressure high-temperatγ←ure occasions. Therefore, the compou✔§≈nd metal material has high strength ₽♦σand good resilience. Can withstand high tempe∏÷ratures. A gasket is forme×€d which combines the two structures"€₩✘. It is a semi-metal gasket.'λ>✘ Semi-metal gaskets mainly include me®→¥♣tal-clad gaskets, metal-wound gaskets, metal γ₽corrugated gaskets, and metal-toothed gaske↓φδts.
2 Metal pad (metal composite pad). ¥•♣∑The gasket is made of a non-metal core an≥®®♥d is wrapped with a metal s₹ε£heet with a thickness of 0. "¶25-0. 5 mm. According to the state of coating, it'₩ can be divided into full coatin♥©←g, semi-cladding, wave coating and double §Ω≥coating. The metal sheet is se✔☆☆lected according to the elas' toplasticity, heat resistance and corrosion re§¶>♥sistance of the material. Ma≤↕'inly copper, galvanized iron, stainlεα♥ess steel, titanium, monel and so on. As t♠₽∞φhe core material of the metal •€pad, heat resistance is the main evalu₩♥ation index. Generally used asbestos board or loΩ ∏©w rubber asbestos board, high temper™≤§>ature resistant carbon fiber or cera®±¶©mic fiber and flexible graphite₽₩§φ sheet. Another feature of the me♣™Ω↑tal coated mat is that it can be made i®α™nto various types of gaskets. It can m> ←∞eet the needs of various heat exchanger tub₽≈₩es and non-circular pressure vesselγ•₽♣ seals, while other composite gasket∞δ<s cannot.
3 Metal wound gaskets. The metal wound g$©asket is formed by alternately windinπ☆γ↔g a thin metal corrugated strip with a ®★→non-metal such as asbestos or flexiαβ∑λble graphite, and welding the starting •®÷end of the metal strip. Foreig↔§∑n countries are also called spiral gaskets.
4 Metal gaskets. Under the harsh operating cond∑÷itions of high temperature and ≠÷high pressure and frequent load cycles,γ£ various metal materials ar¥<✘e still the preferred materials for gaskets. C÷§ommonly used materials are™♥< copper, aluminum, low carbon steel, stainle∏®ss steel, chrome-nickel alloy steel, titaniu&€§m monel, etc. . In order to re≤ duce the bolt load and ensur☆σe a compact structure, in addition to the met₽↓>↓al flat pad as far as possible tδ₽♣≥o adopt a narrow width, a variety of ring pad s↔¶tructures with line contact features are pr$'eferred forms.
5 Flat metal gaskets. The flat shape is >• divided into two types: a wide spacer and a na$λ£♠rrow spacer. Wide gaskets re$©→®quire large pre-tightening forces $₹<and are prone to deformation ofλ the bolt flange. When the £≥<pressure exceeds 1.96 MPa, it is rarely used on €£ smooth flanges. The narrow gasket isλ₽₩♥ easy to pre-tighten and ca₽®n be used on pipes with a pressure of 6.27-9.≥←↕ 8MPa.
Glass fiber cloth Glass fiber cloth Glass f∑€iber cloth is classified according to its warp an♠λ≈d weft direction: no roving, single warp, single€> weft.