Problems in aluminum veneer industry
Published on:2012-04-28 16:23:00 Click:
Reading Guide:Although in recent years, the market potential of China's decoration market is relatively optimistic under the promotion of China's rapid economic development and external factors such as Beijing Olympic Games and Shanghai World Expo.
Although in recent years, the market potential of China's decoration market is relatively optimistic under the promotion of China's rapid economic development and external factors such as Beijing Olympic Games and Shanghai World Expo. However, the overall situation and reality of aluminum veneer composite board industry are by no means optimistic. At present, the main problems are as follows:
First, the overheated development of the industry and the blind investment of a large number of businesses have led to the imbalance between supply and demand of aluminum veneer products. This problem takes the aluminum veneer of exterior wall (national standard engineering board) as an example. According to the statistical data of only 18 domestic companies, the annual output is 9.28 million square meters, which accounts for almost 1 / 3 ~ 1 / 2 of the national curtain wall construction volume. According to this estimation, the national output of exterior wall board obviously exceeds the total curtain wall project volume of 20 ~ 30 million square meters. This means that even if all projects use aluminum veneers, there is an imbalance between supply and demand.
Second, the industry is impacted by other materials. In recent years, the exterior wall aluminum single composite board has been impacted by aluminum honeycomb board, pure single aluminum board, aluminum aluminum composite board and other products in the metal curtain wall industry. This situation is not entirely caused by the external cause of technological progress and development, but more by the lack of in-depth research on the technical characteristics of aluminum single composite plate in the industry, strengthening product quality and construction specifications, resulting in users and designers losing confidence in aluminum single composite building materials, so that aluminum single composite plate gives up its original market share for other products.
Third, the price war within the aluminum veneer composite board industry has led to the decline of product quality in the whole industry. Due to the oversupply of products, the market is chaotic and the product quality is very different. The low-grade aluminum veneer composite board impacts the whole aluminum veneer composite board market, causing great losses to famous aluminum veneer composite board enterprises.
Fourth, some counterfeiting and shoddy, shoddy work and materials continue to breed, and the wrong application of aluminum veneers also occurs from time to time. Some use interior wall panels as exterior wall panels, some use ordinary decorative thin plates as curtain wall panels, and some use ordinary plates as fluorocarbon plates, etc; Some users cannot correctly apply aluminum veneer due to their limited understanding of aluminum veneer, and misunderstand aluminum veneer, which affects the development of aluminum veneer composite board.
The plane positioning of wallboard shall comply with the following provisions:
1、 The center line of the thickness of the inner wall panel shall coincide with the positioning axis;
2、 The distance between the inner edge of the outer wall panel and the positioning axis shall be half of the thickness of the inner wall panel.
The plane positioning of wallboard at deformation joint shall comply with the following provisions:
1、 When positioning the double wall panels, the wall panels on both sides shall be positioned according to the outer wall panels;
2、 The plane positioning of wall panels with connection dimensions shall adopt double wall panels with connection dimensions, and the wall panels on both sides shall be treated as exterior wall panels.
The positioning of wallboard at the boundary between high and low floors shall comply with the following provisions:
1、 When there is no deformation joint in the wall panel at the boundary between high and low floors, the single wall panel and single axis positioning shall be adopted. The high-rise wall panel shall be treated as an outer wall panel and coincide with the positioning axis of the lower inner wall panel;
2、 When the deformation joint is set on the wall panel at the boundary of high and low floors, it shall be positioned according to the plane of the wall panel at the deformation joint.
The distance between the outer edge of the inner wall panel of the staircase and the positioning axis shall be half of the thickness of other load-bearing inner wall panels. The outer wall panel of the staircase shall be positioned according to the outer wall panel.
The vertical positioning of wallboard shall comply with the following provisions:
1、 The vertical positioning line of the building (ground) surface shall coincide with the upper surface of the building (ground) surface layer;
2、 The vertical positioning of the roof shall be the intersection of the upper surface of the roof structure layer and the positioning axis at the thickness of one-half of the inner wall plate from the inner edge of the outer wall plate.
First, the overheated development of the industry and the blind investment of a large number of businesses have led to the imbalance between supply and demand of aluminum veneer products. This problem takes the aluminum veneer of exterior wall (national standard engineering board) as an example. According to the statistical data of only 18 domestic companies, the annual output is 9.28 million square meters, which accounts for almost 1 / 3 ~ 1 / 2 of the national curtain wall construction volume. According to this estimation, the national output of exterior wall board obviously exceeds the total curtain wall project volume of 20 ~ 30 million square meters. This means that even if all projects use aluminum veneers, there is an imbalance between supply and demand.
Second, the industry is impacted by other materials. In recent years, the exterior wall aluminum single composite board has been impacted by aluminum honeycomb board, pure single aluminum board, aluminum aluminum composite board and other products in the metal curtain wall industry. This situation is not entirely caused by the external cause of technological progress and development, but more by the lack of in-depth research on the technical characteristics of aluminum single composite plate in the industry, strengthening product quality and construction specifications, resulting in users and designers losing confidence in aluminum single composite building materials, so that aluminum single composite plate gives up its original market share for other products.
Third, the price war within the aluminum veneer composite board industry has led to the decline of product quality in the whole industry. Due to the oversupply of products, the market is chaotic and the product quality is very different. The low-grade aluminum veneer composite board impacts the whole aluminum veneer composite board market, causing great losses to famous aluminum veneer composite board enterprises.
Fourth, some counterfeiting and shoddy, shoddy work and materials continue to breed, and the wrong application of aluminum veneers also occurs from time to time. Some use interior wall panels as exterior wall panels, some use ordinary decorative thin plates as curtain wall panels, and some use ordinary plates as fluorocarbon plates, etc; Some users cannot correctly apply aluminum veneer due to their limited understanding of aluminum veneer, and misunderstand aluminum veneer, which affects the development of aluminum veneer composite board.
The plane positioning of wallboard shall comply with the following provisions:
1、 The center line of the thickness of the inner wall panel shall coincide with the positioning axis;
2、 The distance between the inner edge of the outer wall panel and the positioning axis shall be half of the thickness of the inner wall panel.
The plane positioning of wallboard at deformation joint shall comply with the following provisions:
1、 When positioning the double wall panels, the wall panels on both sides shall be positioned according to the outer wall panels;
2、 The plane positioning of wall panels with connection dimensions shall adopt double wall panels with connection dimensions, and the wall panels on both sides shall be treated as exterior wall panels.
The positioning of wallboard at the boundary between high and low floors shall comply with the following provisions:
1、 When there is no deformation joint in the wall panel at the boundary between high and low floors, the single wall panel and single axis positioning shall be adopted. The high-rise wall panel shall be treated as an outer wall panel and coincide with the positioning axis of the lower inner wall panel;
2、 When the deformation joint is set on the wall panel at the boundary of high and low floors, it shall be positioned according to the plane of the wall panel at the deformation joint.
The distance between the outer edge of the inner wall panel of the staircase and the positioning axis shall be half of the thickness of other load-bearing inner wall panels. The outer wall panel of the staircase shall be positioned according to the outer wall panel.
The vertical positioning of wallboard shall comply with the following provisions:
1、 The vertical positioning line of the building (ground) surface shall coincide with the upper surface of the building (ground) surface layer;
2、 The vertical positioning of the roof shall be the intersection of the upper surface of the roof structure layer and the positioning axis at the thickness of one-half of the inner wall plate from the inner edge of the outer wall plate.
